Data Package Metadata View Summary

Data Package for the 2022 Great Lakes Winter Grab

General Information

Data Package:

Local Identifier:

edi.1569.3

Title:

Data Package for the 2022 Great Lakes Winter Grab

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

The data package contains the results from a multi-institutional winter limnology sampling campaign on the Laurentian Great Lakes. Researchers from 19 institutions sampled 49 locations in all five of the Great Lakes over a period of 24 days in February-March 2022. This dataset contains information on diverse physical, chemical, and biological parameters.

Great Lakes Winter Grab ArcGIS Storymap showing all locations of sampling sites and select photos:

https://storymaps.arcgis.com/stories/8ff1c332dd944ba9a744dc0e0fc18906

Publication Date:

2024-09-27

For more information:
Visit:	DOI PLACE HOLDER

Time Period

Begin:

2022-02-04

End:

2022-03-10

People and Organizations
Contact:	Pu, Ge (Cleveland Water Alliance) [ email ]
Contact:	Ozersky, Ted (University of Minnesota Duluth) [ email ]
Creator:	Pu, Ge (Cleveland Water Alliance)
Creator:	Ozersky, Ted (University of Minnesota Duluth)
Creator:	Bramburger, Andrew J (Environment and Climate Change Canada)
Creator:	Carrick, Hunter J (Central Michigan University)
Creator:	Chaffin, Justin D (The Ohio State University)
Creator:	Coleman, Maureen L (University of Chicago)
Creator:	Currie, Warren J. S. (Fisheries and Oceans Canada)
Creator:	Depew, David C (Environment and Climate Change Canada)
Creator:	Doubek, Jonathan P (Lake Superior State University)
Creator:	Eveleth, Rachel K (Oberlin College)
Creator:	Godwin, Casey M (University of Michigan)
Creator:	McKay, R. Michael (University of Windsor)
Creator:	Munawar, Mohiuddin (Fisheries and Oceans Canada)
Creator:	Pearce, Nolan J. T. (Trent University)
Creator:	Rennie, Michael D (Lakehead University)
Creator:	Shchapov, Kirill (Cawthron Institute, Nelson, New Zealand)
Creator:	Twiss, Michael R (Algoma University)
Creator:	Vanderploeg, Henry A (NOAA GLERL)
Creator:	Vick-Majors, Trista J (Michigan Technological University)
Creator:	Xenopoulos, Marguerite A (Trent University)
Creator:	Zastepa, Arthur (Environment and Climate Change Canada)
Associate:	Bowen, Kelly L (Fisheries and Oceans Canada, Data Collector/Processor)
Associate:	Camilleri, Andrew C (University of Michigan, Data Collector/Processor)
Associate:	Cody, William R
Associate:	Fitzpatrick, Mark A. J. (Fisheries and Oceans Canada, Data Collector/Processor)
Associate:	Glyshaw, Paul W (National Oceanic and Atmospheric Administration, Data Collector/Processor)
Associate:	Niblock, Heather A (Fisheries and Oceans Canada, Data Collector/Processor)
Associate:	Quintanilla, Maci E (Michigan Technological University, Data Collector/Processor)
Associate:	Westrick, Westrick A (Wayne State University, Data Collector/Processor)

Data Entities
Data Table Name:	WinterGrab_alkalinity
Description:	This file contains alkalinity data for 46 of our 49 sites, determined using titration and expressed as micromole per kilogram.
Data Table Name:	WinterGrab_bacterialproduction_rate
Description:	This file contains bacterial production rate data for water surface samples at 20 of our 49 sites. Bacterial production was determined using tritium-labeled methyl-thymidine and leucine incorporation and results are given for both, as either nmol thymidine (or leucine)/L/day or in units of ng Carbon/L/d.
Data Table Name:	WinterGrab_chlA_concentration
Description:	This file contains chlorophyll a concentration results for 47 of our 49 sites. Chlorophyll a concentrations were determined by fluorimetry from acetone-extracted filters and are reported in micrograms/L.
Data Table Name:	WinterGrab_chloride_concentration
Description:	This file contains chloride concentration results for 47 of our 49 sites. Chloride concentrations were determined by potentiometry and are reported as parts per million (ppm).
Data Table Name:	WinterGrab_CTD_profiles
Description:	This file contains depth-resolved conductivity, temperature, and depth (CTD) sonde profile data for 16 of our 49 sites
Data Table Name:	WinterGrab_DOC_DOM_concentration
Description:	This file contains dissolved organic carbon (DOC) concentrations and several parameters characterizing dissolved organic matter (DOM) in water and ice samples from 27 (water) and 20 (ice) sites out of our 49 study sites.
Data Table Name:	WinterGrab_microbial_loop_abundance
Description:	This file contains abundances of microbial loop components (bacteria, picoplankton, nanoflagellates) determined by microscopy for 11 of our 49 sites, and expressed as cells/L
Data Table Name:	WinterGrab_microcystin_concentration
Description:	This file contains microcystin concentration data for 20 of our 49 sites, as determined by ELISA and expressed in µg/L.
Data Table Name:	WinterGrab_NH4_concentration
Description:	This file contains ammonia (NH4) concentration data from 46 of our 49 sampling sites, determined using the Alkaline phenate method and expressed in mg/L
Data Table Name:	WinterGrab_NO2_concentration
Description:	This file contains nitrite (NO2) concentration data for 46 of our 49 sampling sites, determined using cadmium coil reduction followed by sulfanilamide reaction and expressed in mg/L
Data Table Name:	WinterGrab_NO3_concentration
Description:	This file contains nitrate (NO3) concentration data for 46 of our 49 sampling sites, determined using cadmium coil reduction followed by sulfanilamide reaction and expressed in mg/L
Data Table Name:	WinterGrab_PCPE_concentration
Description:	This file contains phycocyanin (PC) and phycoerythrin (PE) concentration for 21 of our 49 sampling sites. PC and PE concentrations were determined using spectrophotometery and expressed in ug/L
Data Table Name:	WinterGrab_snow_ice_properties
Description:	This file contains information on ice and snow thickness and properties for 39 of our 49 sampling sites
Data Table Name:	WinterGrab_TDP_concentration
Description:	This file contains total dissolved phosphorus (TDP) concentration data for 46 of our 49 sampling sites, determined by semi-automated colorimetry and expressed in micrograms/L.
Data Table Name:	WinterGrab_TN_concentration
Description:	This file contains total nitrogen (TN) concentration data for 46 of our 49 sampling sites, determined using the colorimetric hydrazine method and expressed in milligrams/L.
Data Table Name:	WinterGrab_TP_concentration
Description:	This file contains total phosphorus (TP) concentration data for 48 of our 49 sampling sites, determined by semi-automated colorimetry and expressed in micrograms/L. Note: issues with calibration during analysis make these data unsuitable for comparison with TP data from other studies (see methods section for additional information).
Data Table Name:	WinterGrab_microbial_flowcytometry_abundance
Description:	This file contains microbe abundance data for 44 of our 49 sampling sites, determined using flow cytometry and expressed in cells/L
Data Table Name:	WinterGrab_light_transmission
Description:	This file contains light (photosynthetically active radiation - PAR) transmission data through ice and snow, PAR attenuation coefficients through the water column, and descriptions of the ice and snow conditions for 22 of our 49 sites.
Data Table Name:	WinterGrab_PPR
Description:	This file contains lab-based phytoplankton primary production rate (PPR) parameters from measurements performed on samples from 11 of our 49 study sites
Data Table Name:	WinterGrab_ciliated_protist_abundance
Description:	This file contains abundance data on ciliated protists for 24 of our 49 sampling sites, expressed in cells/mL. These data are in ‘long’ format.
Data Table Name:	WinterGrab_particulate_cyanotoxins_concentration
Description:	This file contains data on particulate concentrations of 25 cyanotoxin metabolites for 19 of our 49 study sites. Concentrations were determined using liquid chromatography tandem mass spectrometry (LC-MS-MS) for material retained on filters, representing particulate metabolite concentrations, expressed in parts per billion. These data are in ‘long’ format.
Data Table Name:	WinterGrab_wholewater_cyanotoxins_concentration
Description:	This file contains data on whole water concentrations of 25 cyanotoxin metabolites for 19 of our 49 study sites. Concentrations were determined using liquid chromatography tandem mass spectrometry (LC-MS-MS) for whole water samples, expressed in parts per billion. These data are in ‘long’ format.
Data Table Name:	WinterGrab_phytoplankton_abundance_McKay
Description:	This file contains phytoplankton abundance data for 27 of our 49 sampling sites, determined by the McKay lab (University of Windsor) and expressed in cells/mL. These data are in ‘long’ format.
Data Table Name:	WinterGrab_phytoplankton_abundance_Munawar
Description:	This file contains phytoplankton abundance data for 27 of our 49 sampling sites, determined by the Munawar lab (Environment and Climate Change Canada) and expressed in cells/mL. These data are in ‘long’ format.
Data Table Name:	WinterGrab_phytoplankton_biomass_Munawar
Description:	This file contains phytoplankton biomass data for 13 of our 49 sampling sites, determined by the Munawar lab (Environment and Climate Change Canada) and expressed as milligrams wet weight per cubic meter. These data are in ‘long’ format.
Data Table Name:	WinterGrab_crustacean_zooplankton_abundance
Description:	This file contains crustacean zooplankton abundances for 12 of our 49 study sites, in ‘long’ format. Zooplankton abundance was determined by microscopy on zooplankton net tows. Abundances are expressed as individuals per liter.
Data Table Name:	WinterGrab_sites
Description:	Winter Grab sampling site metadata, water depth, ice thickness, and snow thickness. NA means no data.

