Data Package Metadata View Summary

MCR LTER: Coral Reef: Macroalgal CHN, ongoing since 2005

General Information

Data Package:

Local Identifier:

knb-lter-mcr.20.21

Title:

MCR LTER: Coral Reef: Macroalgal CHN, ongoing since 2005

Alternate Identifier:

knb-lter-mcr.20

Alternate Identifier:

DOI PLACE HOLDER

Abstract:

Samples of two common macroalgal species (Sargassum mangarevense, Turbinaria ornata) are collected yearly from fringing, backreef, and reef crest sites at each of the sites (LTER 1 through LTER 6) around Moorea. CHN analyses of dried, ground samples of each individual are made using standard methods.

CHN data are used to track sustained variation in nutrient availability. Water column nutrients in coral reef systems usually are low to undetectable and their inputs tend to be episodic and ephemeral. Using CHN contents of macroalgae allows the integration of nitrogen availability over a longer time period, in this case, over approximately 3 months.

This material is based upon work supported by the U.S. National Science Foundation under Grant No. OCE 22-24354 (and earlier awards) as well as a generous gift from the Gordon and Betty Moore Foundation. Research was completed under permits issued by the French Polynesian Government (Délégation à la Recherche) and the Haut-commissariat de la République en Polynésie Francaise (DTRT) (Protocole d'Accueil 2005-2023). This work represents a contribution of the Moorea Coral Reef (MCR) LTER Site.

Short Name:

Macroalgal CHN

Publication Date:

2023-07-13

Language:

english

For more information:
Visit:	http://mcr.lternet.edu/data/
Visit:	https://doi.org/10.6073/pasta/bf1ea87590e7e39bfc25c0a983bd4d79
Visit:	https://doi.org/10.6073/pasta/8bbe978e8afbc9820627c665dfd81471
Visit:	https://doi.org/10.6073/pasta/b30a934d431ea41a7d82b5e5dc99d592
Visit:	DOI PLACE HOLDER

Time Period

Begin:

2005

End:

2022

People and Organizations
Contact:	Information Manager (Moorea Coral Reef LTER) [ email ]
Organization:	Moorea Coral Reef LTER
Creator:	Carpenter, Robert (Moorea Coral Reef LTER)
Associate:	Scafidi, Kathryn (Moorea Coral Reef LTER, Field Technician, Field Technician)
Associate:	Adam, Tom (Moorea Coral Reef LTER, Associate Investigator, Investigator)
Associate:	Gallagher, Jordan (Moorea Coral Reef LTER, Graduate Research Assistant, Graduate Research Assistant)

Data Entities
Data Table Name:	Macroalgal CHN
Description:	Yearly macroalgae results from CHN Organic Elemental Analyzer as weight percent of C, H, and N for given dry mass.

Detailed Metadata

Data Entities

Data Table


Data:	https://pasta-s.lternet.edu/package/data/eml/knb-lter-mcr/20/21/db4e317f367d330f963b4cc7a00fb451
Name:	Macroalgal CHN
Description:	Yearly macroalgae results from CHN Organic Elemental Analyzer as weight percent of C, H, and N for given dry mass.
Additional Info:	This data table is in comma-separated-value format. It can be read by Excel or any text editor.
Number of Records:	2899
Number of Columns:	10

Table Structure

Object Name:

MCR_LTER_Macroalgal_CHN_2005_to_2022_20230713.csv

Size:

176498 byte

Authentication:

f82be9a297ed8f3616b7ea50766ce71c Calculated By MD5

Character Encoding:

ASCII

Text Format:

Number of Header Lines:

Number of Foot Lines:

Record Delimiter:

Orientation:

column

Simple Delimited:

Field Delimiter:	,
Quote Character:	"

Table Column Descriptions

Year

Site Location

Habitat

Taxonomy

Sample wt (μg)

C %

H %

N %

C/N Ratio

Comment

Column Name:

Year

Site

Habitat

Genus

Dry_Weight

CN_ratio

Comment

Definition:

Calendar year of sample collection in YYYY format.

Name of the site, one of LTER 1 through LTER 6.

