Dataset Overview | National Centers for Environmental Information (NCEI)

NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Carbon, nitrogen and sulfur stable isotope values of organisms from created and natural marsh of Lake Hermitage, West Point a la Hache, and Bay Batiste, Louisiana, May 2019 (NCEI Accession 0304324)

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This dataset contains bulk tissue carbon (delta-13C), nitrogen (delta-15N), and sulfur (delta-34S) stable isotope values from sediment samples, marsh primary producers, marsh invertebrates, and marsh vertebrates collected at two created and four natural marsh sites in Plaquemines Parish, Louisiana near Lake Hermitage, West Point a la Hache, and Bay Batiste in May 2019. The data set also contains site location, species composition (determined to the lowest taxonomic level), body size, and elemental concentration information. Data are in spreadsheet format.

Dataset Citation

Cite as: Polito, Michael J.; Loesser, Katherine B.; Stahl, Angela R.; Bennadji, Hayat; López-Duarte, Paola C.; Olin, Jill A.; Martin, Charles W.; Rabalais, Nancy; Roberts, Brian J. (2025). NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Carbon, nitrogen and sulfur stable isotope values of organisms from created and natural marsh of Lake Hermitage, West Point a la Hache, and Bay Batiste, Louisiana, May 2019 (NCEI Accession 0304324). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4ft9-xa88. Accessed [date].

Dataset Identifiers

ISO 19115-2 Metadata

gov.noaa.nodc:0304324

Full Text · XML

Download Data	HTTPS (download) Navigate directly to the URL for data access and direct download. FTP (download) These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
Distribution Formats	Excel
Ordering Instructions	Contact NCEI for other distribution options and instructions.
Distributor	NOAA National Centers for Environmental Information +1-301-713-3277 ncei.info@noaa.gov
Dataset Point of Contact	NOAA National Centers for Environmental Information ncei.info@noaa.gov

Time Period	2019-05-05 to 2019-05-20
Spatial Bounding Box Coordinates	West: -89.8543 East: -89.8099 South: 29.4759 North: 29.5605
Spatial Coverage Map

General Documentation

NCEI Dataset Landing Page
Navigate directly to the URL for a descriptive web page with download links.
Descriptive Information
Navigate directly to the URL for a descriptive web page with download links.

Associated Resources

National Centers for Coastal Ocean Science. 2023. RESTORE Sponsored Research Project: Linking Community and Food-web Approaches to Restoration. https://www.fisheries.noaa.gov/inport/item/71399
- https://www.fisheries.noaa.gov/inport/item/71399
  INPORT Webpage
LUMCON Project Page
- https://restorefoodweb.lumcon.edu/
  LUMCON Project Page
RESTORE Project, Linking community and food-web approaches to restoration: An ecological assessment of created and natural marshes influenced by river diversions
- https://restoreactscienceprogram.noaa.gov/projects/marshes
  RESTORE Project Page
External source of salinity data in the same geographic region of this current study area (stations near the sampling sites in this dataset are: 0263, 3617, 0260, 0258, 3680, 0282, 0209, 4529, 0226, 0224
- https://lacoast.gov/crms_viewer/Map/CRMSViewer
  CRMS Map Viewer
Rabalais, Nancy N.; Morrison, Wendy; Smith, Leslie; Woods, Gina (2024). NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Taxonomic data for marsh infauna associated with natural and restored marshes along a salinity gradient generated from a freshwater diversion at West Pointe a la Hache into eastern Barataria Bay, Louisiana, 2018-05-21 to 2021-05-25 (NCEI Accession 0296020). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/zb46-m126.
- https://doi.org/10.25921/zb46-m126
  Related data
Rabalais, Nancy N.; Morrison, Wendy; Smith, Leslie M.; Woods, Gina (2024). NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Total organic carbon and sediment grain size at natural and restored marshes along a salinity gradient generated from a freshwater diversion at West Pointe a la Hache into eastern Barataria Bay, Louisiana, 2018-05-21 to 2021-05-25 (NCEI Accession 0296021). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/fk7x-v112.
- https://doi.org/10.25921/fk7x-v112
  Related data
Polito, Michael J.; O'Nuanain, Aine; Bennelli, Allison; Winston, Joseph; Lamb, Katelyn J.; López-Duarte, Paola C.; Roberts, Brian J. (2025). NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Organic matter decomposition in restored vs. natural Louisiana marshes near the West Pointe A La Hache siphon, 2018-05-21 to 2021-07-28 (NCEI Accession 0302679). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/8h8n-e570.
- https://doi.org/10.25921/8h8n-e570
  Related data
Polito, Michael J.; Lamb, Katelyn J.; López-Duarte, Paola C.; Olin, Jill A.; Martin, Charles W.; Hooper-Bùi, Linda M.; Roberts, Brian J. (2025). NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Carbon and nitrogen stable isotope values of organisms from created and natural marsh of Lake Hermitage, West Point a la Hache, and Bay Batiste, Louisiana, May 2018 (NCEI Accession 0302883). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/43d6-6r23.
- https://doi.org/10.25921/43d6-6r23
  Related data
Olin, Jill (2025). NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Bulk sulfur stable isotopes of on- and off-marsh fish species in restored vs. natural Louisiana marshes near the West Pointe A La Hache siphon, May 2018 (NCEI Accession 0302625). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/w8nw-nv55.
- https://doi.org/10.25921/w8nw-nv55
  Related data
Swenson, Erick (2025). NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Continuous hydrologic data from sondes deployed by Louisiana State University (LSU) in natural and restored marshes in the Lake Hermitage, Louisiana area from 2018-03-12 to 2021-12-31 (NCEI Accession 0304323). NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/sptc-ka77.
- https://doi.org/10.25921/sptc-ka77
  Related data