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/ab9477214721b3511a18b780a04a081d
Name:	WinterGrab_alkalinity
Description:	This file contains alkalinity data for 46 of our 49 sites, determined using titration and expressed as micromole per kilogram.
Number of Records:	124
Number of Columns:	9

Table Structure

Object Name:

WinterGrab_alkalinity.csv

Size:

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Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

Alkalinity concentration in micromole per kilogram. ‘NA’s denote missing data.

Unit of Alkalinity concentration

Any notes related to the analysis of each sample or the results

Storage Type:

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float

string

float

string

Measurement Type:

nominal

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Measurement Values Domain:

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Definition

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Unit	meter
Type	real

Definition

text

Definition

text

Definition

text

Unit	micromole per kilogram
Type	real

Definition

text

Definition

text

Missing Value Code:

Code	NA
Expl	Missing data

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/9e44e745a457c5b792bcd08058599889
Name:	WinterGrab_bacterialproduction_rate
Description:	This file contains bacterial production rate data for water surface samples at 20 of our 49 sites. Bacterial production was determined using tritium-labeled methyl-thymidine and leucine incorporation and results are given for both, as either nmol thymidine (or leucine)/L/day or in units of ng Carbon/L/d.
Number of Records:	80
Number of Columns:	9

Table Structure

Object Name:

WinterGrab_bacterialproduction_rate.csv

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10225 byte

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Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Rep

Sample_Name

Value

Unit

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample: either bacterial production via leucine incorporation, expressed as either leucine incorporation rate (BP_Leucine_Incorporation) or as carbon production equivalents (BP_C_production_Leucine) or bacterial production via thymidine incorporation, expressed as either thymidine incorporation rate (BP_Thymidine_Incorporation) or as carbon production equivalents (BP_C_production_Thymidine).

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep above

Bacterial production rate expressed as nmol of thymidine or leucine incorporated per liter per day or as ng bacterial carbon produced per liter per day

Unit of bacterial production rate in nmol of thymidine or leucine incorporated per liter per day or as ng bacterial carbon produced per liter per day

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

nominal

ratio

nominal

ratio

nominal

Measurement Values Domain:

Definition

text

Definition

text

Unit	meter
Type	real

Definition

text

Definition

text

Definition

text

Unit	nmol of thymidine or leucine incorporated per liter per day or as ng bacterial carbon produced per liter per day
Type	real

Definition

text

Definition

text

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/939a3d7006440d9c9f12ff664004f61c
Name:	WinterGrab_chlA_concentration
Description:	This file contains chlorophyll a concentration results for 47 of our 49 sites. Chlorophyll a concentrations were determined by fluorimetry from acetone-extracted filters and are reported in micrograms/L.
Number of Records:	131
Number of Columns:	10

Table Structure

Object Name:

WinterGrab_chlA_concentration.csv

Size:

11700 byte

Authentication:

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Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

MDL_ug.L

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

mdl_ug.l

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

Chl a concentration in micrograms per liter

Unit of Chl a concentration

Minimum detection limit of Chl a concentration in micrograms per liter for the method used

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

nominal

ratio

nominal

ratio

nominal

Measurement Values Domain:

Definition

text

Definition

text

Unit	meter
Type	real

Definition

text

Definition

text

Definition

text

Unit	microgramPerLiter
Type	real

Definition

text

Definition

text

Definition

text

Missing Value Code:

Code	NA
Expl	Missing data

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/4005f706b8fcdbded9e23ae9837d0200
Name:	WinterGrab_chloride_concentration
Description:	This file contains chloride concentration results for 47 of our 49 sites. Chloride concentrations were determined by potentiometry and are reported as parts per million (ppm).
Number of Records:	96
Number of Columns:	9

Table Structure

Object Name:

WinterGrab_chloride_concentration.csv

Size:

8939 byte

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Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep above

Chloride concentration in micrograms per liter

Unit of Chloride concentration

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

nominal

ratio

nominal

ratio

nominal

Measurement Values Domain:

Definition

text

Definition

text

Unit	meter
Type	real

Definition

text

Definition

text

Definition

text

Unit	microgramPerLiter
Type	real

Definition

text

Definition

text

Missing Value Code:

Code	nd
Expl	sample cracked

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/59851407ee1d6f71ee37918218e2e425
Name:	WinterGrab_CTD_profiles
Description:	This file contains depth-resolved conductivity, temperature, and depth (CTD) sonde profile data for 16 of our 49 sites
Number of Records:	1892
Number of Columns:	13

Table Structure

Object Name:

WinterGrab_CTD_profiles.csv

Size:

229297 byte

Authentication:

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Simple Delimited:

Field Delimiter:	,
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Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Sample_name

Instrument

Temp_C

ODO_Perc_Sat

ODO_mg_L

Cond_µS_cm

TDS_mg_L

Chl_µg_L

Notes

Column Name:

pi_name

station

depth_m

analysis

sample_name

instrument

temp_c

odo_perc_sat

odo_mg_l

cond_µs_cm

tds_mg_l

chl_µg_l

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, and Analysis columns

Name of instrument used to measure various CTD parameters

Water temperature measured in Celcius

Dissolved oxygen concentration as percent saturation

Dissolved oxygen concentration in milligrams per liter

Conductivity measured in microsiemens per centimeter

Total dissolved solids measured in miligram per liter

Chl a concentration in micrograms per liter

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

nominal

ratio

nominal

ratio

nominal

Measurement Values Domain:

Definition

text

Definition

text

Unit	meter
Type	real

Definition

text

Definition

text

Definition

text

Unit	celsius
Type	real

Unit	percent saturation
Type	real

Unit	milligramPerLiter
Type	real

Unit	microsiemens per centimeter
Type	real

Unit	milligramPerLiter
Type	real

Unit	microgramPerLiter
Type	real

Definition

text

Missing Value Code:

Code	NA
Expl	Missing Data

Code	NA
Expl	Missing Data

Code	NA
Expl	Missing Data

Code	NA
Expl	Missing Data

Code	NA
Expl	Missing Data

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/379b647995acda64f942ef95de1873f3
Name:	WinterGrab_DOC_DOM_concentration
Description:	This file contains dissolved organic carbon (DOC) concentrations and several parameters characterizing dissolved organic matter (DOM) in water and ice samples from 27 (water) and 20 (ice) sites out of our 49 study sites.
Number of Records:	1200
Number of Columns:	9