Name of the habitat, one of Fringe, Back Reef, or Reef Crest.

Taxonomic genus of the macro algae species, either Sargassum for S. mangarevense or Turbinaria for T. ornata.

Mass of the dried sample in micrograms.

Weight percent of carbon in the sample.

Weight percent of hydrogen in the sample.

Weight percent of nitrogen in the sample.

Carbon to nitrogen ratio of the sample by weight.

Explanation of data

Storage Type:

integer

string

float

string

Measurement Type:

dateTime

nominal

ratio

nominal

Measurement Values Domain:

Format	YYYY
Precision	1

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	LTER 1
Definition	LTER 1 is on the north shore
Source

Code Definition

Code	LTER 2
Definition	LTER 2 is on the north shore
Source

Code Definition

Code	LTER 3
Definition	LTER 3 is on the southeast shore
Source

Code Definition

Code	LTER 4
Definition	LTER 4 is on the southeast shore
Source

Code Definition

Code	LTER 5
Definition	LTER 5 is on the southwest shore
Source

Code Definition

Code	LTER 6
Definition	LTER 6 is on the southwest shore
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	Back Reef
Definition	Backreef
Source

Code Definition

Code	Fringe
Definition	Fringing Reef
Source

Code Definition

Code	Reef Crest
Definition	Reef Crest
Source

Allowed Values and Definitions

Enumerated Domain

Code Definition

Code	Sargassum
Definition	Sargassum mangarevense
Source

Code Definition

Code	Turbinaria
Definition	Turbinaria ornata
Source

Unit	microgram
Precision	1
Type	real

Unit	percent
Precision	0.01
Type	real

Unit	percent
Precision	0.01
Type	real

Unit	percent
Precision	0.01
Type	real

Unit	dimensionless
Precision	0.1
Type	real

Definition

text

Missing Value Code:

Code	NA
Expl	no measurement collected at this point, or not available

Code	NA
Expl	value not recorded or not available

Code	NA
Expl	value not recorded or not available

Code	NA
Expl	value not recorded or not available

Code	NA
Expl	value not recorded or not available

Code	NA
Expl	No note

Accuracy Report:

Accuracy Assessment:

Coverage:

Methods:

Data Package Usage Rights

This data package is released under the Creative Commons license Attribution 4.0 International (CC BY 4.0 , see https://creativecommons.org/licenses/by/4.0/). This license states that consumers ("Data Users" herein) may distribute, adapt, reuse, remix, and build upon this work, as long as they give appropriate credit, provide a link to the license, and indicate if changes were made. If redistributed, a Data User may not apply additional restrictions or technological measures that prevent access.

The Data User has an ethical obligation to cite the data source appropriately in any publication or product that results from its use, and notify the data contact or creator. Communication, collaboration, or co-authorship (as appropriate) with the creators of this data package is encouraged to prevent duplicate research or publication. The Data User is urged to contact the authors of these data if any questions about methodology or results occur. 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 duplication or inappropriate use. The Data User should realize that misinterpretation may occur if data are used outside of the context of the original study. The Data User should be aware that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data.

While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed. This data package (with its components) is made available "as is" and with no warranty of accuracy or fitness for use. The creators of this data package and the repository where these data were obtained shall not be liable for any damages resulting from misinterpretation, use or misuse of the data package or its components.

Keywords

By Thesaurus:
(No thesaurus)	LTER, MCR, Moorea Coral Reef
Institute, Organization, or Funding Agency	California State University Northridge, Gordon and Betty Moore Foundation, NSF, Richard B. Gump South Pacific Research Station, University of California Santa Barbara
(No thesaurus)	French Polynesia, Moorea
(No thesaurus)	Sargassum mangarevense, Turbinaria ornata
NBII Biocomplexity Thesaurus	Algae, Carbon, Carbon/nitrogen ratio, Coral Reefs, Nitrogen
LTER Network Controlled Vocabulary	carbon to nitrogen ratio, macroalgae, nitrogen content
LTER Core Research Area	Inorganic Nutrients
MCR Core Activity	Time Series Program

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:

Sampling

Samples of Sargassum pacificum and Turbinaria ornata. are collected from fringing, backreef, and reef crest habitats at each LTER site (LTER 1 through LTER 6) around Moorea. Fringing communities were defined as reefs adjacent to the shore and within ca. 50 m of the land. The backreef is located within the lagoon and may be synonymous with lagoon habitats in other studies. The reef crest is the narrow section of partially exposed (during low tide) reef that divides the backreef and outer reef. Individuals (n=10 years 2005-2014, 2020-2021; n=5 years 2017-2019, 2022) of each species are collected from each habitat at each site. Samples are returned to the lab and approximately 1 g (wet mass) of tissue is removed (5 cm from a branch apex) from each individual, rinsed in fresh water (FW), and dried to constant weight at 80 degrees C. Dried samples are submitted for CHN analysis using standard techniques. Ratios of C:N are calculated using their weight percent.

Description: Organic Elemental Analyzer - CHN:

The model CEC 440HA features: high-temperature combustion analysis and simultaneous determination C, H, and N as weight percents. This instrument determines "organic carbon, hydrogen, and nitrogen by means of high-temperature (1000C) combustion (Dumas method) of microgram to milligram size samples in an oxygen-enriched helium atmosphere. The combustion products (CO₂, NOX (reduced to N₂), and H₂O), after chemical removal of potentially interfering gasses, are separated by means of sequential, selective chemical traps, and measured with three pairs of high-precision thermal conductivity detectors. Samples, which have been precisely weighed into small aluminum capsules, placed in protective nickel sleeves, and loaded into the autosampler wheel, are introduced into the combustion furnace by means of a mechanically operated quartz ladle. When combustion is complete, the ladle is withdrawn, and the sample and capsule residue in the nickel sleeve is deposited in a waste chamber (also sealed under helium during the run), thus avoiding buildup of sample residue in the combustion tube. Analysis results are reported in weight percent of the element." (from http://www.msi.ucsb.edu/services/analytical-lab/instruments/organic-elemental-analyzer-chn)

People and Organizations

Publishers:

Organization:

Environmental Data Initiative

Email Address:

info@edirepository.org

Web Address:

https://edirepository.org

Id:

https://ror.org/0330j0z60

Creators:

Organization:

Moorea Coral Reef LTER

Address:

Marine Science Institute,

University of California,

Santa Barbara, CA 93106-6150 USA

Web Address:

http://mcr.lternet.edu/

Individual:

Robert Carpenter

Organization:

Moorea Coral Reef LTER

Address:

Department of Biology,

California State University,

18111 Nordhoff Street,

Northridge, CA 91330-8303 USA

Phone:

818.677.3256 (voice)

Email Address:

robert.carpenter@csun.edu

Id:

http://orcid.org/0000-0003-4232-1868

Contacts:

Organization:

Moorea Coral Reef LTER

Position:

Information Manager

Address:

Marine Science Institute,

University of California,

Santa Barbara, CA 93106-6150 USA

Phone:

805.893.2071 (voice)

Email Address:

mcrlter@msi.ucsb.edu

Web Address:

http://mcr.lternet.edu/

Associated Parties:

Individual:	Kathryn Scafidi
Organization:	Moorea Coral Reef LTER
Position:	Field Technician
Id:	http://orcid.org/0000-0001-7550-0163
Role:	Field Technician

Individual:	Tom Adam
Organization:	Moorea Coral Reef LTER
Position:	Associate Investigator
Id:	http://orcid.org/0000-0001-6146-0260
Role:	Investigator

Individual:	Jordan Gallagher
Organization:	Moorea Coral Reef LTER
Position:	Graduate Research Assistant
Role:	Graduate Research Assistant

Temporal, Geographic and Taxonomic Coverage

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

Time Period

Begin:

2005

End:

2022

Geographic Region:

Description:

Moorea, French Polynesia

Bounding Coordinates:

Northern:	-17.45	Southern:	-17.62
Western:	-150.00	Eastern:	-149.67

Geographic Region:

Description:

LTER 1 polygon including LTER 0 on north shore

Bounding Coordinates:

Northern:	-17.47185366	Southern:	-17.48641792
Western:	-149.8455917	Eastern:	-149.829821

G-Ploygon(Outer Ring):

(GRing) Latitude: , Longitude:

Geographic Region:

Description:

LTER 2 polygon on north shore

Bounding Coordinates:

Northern:	-17.46576169	Southern:	-17.48131958
Western:	-149.8116849	Eastern:	-149.7961685

G-Ploygon(Outer Ring):

(GRing) Latitude: , Longitude:

Geographic Region:

Description:

LTER 3 polygon on southeast shore

Bounding Coordinates:

Northern:	-17.50382025	Southern:	-17.52087158
Western:	-149.7708619	Eastern:	-149.7519968

G-Ploygon(Outer Ring):

(GRing) Latitude: , Longitude:

Geographic Region:

Description:

LTER 4 polygon on southeast shore

Bounding Coordinates:

Northern:	-17.53305021	Southern:	-17.55064263
Western:	-149.7772857	Eastern:	-149.7566866

G-Ploygon(Outer Ring):

(GRing) Latitude: , Longitude:

Geographic Region:

Description:

LTER 5 polygon on southwest shore

Bounding Coordinates:

Northern:	-17.56818162	Southern:	-17.59182383
Western:	-149.8869755	Eastern:	-149.8561009

G-Ploygon(Outer Ring):

(GRing) Latitude: , Longitude:

Geographic Region:

Description:

LTER 6 polygon on southwest shore

Bounding Coordinates:

Northern:	-17.50735955	Southern:	-17.52839766
Western:	-149.934537	Eastern:	-149.9115336

G-Ploygon(Outer Ring):

(GRing) Latitude: , Longitude:

Taxonomic Range:

Classification:

Rank Name:

Phylum

Rank Value:

Ochrophyta

Classification:

Rank Name:

Class

Rank Value:

Phaeophyceae

Classification:

Rank Name:

Order

Rank Value:

Fucales

Classification:

Rank Name:

Family

Rank Value:

Sargassaceae

Classification:

Rank Name:

Genus

Rank Value:

Sargassum

Classification:

Rank Name:	Species
Rank Value:	Sargassum mangarevense

Classification:

Rank Name:

Genus

Rank Value:

Turbinaria

Classification:

Rank Name:	Species
Rank Value:	Turbinaria ornata

Project

Parent Project Information:

Title:

The Moorea Coral Reef (MCR) LTER

Personnel:

Individual:

Russell Schmitt

Organization:

Moorea Coral Reef LTER

Position:

Lead Principal Investigator

Address:

Marine Science Institute,

University of California,

Santa Barbara, CA 93106-6150 USA

Phone:

805.893.3777 (fax)

Email Address:

schmitt@lifesci.ucsb.edu

Web Address:

http://mcr.lternet.edu/

Role:

Principal Investigator

Individual:

Sally Holbrook

Organization:

Moorea Coral Reef LTER

Position:

Principal Investigator

Address:

Marine Science Institute,

University of California,

Santa Barbara, CA 93106-6150 USA

Phone:

805.893.3777 (fax)

Email Address:

holbrook@lifesci.ucsb.edu

Web Address:

http://mcr.lternet.edu/

Role:

Principal Investigator

Individual:

Peter Edmunds

Organization:

Moorea Coral Reef LTER

Position:

Principal Investigator

Address:

Department of Biological Sciences, California State University,

18111 Nordhoff Street,

Northridge, CA 91330-8303 USA

Phone:

818.677.2502 (voice)

Email Address:

peter.edmunds@csun.edu

Web Address:

http://mcr.lternet.edu/

Role:

Principal Investigator

Individual:

Robert Carpenter

Organization:

Moorea Coral Reef LTER

Position:

Principal Investigator

Address:

Department of Biological Sciences, California State University,

18111 Nordhoff Street,

Northridge, CA 91330-8303 USA

Phone:

818-677-3256 (voice)

Phone:

818-677-2034 (fax)

Email Address:

robert.carpenter@csun.edu

Web Address:

http://mcr.lternet.edu/

Role:

Principal Investigator

Funding:

NSF (LTER) MCR I #OCE-0417412, MCR II #OCE-1026851, MCR IIb #OCE-1236905, and MCR III #OCE-1637396

Maintenance

Maintenance:

Description:

This is an ongoing dataset. Samples are collected every year but sent less frequently for CHN analysis. There is typically a one to three year delay before CHN results are available.