Publication Dates	publication: 2025-05-22 creation: 2025-05-15
Data Presentation Form	Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status	Complete - production of the data has been completed Historical archive - data has been stored in an offline storage facility
Data Update Frequency	As needed
Supplemental Information	Methods: Brackish marsh organisms were collected in May 2019 using minnow traps, fyke nets, otter trawls, dip nets, and by hand from each site. Live plant leaves and surface soil organic matter (SOM) were collected along transects and benthic microalgae (BMA) was collected and extracted from surface sediment samples 1 m inland from the marsh edge at each site. Epiphytic algae were opportunistically sampled by hand from ponds and the marsh edge while phytoplankton/particulate organic matter (POM) was collected on GFF filters from triplicate water samples taken approximately 5 m offshore from each site. Samples were dissected, dried, and homogenized as appropriate, with muscle tissue being lipid extracted using 2:1 chloroform:methanol as appropriate, and then analyzed for carbon, nitrogen, and sulfur stable isotope values.
Purpose	To examine and compare the trophic structure and food web dynamics between created and natural brackish marshes. Little is known about how river diversions influence the ecological trajectory, food web structure, and function of natural versus created marshes. To address this gap, this project established sites in the West Point a la Hache (WPH) area (Barataria Bay, in Plaquemines Parish, Louisiana), near the WPH siphon which periodically shunts Mississippi River water into the local marshes. Sites were also established in nearby marshes that were restored as part of the Lake Hermitage (LH) Marsh Creation Project, representing an ideal model system to examine how seasonal and spatial shifts in salinity due to river diversions influence species composition and food web structure in both natural and different-aged created marshes. Objectives of the overall project included characterizing species compositions and abundances in multiple trophic levels (microbes to upper trophic level predators) and applying bulk (SIA) and compound-specific stable isotope analysis (CSIA) of amino acids (AA) in producer and consumer tissues to describe and compare the structure and complexity of food webs and reveal aspects of fish residency. Only carbon, nitrogen, and sulfur stable isotope related data are included in this dataset.
Use Limitations	accessLevel: Public Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.