Table Structure

Object Name:

WinterGrab_DOC_DOM_concentration.csv

Size:

94806 byte

Authentication:

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Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample. DOC: Dissolved organic carbon. Measure of the amount of organic matter that can pass through a 0.22 um filter (mg/L). SUVA254: Specific UV absorbance (254 mn). Higher values reflect greater carbon aromaticity or the number of aromatic rings per unit carbon (L/mg cm). SR: Spectral slope ratio. Higher values reflect lower molecular weight carbon and increased photobleaching (unitless). BA: Beta-alpha ratio. Higher values reflect a greater proportion of recently derived carbon (β) to highly decomposed carbon (α) (unitless). FI: Fluorescence index. Higher values (~1.9) reflect more microbial derived carbon and lower values (~1.4) reflect more terrestrial derived carbon (unitless). HIX: Humification index. Higher values indicate more humic carbon (unitless). C1: Parallel factors analysis component 1 (Williams et al., 2016; Williams and Xenopoulos 2023). Higher values (Fmax, raman units) or proportions (%) indicate more ubiquitous humic-like dissolved organic matter. C2: Parallel factors analysis component 2 (Williams et al., 2016; Williams and Xenopoulos 2023). Higher values (Fmax, raman units) or proportions (%) indicate more terrestrial humic like dissolved organic matter. C3: Parallel factors analysis component 3 (Williams et al., 2016; Williams and Xenopoulos 2023). Higher values (Fmax, raman units) or proportions (%) indicate more terrestrial humic like dissolved organic matter. C4: Parallel factors analysis component 4 (Williams et al., 2016;Williams and Xenopoulos 2023). Higher values (Fmax, raman units) or proportions (%) indicate more terrestrial soil fulvic-like dissolved organic matter. C5: Parallel factors analysis component 5 (Williams et al., 2016; Williams and Xenopoulos 2023). Higher values (Fmax, raman units) or proportions (%) indicate more microbial humic-like dissolved organic matter. C6: Parallel factors analysis component 6 (Williams et al., 2016; Williams and Xenopoulos 2023). Higher values (Fmax, raman units) or proportions (%) indicate more microbial humic-like dissolved organic matter. C7: Parallel factors analysis component 7 (Williams et al., 2016; Williams and Xenopoulos 2023). Higher values (Fmax, raman units) or proportions (%) indicate more microbial protein-like dissolved organic matter.

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

Concentrations of Dissolved Organic Carbon and value of Dissolved Organic Matter indices

Units of corresponding analysis, see analysis column definition for details. Four units were used in total: Fmax; mg.L; L.mg-cm; %.

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

nominal

ratio

nominal

ratio

nominal

Measurement Values Domain:

Definition

text

Definition

text

Unit	meter
Type	real

Definition

text

Definition

text

Definition

text

Unit	Fmax; mg.L; L.mg-cm; %
Type	real

Definition

text

Definition

text

Missing Value Code:

Code	Ice
Expl	Sample is from melted ice

Code	NA
Expl	Missing Data

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/c73d4353ad22c96b87788d94c153a520
Name:	WinterGrab_microbial_loop_abundance
Description:	This file contains abundances of microbial loop components (bacteria, picoplankton, nanoflagellates) determined by microscopy for 11 of our 49 sites, and expressed as cells/L
Number of Records:	14
Number of Columns:	14

Table Structure

Object Name:

WinterGrab_microbial_loop_abundance.csv

Size:

3466 byte

Authentication:

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Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

PI_name

Station

Depth_m

Rep

Analysis

Sample_name

Bacteria_cells_mL-1

Autotrophic_PicoPlankton_cells_mL-1

Heterotrophic_NanoFlagellates_cells_mL-1

Bacteria_mg_m-3

Autotrophic_PicoPlankton_mg_m-3

Heterotrophic_NanoFlagellates_mg_m-3

total_mg_m-3

Notes

Column Name:

pi_name

station

depth_m

rep

analysis

sample_name

bacteria_cells_ml-1

autotrophic_picoplankton_cells_ml-1

heterotrophic_nanoflagellates_cells_ml-1

bacteria_mg_m-3

autotrophic_picoplankton_mg_m-3

heterotrophic_nanoflagellates_mg_m-3

total_mg_m-3

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Replicate number

Type of analysis performed on the sample

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

Abundance of bacteria cell per milliliter

Abundance of Autotrophic PicoPlankton cells per milliliter

Abundance of Heterotrophic NanoFlagellates cells per milliliter

Abundance of bacteria cells as milligram per cubic meter

Abundance of Autotrophic PicoPlankton cells as milligram per cubic meter

Abundance of Heterotrophic NanoFlagellates cells as milligram per cubic meter

Abundance of microbial loop orgnisms as milligram per cubic meter

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

nominal

ratio

nominal

ratio

nominal

Measurement Values Domain:

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text

Definition

text

Unit	meter
Type	real

Definition

text

Definition

text

Definition

text

Unit	cell per milliliter
Type	real

Unit	cells per milliliter
Type	real

Unit	cells per milliliter
Type	real

Unit	milligram per cubic meter
Type	real

Unit	milligram per cubic meter
Type	real

Unit	milligram per cubic meter
Type	real

Unit	milligram per cubic meter
Type	real

Definition

text

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/1dd095445b683c5e8286132e6ed8a480
Name:	WinterGrab_microcystin_concentration
Description:	This file contains microcystin concentration data for 20 of our 49 sites, as determined by ELISA and expressed in µg/L.
Number of Records:	33
Number of Columns:	10

Table Structure

Object Name:

WinterGrab_microcystin_concentration.csv

Size:

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PI_name

Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

MDL_ug.L

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

mdl_ug.l

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

microcystin concentration in whole water in micrograms per liter

Unit of microcystin concentration

Minimum detection limit of NH4 concentration in micrograms per liter

Any notes related to the analysis of each sample or the results

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text

Unit	microgramPerLiter
Type	real

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text

Unit	microgramPerLiter
Type	real

Definition

text

Missing Value Code:

Code	<MDL
Expl	nondetection

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/702d98592a7fd9a34929f966cb86a0c8
Name:	WinterGrab_NH4_concentration
Description:	This file contains ammonia (NH4) concentration data from 46 of our 49 sampling sites, determined using the Alkaline phenate method and expressed in mg/L
Number of Records:	124
Number of Columns:	10

Table Structure

Object Name:

WinterGrab_NH4_concentration.csv

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Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

MDL_mg.L

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

mdl_mg.l

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

NH4 concentration in milligrams per liter

Unit of NH4 concentration

Minimum detection limit of NH4 concentration in milligrams per liter

Any notes related to the analysis of each sample or the results

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text

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Type	real

Definition

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Unit	milligramPerLiter
Type	real

Definition

text

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/901845481cfb70e7237b1548746b1300
Name:	WinterGrab_NO2_concentration
Description:	This file contains nitrite (NO2) concentration data for 46 of our 49 sampling sites, determined using cadmium coil reduction followed by sulfanilamide reaction and expressed in mg/L
Number of Records:	124
Number of Columns:	10

Table Structure

Object Name:

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Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

MDL_mg.L

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

mdl_mg.l

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

NO2 concentration in milligrams per liter

Unit of NO2 concentration

Minimum detection limit of NO2 concentration in milligrams per liter

Any notes related to the analysis of each sample or the results

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Type	real

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Unit	milligramPerLiter
Type	real

Definition

text

Missing Value Code:

Code	ND
Expl	No Data

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/d16a74ea0f939bd78ca0100d4a4f0343
Name:	WinterGrab_NO3_concentration
Description:	This file contains nitrate (NO3) concentration data for 46 of our 49 sampling sites, determined using cadmium coil reduction followed by sulfanilamide reaction and expressed in mg/L
Number of Records:	124
Number of Columns:	10

Table Structure

Object Name:

WinterGrab_NO3_concentration.csv

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10216 byte

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Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

