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Ambient nutrients, carbon, and DOM absorbance metrics along with experimental dissolved oxygen decay rates for 5-day incubations of water within the Waccamaw River Watershed, SC, Summer 2020.

General Information
Data Package:
Local Identifier:edi.1284.1
Title:Ambient nutrients, carbon, and DOM absorbance metrics along with experimental dissolved oxygen decay rates for 5-day incubations of water within the Waccamaw River Watershed, SC, Summer 2020.
Alternate Identifier:DOI PLACE HOLDER
Abstract:

Dissolved oxygen (DO) impairment within coastal waters is widespread. Rising temperatures may exacerbate low DO levels by enhancing organic matter (OM) degradation. Here, the temperature sensitivity of OM degradation was investigated as DO decay rates determined during standard five-day biochemical oxygen demand (BOD) measurements conducted under different incubation temperatures. Sampling was conducted in the Waccamaw River watershed, South Carolina, a blackwater river with extensive forested wetland that also receives drainage from stormwater detention ponds associated with coastal development, thus providing contrasting sources of OM composition. Temperature sensitivities were measured as Q10 temperature coefficients, which define how DO decay rates change with 10 degrees of warming. The average Q10 value for the wetland sites (2.14 ± 0.41) was significantly greater (p = 0.004) than those measured in either the river (1.49 ± 0.36) or stormwater ponds (1.41 ± 0.21). Furthermore, using Intergovernmental Panel on Climate Change intermediate-to-very high temperature estimates for 2100 of +2.7 – 4.4 °C, average predicted increases in DO decay rates for wetlands (~22-39 %) are more than double the River (~11-18 %) and stormwater pond rates (~9-16 %). Our findings for inland, coastal waters agree with previous results for soils, suggesting that temperature sensitivities are variable across sites and increase with more complex, lower quality OM. Future modeling scenarios of DO utilization must therefore consider the influence of OM heterogeneity and the temperature sensitivity response of OM degradation across sources and region to better predict how climate change may impact oxygen impairment in aquatic ecosystems.

Publication Date:2022-12-22
For more information:
Visit: DOI PLACE HOLDER

Time Period
Begin:
2020-07-05
End:
2020-08-05

People and Organizations
Contact:Szewczyk, Curtis J (University of South Carolina, Graduate Assistant) [  email ]
Contact:Benitez-Nelson, Claudia (University of South Carolina, Distinguished Professor & Associate Dean for Instruction, Community Engagement, and Research) [  email ]
Contact:Smith, Erik (North Inlet-Winyah Bay National Estuarine Research Reserve, Reserve Manager) [  email ]
Creator:Szewczyk, Curtis J (University of South Carolina, Graduate Assistant)
Creator:Benitez-Nelson, Claudia (University of South Carolina, Distinguished Professor & Associate Dean for Instruction, Community Engagement, and Research)
Creator:Smith, Erik (North Inlet-Winyah Bay National Estuarine Research Reserve, Reserve Manager)

Data Entities
Data Table Name:
Waccamaw_2020_Incubation_Study
Description:
Within this data table contains ambient conditions of a range of parameters (nutrients, carbon, absorbance spectra, etc.) from samples collected within various sites found in the watershed of the Waccamaw River, SC in the summer of 2020. Included in the data table are calculated dissolved oxygen decay rates from three experimental incubation temperatures (20, 27.5, and 35 degrees C) and the actual temperatures for each of these three regimes. Lastly, the calculated Q10 temperature coefficient is displayed for each temperature range.
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/edi/1284/1/b1e7f299c8d0cb4012ddfa68beb4e9d8
Name:Waccamaw_2020_Incubation_Study
Description:Within this data table contains ambient conditions of a range of parameters (nutrients, carbon, absorbance spectra, etc.) from samples collected within various sites found in the watershed of the Waccamaw River, SC in the summer of 2020. Included in the data table are calculated dissolved oxygen decay rates from three experimental incubation temperatures (20, 27.5, and 35 degrees C) and the actual temperatures for each of these three regimes. Lastly, the calculated Q10 temperature coefficient is displayed for each temperature range.
Number of Records:19
Number of Columns:26