Frequency:

History:


scope:	methods
old value:	subset of text
change date:	2012-03-19
comment:	Added CHN instrument and analysis QC description.

scope:	habitat
old value:	typo corrections
change date:	2012-05-21
comment:	Back Reef was miss-typed as BackReef Crest; Back Reef was miss-typed as Back in 2009 and 2010.

scope:	partial year
old value:	na
change date:	2015-10-31
comment:	This revision 16 adds 80 samples from 2014. There are more samples that are not yet analyzed for that year.

scope:	metadata only
old value:	na
change date:	2018-06-08
comment:	Revision 17 metadata only. Methods re-written extensively, ORCiDs, chksum, funding code.

scope:	data
old value:	na
change date:	2022-03-21
comment:	Revision 18 includes years 2014 to 2020.

scope:	data
old value:	column
change date:	2022-03-22
comment:	Revision 19 includes the addition of a comment column for year 2005 to 2020.

scope:	data
old value:	na
change date:	2023-07-13
comment:	Revision 21 fixes missing data that was present only in revision 20.

Other Metadata

Additional Metadata

additionalMetadata
        |___text '\n    '
        |___element 'metadata'
        |     |___text '\n      '
        |     |___element 'unitList' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unitList')
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'id' = 'dimensionless'
        |     |     |     |  \___attribute 'name' = 'dimensionless'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |     |___text 'a designation asserting the absence of an associated unit'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = 'µg'
        |     |     |     |  \___attribute 'constantToSI' = '0'
        |     |     |     |  \___attribute 'id' = 'microgram'
        |     |     |     |  \___attribute 'multiplierToSI' = '0.000000001'
        |     |     |     |  \___attribute 'name' = 'microgram'
        |     |     |     |  \___attribute 'parentSI' = 'kilogram'
        |     |     |     |  \___attribute 'unitType' = 'mass'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |     |___text '0.000000001 kg'
        |     |     |     |___text '\n        '
        |     |     |___text '\n        '
        |     |     |___element 'unit' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:unit')
        |     |     |     |  \___attribute 'abbreviation' = '%'
        |     |     |     |  \___attribute 'constantToSI' = '0'
        |     |     |     |  \___attribute 'id' = 'percent'
        |     |     |     |  \___attribute 'multiplierToSI' = '1'
        |     |     |     |  \___attribute 'name' = 'percent'
        |     |     |     |  \___attribute 'unitType' = 'dimensionless'
        |     |     |     |___text '\n          '
        |     |     |     |___element 'description' in ns 'http://www.xml-cml.org/schema/stmml-1.1' ('stmml:description')
        |     |     |     |     |___text 'ratio of two quantities as percent composition (1:100)'
        |     |     |     |___text '\n        '
        |     |     |___text '\n      '
        |     |___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

MCR LTER: Coral Reef: Macroalgal CHN, ongoing since 2005

Data Entities

Data Table

Data Package Usage Rights

Keywords

Methods and Protocols

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

Sampling

Description: Organic Elemental Analyzer - CHN:

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Parent Project Information:

Maintenance

Additional Metadata

Recently Added

Recently Updated

Data Package Metadata View Summary

MCR LTER: Coral Reef: Macroalgal CHN, ongoing since 2005

+/- Data Entities

Data Table

+/- Data Package Usage Rights

+/- Keywords

+/- Methods and Protocols

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

Sampling

Description: Organic Elemental Analyzer - CHN:

+/- People and Organizations

+/- Temporal, Geographic and Taxonomic Coverage

+/- Project

Parent Project Information:

+/- Maintenance

+/- Additional Metadata

Data Entities

Data Package Usage Rights

Keywords

Methods and Protocols

People and Organizations

Temporal, Geographic and Taxonomic Coverage

Project

Maintenance

Additional Metadata