MDL_mg.L

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

mdl_mg.l

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

NO3 concentration in milligrams per liter

Unit of NO3 concentration

Minimum detection limit of NO3 concentration in milligrams per liter

Any notes related to the analysis of each sample or the results

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Type	real

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Unit	milligramPerLiter
Type	real

Definition

text

Missing Value Code:

Code	ND
Expl	No Data

Code	wasnít enough sample
Expl	no data

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/affecf42cdecbafdc12bff03c378eec5
Name:	WinterGrab_PCPE_concentration
Description:	This file contains phycocyanin (PC) and phycoerythrin (PE) concentration for 21 of our 49 sampling sites. PC and PE concentrations were determined using spectrophotometery and expressed in ug/L
Number of Records:	70
Number of Columns:	9

Table Structure

Object Name:

WinterGrab_PCPE_concentration.csv

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5696 byte

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Table Column Descriptions

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Depth_m

Analysis

Rep

Sample_name

Value

Unit

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

Phycocyanin (PC) or phycoerythrin (PE) concentration in micrograms per liter

Unit of PC and PE concentration

Any notes related to the analysis of each sample or the results

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text

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/f68199037a0cb6c8937364d556776f97
Name:	WinterGrab_snow_ice_properties
Description:	This file contains information on ice and snow thickness and properties for 39 of our 49 sampling sites
Number of Records:	49
Number of Columns:	7

Table Structure

Object Name:

WinterGrab_snow_ice_properties-2.csv

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4853 byte

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Table Column Descriptions

PI_name

Station

Analysis

Sample_name

Ice_thick_m

Snow_thick_m

Notes

Column Name:

pi_name

station

analysis

sample_name

ice_thick_m

snow_thick_m

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Type of analysis performed on the sample

Unique identifier for each data record with a combination of PI_name, Station, and Analysis columns

Thickness of ice measured in meter

Thickness of snow measured in meter

Any notes related to the analysis of each sample or the results

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Expl	no data

Code	no data
Expl	no data

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/46287d14e0602358475cabe23323ffef
Name:	WinterGrab_TDP_concentration
Description:	This file contains total dissolved phosphorus (TDP) concentration data for 46 of our 49 sampling sites, determined by semi-automated colorimetry and expressed in micrograms/L.
Number of Records:	186
Number of Columns:	10

Table Structure

Object Name:

WinterGrab_TDP_concentration.csv

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14726 byte

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Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

MDL_ug.L

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

mdl_ug.l

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

Total Dissolved Phosphorus concentration in micrograms per liter

Unit of Total Dissolved Phosphorus concentration

Minimum detection limit of Total Dissolved Phosphorus concentration in micrograms per liter

Any notes related to the analysis of each sample or the results

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text

Unit	microgramPerLiter
Type	real

Definition

text

Missing Value Code:

Code	ND
Expl	No Data

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/664254ec92066f76c3c528cf3ccb7402
Name:	WinterGrab_TN_concentration
Description:	This file contains total nitrogen (TN) concentration data for 46 of our 49 sampling sites, determined using the colorimetric hydrazine method and expressed in milligrams/L.
Number of Records:	63
Number of Columns:	9

Table Structure

Object Name:

WinterGrab_TN_concentration.csv

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4653 byte

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Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

Total Dissolved Phosphorus concentration in milligrams per liter

Unit of Total Dissolved Nitrogen concentration

Any notes related to the analysis of each sample or the results

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text

Definition

text

Missing Value Code:

Code	na
Expl	Missing data

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/77b3fea192d1280455cc5606b6c3a451
Name:	WinterGrab_TP_concentration
Description:	This file contains total phosphorus (TP) concentration data for 48 of our 49 sampling sites, determined by semi-automated colorimetry and expressed in micrograms/L. Note: issues with calibration during analysis make these data unsuitable for comparison with TP data from other studies (see methods section for additional information).
Number of Records:	64
Number of Columns:	10

Table Structure

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PI_name

Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

MDL_ug.L

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

mdl_ug.l

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

Total Phosphorus concentration in micrograms per liter

Unit of Total Phosphorus concentration

Minimum detection limit of Total Phosphorus concentration in micrograms per liter

Any notes related to the analysis of each sample or the results

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text

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text

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Type	real

Definition

text

Unit	microgramPerLiter
Type	real

Definition

text

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/f53355301aca5f509aec069e018ab3ba
Name:	WinterGrab_microbial_flowcytometry_abundance
Description:	This file contains microbe abundance data for 44 of our 49 sampling sites, determined using flow cytometry and expressed in cells/L
Number of Records:	167
Number of Columns:	9

Table Structure

Object Name:

WinterGrab_microbial_flowcytometry_abundance.csv

Size:

15849 byte

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Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep above

Bacterial cells per milliliter

Unit of bacterial cells

Any notes related to the analysis of each sample or the results

Storage Type:

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float

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Definition

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Unit	cells per milliliter
Type	real

Definition

text

Definition

text

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/bcfad81dc872e033c96e3a48f1dac313
Name:	WinterGrab_light_transmission
Description:	This file contains light (photosynthetically active radiation - PAR) transmission data through ice and snow, PAR attenuation coefficients through the water column, and descriptions of the ice and snow conditions for 22 of our 49 sites.
Number of Records:	24
Number of Columns:	12

Table Structure

Object Name:

WinterGrab_light_transmission.csv

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4422 byte

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\r\n

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Simple Delimited:

Field Delimiter:	,
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Table Column Descriptions

PI_name

Station

Sample_name

PAR_sensor

Ice_thick_m

Snow_thick_profile_m

percent_trans_ice_snow

percent_trans_ice

Kd_water

Ice_narrative

Snow_narrative

Notes

Column Name:

pi_name

station

sample_name

par_sensor

ice_thick_m

snow_thick_profile_m

percent_trans_ice_snow

percent_trans_ice

kd_water

ice_narrative

snow_narrative

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Unique identifier for each data record with a combination of PI_name and Station columns

Name (manufacturer and model) of photosynthetically active radiation (PAR) sensor used for each site

Thickness of ice measured in meter

Snow thickness at light profile location

Percent of PAR transmitted through ice and snow cover at the site. ‘NA’ values are for location with no snow cover

Percent of PAR transmitted through ice cover at the site after clearing away the snow (if present)

The light attenuation coefficient for the water column at each site (in m-1)

Description of ice conditions at the site

Description of snow conditions at the site

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

Measurement Type:

nominal

ratio

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Measurement Values Domain:

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Definition

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Definition

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Definition

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Type	real

Unit	meter
Type	real

Unit	percent
Type	real

Unit	percent
Type	real

Unit	light attenuation coefficient for the water column at each site (in m-1)
Type	real

Definition

text

Definition

text

Definition

text

Missing Value Code:

Code	NA
Expl	Missing Data or Not Avalible

Code	NA
Expl	No ice cover

Code	NA
Expl	Missing Data or Not Available

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/37cfd8796d267519160bb1ca8914d1ae
Name:	WinterGrab_PPR
Description:	This file contains lab-based phytoplankton primary production rate (PPR) parameters from measurements performed on samples from 11 of our 49 study sites
Number of Records:	36
Number of Columns:	9

Table Structure

Object Name:

WinterGrab_PPR.csv

Size:

3567 byte

Authentication:

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column

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Field Delimiter:	,
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Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Rep

Sample_name

Value

Unit

Notes

Column Name:

pi_name

station

depth_m

analysis

rep

sample_name

value

unit

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Name of parameter determined in the measurements. Pmax is the maximum photosynthetic rate achieved under optimal light conditions; it is expressed as g C/g Chl a/hr. Alpha is the initial slope of the photosynthesis-irradiance curve; it is expressed as g C/g Chl a/hr/µmol quanta/m2. Beta is the photoinhibition parameter; it is expressed as g C/g Chl a/hr/µmol quanta/m2.