Table Structure
Object Name:Waccamaw_2020_Incubation_Study.csv
Size:4016 byte
Authentication:1220672af144867f4880d901849092fb Calculated By MD5
Text Format:
Number of Header Lines:1
Record Delimiter:\r\n
Orientation:column
Simple Delimited:
Field Delimiter:,
Quote Character:"

Table Column Descriptions
 Sample IDStation TypeCollection DateLatitudeLongitudeParticulate Carbon (uM)Particulate Nitrogen (uM)Total Particulate Phosphorus (uM)Particulate Inorganic Phosphorus (uM)Dissolved Organic Carbon (uM)Total Dissolved Nitrogen (uM)Total Dissolved Phosphorus (uM)Chlorophyll-a (ug L-1)a355 (m-1)SUVA254 (L mg-1 m-1)a254/a436E2/E3BOD5 (mg L-1)DO Decay at 20°C (d-1)DO Decay at 27.5°C (d-1)DO Decay at 35°C (d-1)Actual 20°C Incubation Temperature (°C)Actual 27.5°C Incubation Temperature (°C)Actual 35°C Incubation Temperature (°C)Q10 (20.0 to 27.5 °C)Q10 (27.5 to 35.0 °C)
Column Name:Sample ID  
Station Type  
Collection Date  
Latitude  
Longitude  
Particulate Carbon (uM)  
Particulate Nitrogen (uM)  
Total Particulate Phosphorus (uM)  
Particulate Inorganic Phosphorus (uM)  
Dissolved Organic Carbon (uM)  
Total Dissolved Nitrogen (uM)  
Total Dissolved Phosphorus (uM)  
Chlorophyll-a (ug L-1)  
a355 (m-1)  
SUVA254 (L mg-1 m-1)  
a254/a436  
E2/E3  
BOD5 (mg L-1)  
DO Decay at 20°C (d-1)  
DO Decay at 27.5°C (d-1)  
DO Decay at 35°C (d-1)  
Actual 20°C Incubation Temperature (°C)  
Actual 27.5°C Incubation Temperature (°C)  
Actual 35°C Incubation Temperature (°C)  
Q10 (20.0 to 27.5 °C)  
Q10 (27.5 to 35.0 °C)  
Definition:"Sample ID" is the assigned name of each unique sample collection, and combines the station type and date of collection (e.g., F = Forest, 0705 = July 5)."Station Type" is the type of station that the sample was collected from within our defined station types: Waccamaw River, stormwater detention ponds, or forested wetlands."Collection Date" is the date of original sample collection from the field. Samples were collected in 20 liter carboys."Latitude" is the latitudinal coordinate of the sampling location."Longitude" is the longitudinal coordinate of the sampling location."Particulate Carbon" displays the concentration of particulate carbon within our ambient collected water sample."Particulate Nitrogen" displays the concentration of particulate nitrogen within our ambient collected water sample."Total Particulate Phosphorus" displays the total concentration of particulate phosphorus within our ambient collected water sample."Particulate Inorganic Phosphorus" displays the concentration of particulate inorganic phosphorus within our ambient collected water sample."Dissolved Organic Carbon" displays the concentration of dissolved organic carbon within our ambient collected water sample."Total Dissolved Nitrogen" displays the total concentration of dissolved nitrogen within our ambient collected water sample."Total Dissolved Phosphorus" displays the total concentration of dissolved phosphorus within our ambient collected water sample."Chlorophyll-a" displays the concentration of chlorophyll-a within our ambient collected water sample."a355" is the absorption coefficient at 355 nm of the dissolved organic matter from the ambient collected water sample."SUVA254" is the absorption coefficient at 254 nm of the dissolved organic matter from the ambient collected