Replicate number

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, Analysis, and Rep columns

Lab-Based Phytoplankton Primary Production Rate in Pmax (g C/g Chl a/hr) or Alpha and Beta ([g C/g Chl a/hr]/[µmol quanta/m2/s])

Unit of lab-based phytoplankton primary production rate. Units include: "g C/g Chl a/hr" and "[g C/g Chl a/hr]/[µmol quanta/m2/s]". See "value" column descriptions for more detailed unit explainations.

Any notes related to the analysis of each sample or the results

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string

float

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Measurement Type:

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Measurement Values Domain:

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Definition

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Definition

text

Definition

text

Definition

text

Unit	Pmax (g C/g Chl a/hr); Alpha and Beta ([g C/g Chl a/hr]/[µmol quanta/m2/s])
Type	real

Definition

text

Definition

text

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/75a9cf47b47284a6f8ef250480449c10
Name:	WinterGrab_ciliated_protist_abundance
Description:	This file contains abundance data on ciliated protists for 24 of our 49 sampling sites, expressed in cells/mL. These data are in ‘long’ format.
Number of Records:	408
Number of Columns:	8

Table Structure

Object Name:

WinterGrab_ciliated_protist_abundance.csv

Size:

59923 byte

Authentication:

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Number of Header Lines:

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\r\n

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Field Delimiter:	,
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Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Sample_name

taxon

Count_cell_mL-1

Notes

Column Name:

pi_name

station

depth_m

analysis

sample_name

taxon

count_cell_ml-1

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, and Analysis columns

Name of taxon

Abundance of organism in cells/mL

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

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ratio

nominal

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Definition

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Unit	meter
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Definition

text

Definition

text

Definition

text

Unit	Count_cell_mL-1
Type	real

Definition

text

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/41b4dd733c987a5481dc839fbbf103ed
Name:	WinterGrab_particulate_cyanotoxins_concentration
Description:	This file contains data on particulate concentrations of 25 cyanotoxin metabolites for 19 of our 49 study sites. Concentrations were determined using liquid chromatography tandem mass spectrometry (LC-MS-MS) for material retained on filters, representing particulate metabolite concentrations, expressed in parts per billion. These data are in ‘long’ format.
Number of Records:	775
Number of Columns:	8

Table Structure

Object Name:

WinterGrab_particulate_cyanotoxins_concentration.csv

Size:

102510 byte

Authentication:

333982908d71f5ff473d28ccefb108bc Calculated By MD5

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Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Sample_name

Metabolite

concentration_ppb

Notes

Column Name:

pi_name

station

depth_m

analysis

sample_name

metabolite

concentration_ppb

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, and Analysis columns

Name of metabolite

Concentration of metabolite in ppb. ‘ND’ means ‘not detected’

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

nominal

ratio

nominal

ratio

nominal

Measurement Values Domain:

Definition

text

Definition

text

Unit	meter
Type	real

Definition

text

Definition

text

Definition

text

Unit	ppb
Type	real

Definition

text

Missing Value Code:

Code	ND
Expl	Not Detected

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/da14bc0f7ceed3d0b07d73e18f968c50
Name:	WinterGrab_wholewater_cyanotoxins_concentration
Description:	This file contains data on whole water concentrations of 25 cyanotoxin metabolites for 19 of our 49 study sites. Concentrations were determined using liquid chromatography tandem mass spectrometry (LC-MS-MS) for whole water samples, expressed in parts per billion. These data are in ‘long’ format.
Number of Records:	800
Number of Columns:	8

Table Structure

Object Name:

WinterGrab_wholewater_cyanotoxins_concentration.csv

Size:

104536 byte

Authentication:

3bea1477befd506c1a0776ff77a3da47 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Sample_name

Metabolite

concentration_ppb

Notes

Column Name:

pi_name

station

depth_m

analysis

sample_name

metabolite

concentration_ppb

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, and Analysis columns

Name of metabolite

Concentration of metabolite in ppb. ‘ND’ means ‘not detected’

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

nominal

ratio

nominal

ratio

nominal

Measurement Values Domain:

Definition

text

Definition

text

Unit	meter
Type	real

Definition

text

Definition

text

Definition

text

Unit	ppb
Type	real

Definition

text

Missing Value Code:

Code	ice
Expl	Sample is from melted ice

Code	ND
Expl	Not Detected

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/89b99b8a18cbe2c984179204638e3131
Name:	WinterGrab_phytoplankton_abundance_McKay
Description:	This file contains phytoplankton abundance data for 27 of our 49 sampling sites, determined by the McKay lab (University of Windsor) and expressed in cells/mL. These data are in ‘long’ format.
Number of Records:	1595
Number of Columns:	8

Table Structure

Object Name:

WinterGrab_phytoplankton_abundance_McKay.csv

Size:

191046 byte

Authentication:

e6804901c56c122c4bae06831ba1610b Calculated By MD5

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Number of Header Lines:

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column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Sample_name

taxon

Count_cell_mL-1

Notes

Column Name:

pi_name

station

depth_m

analysis

sample_name

taxon

count_cell_ml-1

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, and Analysis columns

Name of taxon

Abundance of taxon as cells per milliliter

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

nominal

ratio

nominal

ratio

nominal

Measurement Values Domain:

Definition

text

Definition

text

Unit	meter
Type	real

Definition

text

Definition

text

Definition

text

Unit	Count_cell_mL-1
Type	real

Definition

text

Missing Value Code:

Code	NA
Expl	Not Applicable

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/f98046702063defd7aaac0f111cab787
Name:	WinterGrab_phytoplankton_abundance_Munawar
Description:	This file contains phytoplankton abundance data for 27 of our 49 sampling sites, determined by the Munawar lab (Environment and Climate Change Canada) and expressed in cells/mL. These data are in ‘long’ format.
Number of Records:	1469
Number of Columns:	8

Table Structure

Object Name:

WinterGrab_phytoplankton_abundance_Munawar.csv

Size:

207386 byte

Authentication:

4844db910d9a8dc67996eadb35ee4084 Calculated By MD5

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column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Sample_name

taxon

Count_cell_L-1

Notes

Column Name:

pi_name

station

depth_m

analysis

sample_name

taxon

count_cell_l-1

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, and Analysis columns

Name of taxon

Abundance of taxon as cells per liter

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

nominal

ratio

nominal

ratio

nominal

Measurement Values Domain:

Definition

text

Definition

text

Unit	meter
Type	real

Definition

text

Definition

text

Definition

text

Unit	Count_cell_L-1
Type	real

Definition

text

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/c8a9a930bdbfdf3aeeca8d956c9d46a6
Name:	WinterGrab_phytoplankton_biomass_Munawar
Description:	This file contains phytoplankton biomass data for 13 of our 49 sampling sites, determined by the Munawar lab (Environment and Climate Change Canada) and expressed as milligrams wet weight per cubic meter. These data are in ‘long’ format.
Number of Records:	1469
Number of Columns:	8

Table Structure

Object Name:

WinterGrab_phytoplankton_biomass_Munawar.csv

Size:

191762 byte

Authentication:

2c88a32fd604d7d640882bff9ca50b5e Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

PI_name

Station

Depth_m

Analysis

Sample_name

taxon

Biomass_mg_m-3

Notes

Column Name:

pi_name

station

depth_m

analysis

sample_name

taxon

biomass_mg_m-3

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth where sample was taken in meters

Type of analysis performed on the sample

Unique identifier for each data record with a combination of PI_name, Station, Depth_m, and Analysis columns

Name of taxon

Biomass of taxon as milligrams wet weight per cubic meter

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

nominal

ratio

nominal

ratio

nominal

Measurement Values Domain:

Definition

text

Definition

text

Unit	meter
Type	real

Definition

text

Definition

text

Definition

text

Unit	Biomass_mg_m-3
Type	real

Definition

text

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/11e97ed56e4927d0ef4ae0d6f7284a75
Name:	WinterGrab_crustacean_zooplankton_abundance
Description:	This file contains crustacean zooplankton abundances for 12 of our 49 study sites, in ‘long’ format. Zooplankton abundance was determined by microscopy on zooplankton net tows. Abundances are expressed as individuals per liter.
Number of Records:	396
Number of Columns:	10

Table Structure

Object Name:

WinterGrab_crustacean_zooplankton_abundance.csv

Size:

58384 byte

Authentication:

94d1b7b33c23d44e21efc49a831b6c01 Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

PI_name

Station

Tow_depth_m

Net_diameter_m

Mesh_size_um

Analysis

Sample_name

taxon

count_L-1

Notes

Column Name:

pi_name

station

tow_depth_m

net_diameter_m

mesh_size_um

analysis

sample_name

taxon

count_l-1

notes

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Depth interval of the zooplankton tow, from surface (0) to max depth in meters.