water sample normalized to DOC concentration in mg/L."a254/a436" is the ratio of absorption coefficients at 254 and 436 nm of the dissolved organic matter from the ambient collected water sample."E2/E3" is the ratio of absorption coefficients at 250 and 365 nm of the dissolved organic matter from the ambient collected water sample."BOD5" is the biochemical oxygen demand after five days for our ambient collected water sample."DO Decay at 20°C" is the 5-day dissolved oxygen decay rate of collected sample water incubated at 20°C. Decay rate was calculated via exponential decay curve fit."DO Decay at 27.5°C" is the 5-day dissolved oxygen decay rate of collected sample water incubated at 27.5°C. Decay rate was calculated via exponential decay curve fit."DO Decay at 35°C" is the 5-day dissolved oxygen decay rate of collected sample water incubated at 35°C. Decay rate was calculated via exponential decay curve fit."Actual 20°C Incubation Temperature" is the truly realized temperature of the incubator upon sample measurement within our designated 20°C incubator."Actual 27.5°C Incubation Temperature" is the truly realized temperature of the incubator upon sample measurement within our designated 27.5°C incubator."Actual 35°C Incubation Temperature" is the truly realized temperature of the incubator upon sample measurement within our designated 35°C incubator."Q10 (20.0 to 27.5 °C)" is the calculated Q10 temperature coefficient for the collected sample water between the actual temperatures for our 20 and 27.5°C treatments. Displays how a rate changes with 10 degrees of warming."Q10 (27.5 to 35.0 °C)" is the calculated Q10 temperature coefficient for the collected sample water between the actual temperatures for our 27.5 and 35.0°C treatments. Displays how a rate changes with 10 degrees of warming.
Storage Type:string  
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Measurement Type:nominalnominaldateTimenominalnominalratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratioratio
Measurement Values Domain:
Definition"Sample ID" is the assigned name of each unique sample collection, and combines the station type and date of collection (e.g., F = Forest, 0705 = July 5).
Allowed Values and Definitions
Enumerated Domain 
Code Definition
CodeForest Wetland
DefinitionForested wetland
Source
Code Definition
CodePond
DefinitionStormwater detention pond
Source
Code Definition
CodeRiver
DefinitionWaccamaw River proper
Source
FormatYYYY-MM-DD
Precision
Definition"Latitude" is the latitudinal coordinate of the sampling location.
Definition"Longitude" is the longitudinal coordinate of the sampling location.
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
UnitmicromolePerLiter
Typereal
UnitmicrogramPerLiter
Typereal
Unitpermeter
Typereal
UnitlitersPerMilligramPerMeter
Typereal
Unitnone
Typereal
Unitnone
Typereal
UnitmilligramPerLiter
Typereal
Unitperday
Typereal
Unitperday
Typereal
Unitperday
Typereal
Unitcelsius
Typereal
Unitcelsius
Typereal
Unitcelsius
Typereal
Unitnone
Typereal
Unitnone
Typereal
Missing Value Code:                                                    
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:
LTER Controlled Vocabularydissolved oxygen, organic matter, climate change
(No thesaurus)degradation, Q10 temperature coefficient, temperature sensitivity

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:

Whole and filtered nutrient concentration analysis.

Instrument(s):SEAL Analytical AA3 nutrient auto analyzer
Description:

DOC determination via high-temperature combustion.

Instrument(s):TOC_VCPN Shimadzu Analyzer
Description:

Dissolved organic matter (DOM) absorbance spectra measurements

Instrument(s):Shimadzu UV-2450 UV-Vis dual-beam spectrophotometer
Description:

Chlorophyll-a fluorometric determination.

Instrument(s):Turner Trilogy laboratory fluorometer
Description:

Particulate nitrogen/carbon analysis

Instrument(s):PerkinElmer Series II CHNS/O Analyzer 2400
Description:

TPP/PIP ash/hydrolysis method

Instrument(s):Beckman Coulter DU 640 UV Vis
Description:

Dissolved oxygen incubation concentration (repeated measurements for 5 days)

Instrument(s):Wiltrox 1 chemiluminescent oxygen meter for mini sensors

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: Curtis J Szewczyk
Organization:University of South Carolina
Position:Graduate Assistant
Email Address:
curtis.szewczyk@gmail.com
Id:https://orcid.org/0000-0003-4110-2882
Individual: Claudia Benitez-Nelson
Organization:University of South Carolina
Position:Distinguished Professor & Associate Dean for Instruction, Community Engagement, and Research
Email Address:
cbnelson@geol.sc.edu
Id:https://orcid.org/0000-0002-1004-5048
Individual: Erik Smith
Organization:North Inlet-Winyah Bay National Estuarine Research Reserve
Position:Reserve Manager
Email Address:
erik@baruch.sc.edu
Contacts:
Individual: Curtis J Szewczyk
Organization:University of South Carolina
Position:Graduate Assistant
Email Address:
curtis.szewczyk@gmail.com
Id:https://orcid.org/0000-0003-4110-2882
Individual: Claudia Benitez-Nelson
Organization:University of South Carolina
Position:Distinguished Professor & Associate Dean for Instruction, Community Engagement, and Research
Email Address:
cbnelson@geol.sc.edu
Id:https://orcid.org/0000-0002-1004-5048
Individual: Erik Smith
Organization:North Inlet-Winyah Bay National Estuarine Research Reserve
Position:Reserve Manager
Email Address:
erik@baruch.sc.edu

Temporal, Geographic and Taxonomic Coverage

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

Time Period
Begin:
2020-07-05
End:
2020-08-05
Geographic Region:
Description:The study region was within the lower neck of the Waccamaw River watershed, SC.
Bounding Coordinates:
Northern:  34.0Southern:  33.0
Western:  -79.5Eastern:  -78.5

Project

Parent Project Information:

Title:Temperature sensitivity of oxygen demand varies as a function of organic matter source
Personnel:
Individual: Curtis Szewczyk
Organization:University of South Carolina
Position:Graduate Assistant
Email Address:
curtis.szewczyk@gmail.com
Id:https://orcid.org/0000-0003-4110-2882
Role:M.S. Graduate Student
Individual: Claudia Benitez-Nelson
Organization:University of South Carolina
Position:Distinguished Professor & Associate Dean for Instruction, Community Engagement, and Research
Email Address:
cbnelson@geol.sc.edu
Id:https://orcid.org/0000-0002-1004-5048
Role:Co-Principal Investigator
Individual: Erik Smith
Organization:North Inlet-Winyah Bay National Estuarine Research Reserve
Position:Reserve Manager
Email Address:
erik@baruch.sc.edu
Role:Co-Principal Investigator
Abstract:

Dissolved oxygen (DO) impairment within coastal waters is widespread. Rising temperatures may exacerbate low DO levels by enhancing organic matter (OM) degradation. Here, the temperature sensitivity of OM degradation was investigated as DO decay rates determined during standard five-day biochemical oxygen demand (BOD) measurements conducted under different incubation temperatures. Sampling was conducted in the Waccamaw River watershed, South Carolina, a blackwater river with extensive forested wetland that also receives drainage from stormwater detention ponds associated with coastal development, thus providing contrasting sources of OM composition. Temperature sensitivities were measured as Q10 temperature coefficients, which define how DO decay rates change with 10 degrees of warming. The average Q10 value for the wetland sites (2.14 ± 0.41) was significantly greater (p = 0.004) than those measured in either the river (1.49 ± 0.36) or stormwater ponds (1.41 ± 0.21). Furthermore, using Intergovernmental Panel on Climate Change intermediate-to-very high temperature estimates for 2100 of +2.7 – 4.4 °C, average predicted increases in DO decay rates for wetlands (~22-39 %) are more than double the River (~11-18 %) and stormwater pond rates (~9-16 %). Our findings for inland, coastal waters agree with previous results for soils, suggesting that temperature sensitivities are variable across sites and increase with more complex, lower quality OM. Future modeling scenarios of DO utilization must therefore consider the influence of OM heterogeneity and the temperature sensitivity response of OM degradation across sources and region to better predict how climate change may impact oxygen impairment in aquatic ecosystems.

Maintenance

Maintenance:
Description:

No ongoing data collection for this study.

Frequency:notPlanned
Other Metadata

Additional Metadata

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Additional Metadata

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