Diameter of the opening of zooplankton net used, in meters

Mesh size of the zooplankton net used, in μm

Type of analysis performed on the sample

Unique identifier for each data record with a combination of PI_name, Station, Tow_depth_m, Analysis columns

Name of taxon

Abundance of taxon as individuals per liter

Any notes related to the analysis of each sample or the results

Storage Type:

string

float

string

float

string

Measurement Type:

nominal

ratio

nominal

ratio

nominal

Measurement Values Domain:

Definition

text

Definition

text

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	0-1
Definition	0 to 1 meter depth
Source

Code Definition

Code	0-17
Definition	0 to 17 meter depth
Source

Code Definition

Code	0-2.5
Definition	0 to 2.5 meter depth
Source

Code Definition

Code	0-30
Definition	0 to 30 meter depth
Source

Code Definition

Code	0-5
Definition	0 to 5 meter depth
Source

Code Definition

Code	0-7
Definition	0 to 7 meter depth
Source

Code Definition

Code	0-7.4
Definition	0 to 7.4 meter depth
Source

Code Definition

Code	0-8.5
Definition	0 to 8.5 meter depth
Source

Code Definition

Code	0-9
Definition	0 to 9 meter depth
Source

Unit	meter
Type	real

Unit	micrometer
Type	real

Definition

text

Definition

text

Definition

text

Unit	count_L-1
Type	real

Definition

text

Missing Value Code:

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/edi/1569/3/afafd2fc60f3a6b19126414e7f031990
Name:	WinterGrab_sites
Description:	Winter Grab sampling site metadata, water depth, ice thickness, and snow thickness. NA means no data.
Number of Records:	49
Number of Columns:	9

Table Structure

Object Name:

WinterGrab_sites.csv

Size:

4395 byte

Authentication:

a1776527f0d84f5b0e71a6c0175fd8ae Calculated By MD5

Text Format:

Number of Header Lines:

Record Delimiter:

\r\n

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

pi_name

station

longitude

latitude

sampling_dates

sampling_organization

water_depth

ice_thickness

snow_thickness

Column Name:

pi_name

station

longitude

latitude

sampling_dates

sampling_organization

water_depth

ice_thickness

snow_thickness

Definition:

Last name(s) of lead investigators

Unique alphanumeric identifier for a sampling location

Longitude of a sampling location in degrees

Sampling date for a sampling location

Sampling orgnization for a sampling location

Depth of water observed at a sampling location in meters

Ice thickness observed at a sampling location in meters

Snow thickness observed at a sampling location in meters

Storage Type:

string

float

string

float

Measurement Type:

nominal

ratio

nominal

ratio

Measurement Values Domain:

Definition

text

Definition

text

Unit	degree
Type	real

Unit	degree
Type	real

Definition

text

Definition

text

Definition

text

Unit	meter
Type	real

Unit	centimeter
Type	real

Missing Value Code:

Code	NA
Expl	No data

Code	NA
Expl	No data

Code	NA
Expl	No data

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Package Usage Rights

This information is released under the Creative Commons license - Attribution - CC BY (https://creativecommons.org/licenses/by/4.0/). The consumer of these data ("Data User" herein) is required to cite it appropriately in any publication that results from its use. The Data User should realize that these data may be actively used by others for ongoing research and that coordination may be necessary to prevent duplicate publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. Where appropriate, the Data User is encouraged to consider collaboration or co-authorship with the authors. The Data User should realize that misinterpretation of data may occur if used out of context of the original study. While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. All data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data. Thank you.

Keywords

By Thesaurus:
(No thesaurus)	Winter, Limnology, Biogeochemistry, Plankton, Microbes, Bacteria, Zooplankton, Team Science, Laurentian Great Lakes

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package

Description:

The Winter Grab study involved sampling at 49 locations across the Great Lakes. Samples were collected between Feb. 02, 2022 and March 10, 2022, with most sampling taking place in mid-February. Samples were collected from the ice, piers, and US and Canadian Coast Guard vessels. Sites ranged considerably in depth (1-93 m). Thirty two sites were ice-covered and 17 sites were ice-free. Sampling crews documented site conditions, including snow and ice cover, and measured light penetration at 22 locations. Water profiles were collected with CTD sondes, and water and plankton samples were taken from various depths for lab analysis. Samples were analyzed for water chemistry, pigments, cyanotoxins, and planktonic abundance and community composition. Microbial and primary production rate measurements were performed on some of the samples..

Phosphorus and nitrogen levels in water samples were analyzed using EPA methods, while alkalinity and chloride were measured via titration and ion selective electrode methods, respectively. Organic matter was characterized using spectrofluorometry, and chlorophyll, phycocyanin, and phycoerythrin concentrations were measured using fluorometry and spectrophotometry. We also measured microcystins and other cyanobacterial metabolites , using ELISA and liquid chromatography-mass spectrometry. Bacterial abundances were determined using flow cytometry. Phytoplankton, microzooplankton, and crustacean zooplankton abundance and community composition were assessed using microscopy. Bacterial and primary production rates were determined through radiolabeled isotope incorporation and photosynthesis-irradiance experiments.

Technical validation and quality assurance/control procedures were performed for all published data. Data outliers, accounting for less than 0.5% of all data, were removed based on visual inspection and expert judgment when errors were evident. Metadata consistency was maintained across all files, ensuring uniform use of Principal Investigators' names and sampling station names. The order of data columns was also standardized, following a consistent format: Principal Investigator name, sampling station, sample depth, sample names, parameter values, units, and notes.

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@edirepository.org

Web Address:

https://edirepository.org

Id:

https://ror.org/0330j0z60

Creators:

Individual:

Ge Pu

Organization:

Cleveland Water Alliance

Email Address:

jeff@clewa.org

Id:

https://orcid.org/0000-0002-0818-8795

Individual:

Ted Ozersky

Organization:

University of Minnesota Duluth

Email Address:

tozersky@d.umn.edu

Id:

https://orcid.org/0000-0002-1842-7745

Individual:

Andrew J Bramburger

Organization:

Environment and Climate Change Canada

Email Address:

andrew.bramburger@canada.ca

Id:

https://orcid.org/0000-0002-0925-9428

Individual:

Hunter J Carrick

Organization:

Central Michigan University

Email Address:

hunter.carrick@cmich.edu

Individual:

Justin D Chaffin

Organization:

The Ohio State University

Email Address:

chaffin.46@osu.edu

Id:

https://orcid.org/0000-0002-5372-4577

Individual:

Maureen L Coleman

Organization:

University of Chicago

Email Address:

mlcoleman@uchicago.edu

Id:

https://orcid.org/0000-0001-5065-0106

Individual:

Warren J. S. Currie

Organization:

Fisheries and Oceans Canada

Email Address:

warren.currie@dfo-mpo.gc.ca

Id:

https://orcid.org/0000-0001-7050-1802

Individual:

David C Depew

Organization:

Environment and Climate Change Canada

Email Address:

david.depew@ec.gc.ca

Individual:

Jonathan P Doubek

Organization:

Lake Superior State University

Email Address:

jdoubek@lssu.edu

Id:

https://orcid.org/0000-0003-2651-4715

Individual:

Rachel K Eveleth

Organization:

Oberlin College

Email Address:

reveleth@oberlin.edu

Id:

https://orcid.org/0000-0003-0556-4326

Individual:

Casey M Godwin

Organization:

University of Michigan

Email Address:

cgodwin@umich.edu

Id:

https://orcid.org/0000-0002-4454-7521

Individual:

R. Michael McKay

Organization:

University of Windsor

Email Address:

robert.mckay@uwindsor.ca

Id:

https://orcid.org/0000-0003-2723-5371

Individual:

Mohiuddin Munawar

Organization:

Fisheries and Oceans Canada

Email Address:

mohiuddin.munawar@dfo-mpo.gc.ca

Individual:

Nolan J. T. Pearce

Organization:

Trent University

Email Address:

nolanpearce@trentu.ca

Id:

https://orcid.org/0000-0001-6600-5275

Individual:

Michael D Rennie

Organization:

Lakehead University

Email Address:

mrennie@lakeheadu.ca

Id:

https://orcid.org/0000-0001-7533-4759

Individual:

Kirill Shchapov

Organization:

Cawthron Institute, Nelson, New Zealand

Email Address:

shapov89@gmail.com

Id:

https://orcid.org/0000-0001-6823-0927

Individual:

Michael R Twiss

Organization:

Algoma University

Email Address:

michael.twiss@algomau.ca

Id:

https://orcid.org/0000-0003-1042-917X

Individual:

Henry A Vanderploeg

Organization:

NOAA GLERL

Email Address:

henry.vanderploeg@noaa.gov

Id:

https://orcid.org/0000-0003-1358-8475

Individual:

Trista J Vick-Majors

Organization:

Michigan Technological University

Email Address:

tjvickma@mtu.edu

Id:

https://orcid.org/0000-0002-6868-4010

Individual:

Marguerite A Xenopoulos

Organization:

Trent University

Email Address:

mxenopoulos@trentu.ca

Id:

https://orcid.org/0000-0003-2307-948X

Individual:

Arthur Zastepa

Organization:

Environment and Climate Change Canada

Email Address:

arthur.zastepa@ec.gc.ca

Id:

https://orcid.org/0000-0003-1292-932X

Contacts:

Individual:

Ge Pu

Organization:

Cleveland Water Alliance

Email Address:

gpu100@syr.edu

Id:

https://orcid.org/0000-0002-0818-8795

Individual:

Ted Ozersky

Organization:

University of Minnesota Duluth

Email Address:

tozersky@d.umn.edu

Id:

https://orcid.org/0000-0002-1842-7745

Associated Parties:

Individual:

Kelly L Bowen

Organization:

Fisheries and Oceans Canada

Email Address:

kelly.bowen@dfo-mpo.gc.ca

Id:

https://orcid.org/0000-0002-7886-9262

Role:

Data Collector/Processor

Individual:

Andrew C Camilleri

Organization:

University of Michigan

Email Address:

accamill@umich.edu

Role:

Data Collector/Processor

Individual:

William R Cody

Email Address:

billcody@metalink.net

Role:

Data Collector/Processor

Individual:

Mark A. J. Fitzpatrick

Organization:

Fisheries and Oceans Canada

Email Address:

mark.fitzpatrick@dfo-mpo.gc.ca

Role:

Data Collector/Processor

Individual:

Paul W Glyshaw

Organization:

National Oceanic and Atmospheric Administration

Email Address:

paul.glyshaw@noaa.gov

Id:

https://orcid.org/0000-0003-1962-2021

Role:

Data Collector/Processor

Individual:

Heather A Niblock

Organization:

Fisheries and Oceans Canada

Email Address:

heather.niblock@dfo-mpo.gc.ca

Role:

Data Collector/Processor

Individual:

Maci E Quintanilla

Organization:

Michigan Technological University

Email Address:

mequinta@mtu.edu

Role:

Data Collector/Processor

Individual:

Westrick A Westrick

Organization:

Wayne State University

Email Address:

judy.westrick@wayne.edu

Id:

https://orcid.org/0000-0001-9112-5295

Role:

Data Collector/Processor

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period

Begin:

2022-02-04

End:

2022-03-10

Geographic Region:

Description:

Forty nine locations across all five of the Great Lakes (and some connecting waters) were sampled as part of Winter Grab. Sampling locations were chosen to represent a gradient of depths, trophic status, and ice cover conditions, while allowing for safe and reasonably easy access

Bounding Coordinates:

Northern:	49.095452	Southern:	41.112469
Western:	-92.416992	Eastern:	-74.333496

Project

Parent Project Information:

Title:

Great Lakes Winter Grab

Personnel:

Individual:

Ge Pu

Organization:

Cleveland Water Alliance

Email Address:

jeff@clewa.org

Id:

https://orcid.org/0000-0002-0818-8795

Role:

Data Manager, Data Lead, Data Checker

Individual:

Ted Ozersky

Organization:

University of Minnesota Duluth

Email Address:

tozersky@d.umn.edu

Id:

https://orcid.org/0000-0002-1842-7745

Role:

Project Lead, Data Manager, Data Creator, Data Checker

Individual:

Andrew J Bramburger

Organization:

Environment and Climate Change Canada

Email Address:

andrew.bramburger@canada.ca

Id:

https://orcid.org/0000-0002-0925-9428

Role:

Data Creator

Individual:

Hunter J Carrick

Organization:

Central Michigan University

Email Address:

hunter.carrick@cmich.edu

Role:

Data Creator

Individual:

Justin D Chaffin

Organization:

The Ohio State University

Email Address:

chaffin.46@osu.edu

Id:

https://orcid.org/0000-0002-5372-4577

Role:

Data Creator

Individual:

Maureen L Coleman

Organization:

University of Chicago

Email Address:

mlcoleman@uchicago.edu

Id:

https://orcid.org/0000-0001-5065-0106

Role:

Data Creator

Individual:

Warren J. S. Currie

Organization:

Fisheries and Oceans Canada

Email Address:

warren.currie@dfo-mpo.gc.ca

Id:

https://orcid.org/0000-0001-7050-1802

Role:

Data Creator

Individual:

David C Depew

Organization:

Environment and Climate Change Canada

Email Address:

david.depew@ec.gc.ca

Role:

Data Creator

Individual:

Jonathan P Doubek

Organization:

Lake Superior State University

Email Address:

jdoubek@lssu.edu

Id:

https://orcid.org/0000-0003-2651-4715

Role:

Data Creator

Individual:

Rachel K Eveleth

Organization:

Oberlin College

Email Address:

reveleth@oberlin.edu

Id:

https://orcid.org/0000-0003-0556-4326

Role:

Data Creator

Individual:

Casey M Godwin

Organization:

University of Michigan

Email Address:

cgodwin@umich.edu

Id:

https://orcid.org/0000-0002-4454-7521

Role:

Data Creator

Individual:

Robert M McKay

Organization:

University of Windsor

Email Address:

robert.mckay@uwindsor.ca

Id:

https://orcid.org/0000-0003-2723-5371

Role:

Data Creator

Individual:

Mohiuddin Munawar

Organization:

Fisheries and Oceans Canada

Email Address:

mohiuddin.munawar@dfo-mpo.gc.ca

Role:

Data Creator

Individual:

Nolan J. T. Pearce

Organization:

Trent University

Email Address:

nolanpearce@trentu.ca

Id:

https://orcid.org/0000-0001-6600-5275

Role:

Data Creator

Individual:

Michael D Rennie

Organization:

Lakehead University

Email Address:

mrennie@lakeheadu.ca

Id:

https://orcid.org/0000-0001-7533-4759

Role:

Data Creator

Individual:

Kirill Shchapov

Organization:

York University

Email Address:

shapov89@gmail.com

Id:

https://orcid.org/0000-0001-6823-0927

Role:

Data Creator, Data Checker

Individual:

Michael R Twiss

Organization:

Algoma University

Email Address:

michael.twiss@algomau.ca

Id:

https://orcid.org/0000-0003-1042-917X

Role:

Data Creator

Individual:

Henry A Vanderploeg

Organization:

NOAA GLERL

Email Address:

henry.vanderploeg@noaa.gov

Id:

https://orcid.org/0000-0003-1358-8475

Role:

Data Creator

Individual:

Trista J Vick-Majors

Organization:

Michigan Technological University

Email Address:

tjvickma@mtu.edu

Id:

https://orcid.org/0000-0002-6868-4010

Role:

Data Creator

Individual:

Marguerite A Xenopoulos

Organization:

Trent University

Email Address:

mxenopoulos@trentu.ca

Id:

https://orcid.org/0000-0003-2307-948X

Role:

Data Creator

Individual:

Arthur Zastepa

Organization:

Environment and Climate Change Canada

Email Address:

arthur.zastepa@ec.gc.ca

Id:

https://orcid.org/0000-0003-1292-932X

Role:

Data Creator

Individual:

Kelly L Bowen

Organization:

Fisheries and Oceans Canada

Email Address:

kelly.bowen@dfo-mpo.gc.ca

Id:

https://orcid.org/0000-0002-7886-9262

Role:

Data Collector/Processor

Individual:

Andrew C Camilleri

Organization:

University of Michigan

Email Address:

accamill@umich.edu

Role:

Data Collector/Processor

Individual:

William R Cody

Email Address:

billcody@metalink.net

Role:

Data Collector/Processor

Individual:

Mark A. J. Fitzpatrick

Organization:

Fisheries and Oceans Canada

Email Address:

mark.fitzpatrick@dfo-mpo.gc.ca

Role:

Data Collector/Processor

Individual:

Paul W Glyshaw

Organization:

National Oceanic and Atmospheric Administration

Email Address:

paul.glyshaw@noaa.gov

Id:

https://orcid.org/0000-0003-1962-2021

Role:

Data Collector/Processor

Individual:

Heather A Niblock

Organization:

Fisheries and Oceans Canada

Email Address:

heather.niblock@dfo-mpo.gc.ca

Role:

Data Collector/Processor

Individual:

Maci E Quintanilla

Organization:

Michigan Technological University

Email Address:

mequinta@mtu.edu

Role:

Data Collector/Processor

Individual:

Westrick A Westrick

Organization:

Wayne State University

Email Address:

judy.westrick@wayne.edu

Id:

https://orcid.org/0000-0001-9112-5295

Role:

Data Collector/Processor

Additional Award Information:

Funder:	Cooperative Institute for Great Lakes Research
Number:	No. 1226
Title:	Winter grab: a multi-institutional Great Lakes winter sampling campaign

Maintenance

Maintenance:

Description:	This data will be updated as required. Data collection period is finished.
Frequency:	asNeeded

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n      '
        |___element 'metadata'
        |     |___text '\n         '
        |     |___element 'unitList' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unitList')
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'micromole per kilogram'
        |     |     |     |  \___attribute 'name' = 'micromole per kilogram'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'nmol of thymidine or leucine incorporated per liter per day or as ng bacterial carbon produced per liter per day'
        |     |     |     |  \___attribute 'name' = 'nmol of thymidine or leucine incorporated per liter per day or as ng bacterial carbon produced per liter per day'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'percent saturation'
        |     |     |     |  \___attribute 'name' = 'percent saturation'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |     |___text 'Dissolved oxygen concentration as percent saturation'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'cells per milliliter'
        |     |     |     |  \___attribute 'name' = 'cells per milliliter'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |     |___text 'cells per milliliter'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'cell per milliliter'
        |     |     |     |  \___attribute 'name' = 'cell per milliliter'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |     |___text 'cell per milliliter'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'milligram per cubic meter'
        |     |     |     |  \___attribute 'name' = 'milligram per cubic meter'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |     |___text 'milligram per cubic meter'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'light attenuation coefficient for the water column at each site (in m-1)'
        |     |     |     |  \___attribute 'name' = 'light attenuation coefficient for the water column at each site (in m-1)'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |     |___text 'light attenuation coefficient for the water column at each site (in m-1)'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'count_L-1'
        |     |     |     |  \___attribute 'name' = 'count_L-1'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |     |___text 'Abundance of taxon as individuals per liter'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'Count_cell_mL-1'
        |     |     |     |  \___attribute 'name' = 'Count_cell_mL-1'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |     |___text 'Abundance of taxon as cells per milliliter'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'Count_cell_L-1'
        |     |     |     |  \___attribute 'name' = 'Count_cell_L-1'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |     |___text 'Abundance of taxon as cells per liter'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'Biomass_mg_m-3'
        |     |     |     |  \___attribute 'name' = 'Biomass_mg_m-3'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |     |___text 'Biomass of taxon as milligrams wet weight per cubic meter'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'ppb'
        |     |     |     |  \___attribute 'name' = 'ppb'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |     |___text 'Parts per billion'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'microsiemens per centimeter'
        |     |     |     |  \___attribute 'name' = 'microsiemens per centimeter'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |     |___text 'Conductivity measured in microsiemens per centimeter'
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'Fmax; mg.L; L.mg-cm; %'
        |     |     |     |  \___attribute 'name' = 'Fmax; mg.L; L.mg-cm; %'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |___text '\n            '
        |     |     |___text '\n            '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'Pmax (g C/g Chl a/hr); Alpha and Beta ([g C/g Chl a/hr]/[µmol quanta/m2/s])'
        |     |     |     |  \___attribute 'name' = 'Pmax (g C/g Chl a/hr); Alpha and Beta ([g C/g Chl a/hr]/[µmol quanta/m2/s])'
        |     |     |     |___text '\n               '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.2' ('stmml:description')
        |     |     |     |     |___text 'Pmax (g C/g Chl a/hr) is a measure of the maximum photosynthetic potential or productivity rate that can be achieved per unit of chlorophyll a, typically under optimal conditions. This parameter is crucial for comparing the productivity efficiency of different phytoplankton communities or under varying environmental conditions. Alpha (α) is the initial slope of the Photosynthesis-Irradiance (P-I) curve at low light intensities. It represents the photosynthetic efficiency of phytoplankton under low light conditions. A higher α value indicates that phytoplankton are more efficient at utilizing low levels of light for photosynthesis. It reflects the ability of the photosynthetic apparatus to convert light into chemical energy (carbon fixation) when light is not limiting. The unit [g C/g Chl a/hr]/[µmol quanta/m²/s] is often used to express α, as it normalizes the rate of carbon fixation to both chlorophyll content and light intensity. Alpha (α) represents the efficiency of photosynthesis at low light levels, reflecting the organism\'s ability to capitalize on available light. Beta (β) describes the rate of photoinhibition, or the decrease in photosynthetic rate, at very high light intensities. It represents the decline in photosynthetic activity when light becomes excessive and potentially damaging. A higher β value indicates greater sensitivity to photoinhibition, meaning that the phytoplankton’s photosynthesis decreases more sharply under high light intensity. Conversely, a lower β suggests that the phytoplankton are more tolerant to high light conditions. Beta (β) captures the decrease in photosynthesis under excessive light, indicating how well the organism copes with high light stress.'
        |     |     |     |___text '\n            '
        |     |     |___text '\n         '
        |     |___text '\n      '
        |___text '\n   '

Additional Metadata

additionalMetadata
        |___text '\n      '
        |___element 'metadata'
        |     |___text '\n         '
        |     |___element 'emlEditor'
        |     |        \___attribute 'app' = 'ezEML'
        |     |        \___attribute 'release' = '2024.09.18'
        |     |___text '\n      '
        |___text '\n   '

Copyright 2024 Environmental Data Initiative. This material is based upon work supported by the National Science Foundation under grants #2223103 and #2223104. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. Please contact us with questions, comments, or for technical assistance regarding this web site or the Environmental Data Initiative. Please read our privacy policy to know what information we collect about you and to understand your privacy rights.

EDI is a collaboration between the University of New Mexico and the University of Wisconsin – Madison, Center for Limnology:

Data Package Metadata View Summary

Data Package for the 2022 Great Lakes Winter Grab

+/- Data Entities

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+/- Data Package Usage Rights

+/- Keywords

+/- Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

+/- Additional Metadata

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata

Additional Metadata