Dataset Citation	Cite as: Polito, Michael J.; Loesser, Katherine B.; Stahl, Angela R.; Bennadji, Hayat; López-Duarte, Paola C.; Olin, Jill A.; Martin, Charles W.; Rabalais, Nancy; Roberts, Brian J. (2025). NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Carbon, nitrogen and sulfur stable isotope values of organisms from created and natural marsh of Lake Hermitage, West Point a la Hache, and Bay Batiste, Louisiana, May 2019 (NCEI Accession 0304324). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4ft9-xa88. Accessed [date].
Cited Authors	Polito, Michael J. Louisiana State University (LSU) Loesser, Katherine B. NOAA National Centers for Coastal Ocean Science (NCCOS) Stahl, Angela R. University of California - Santa Cruz (UCSC) Bennadji, Hayat Louisiana State University (LSU) López-Duarte, Paola C. Rutgers, The State University of New Jersey Olin, Jill A. Michigan Technological University (MTU) Martin, Charles W. University of Florida (UF) Rabalais, Nancy Louisiana State University (LSU) Roberts, Brian J. Louisiana Universities Marine Consortium (LUMCON)
Principal Investigators	Michael Polito University of California - Santa Cruz (UCSC)
Collaborators	Michael Polito University of California - Santa Cruz (UCSC) Annette Engel University of Tennessee Linda Hooper-Bùi Louisiana State University (LSU) Olaf Jensen Rutgers, The State University of New Jersey Paola López-Duarte Rutgers, The State University of New Jersey Jill Olin Michigan Technological University (MTU) Brian Roberts Louisiana Universities Marine Consortium (LUMCON) Erick Swenson Louisiana State University (LSU) Nancy N. Rabalais Louisiana State University (LSU) Charles Martin University of Florida (UF)
Contributors	Louisiana Universities Marine Consortium (LUMCON) Michigan Technological University (MTU) NOAA National Centers for Coastal Ocean Science (NCCOS) University of Florida (UF) NOAA RESTORE Science Program Rutgers, The State University of New Jersey Louisiana State University (LSU) University of Tennessee University of California - Santa Cruz (UCSC)
Resource Providers	NOAA National Centers for Coastal Ocean Science (NCCOS)
Points of Contact	Frank Parker NOAA RESTORE Science Program NCCOS Data Manager NOAA National Centers for Coastal Ocean Science (NCCOS) Michael Polito University of California - Santa Cruz (UCSC) NOAA RESTORE Science Program
Publishers	NOAA National Centers for Environmental Information
Acknowledgments	The data in this accession were funded by the NOAA RESTORE Science Program under award NA17NOS4510091 to Louisiana State University. Funding Agency: NOAA RESTORE Science Program NCCOS Partners: Louisiana State University Wetland Biogeochemistry Analytical Services (WBAS) Laboratory

Theme keywords	NODC DATA TYPES THESAURUS CARBON DELTA CARBON-13 DELTA CARBON-14 DELTA NITROGEN-15 SPECIES IDENTIFICATION SPECIES IDENTIFICATION - ORGANISM LENGTH Sulfur (S) Vegetation Cover NODC OBSERVATION TYPES THESAURUS laboratory analyses WMO_CategoryCode oceanography Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > BIOSPHERE > VEGETATION > VEGETATION COVER EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > CARBON EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITROGEN NCCOS Research Data Type Field Observation NCCOS Research Topic Ecological and Biogeographic Assessments Provider Keywords Carbon to Nitrogen ratios (CN_Ratio) Species Size measurements Stable carbon isotopes (d13C) Stable nitrogen isotopes (d15N) Stable sulfur isotopes (d34S)
Data Center keywords	NODC COLLECTING INSTITUTION NAMES THESAURUS Louisiana State University Louisiana Universities Marine Consortium Michigan Technological University NOAA National Centers for Coastal Ocean Science NOAA RESTORE Science Program Rutgers, The State University of New Jersey University of California - Santa Cruz University of Florida University of Tennessee NODC SUBMITTING INSTITUTION NAMES THESAURUS NOAA National Centers for Coastal Ocean Science Global Change Master Directory (GCMD) Data Center Keywords DOC/NOAA/NOS/NCCOS > National Centers for Coastal Ocean Science, National Ocean Service, NOAA, U.S. Department of Commerce
Instrument keywords	NODC INSTRUMENT TYPES THESAURUS laboratory analysis mass spectrometer net sediment sampler - grab trap trawl Global Change Master Directory (GCMD) Instrument Keywords GRAB SAMPLERS MASS SPECTROMETERS > MASS SPECTROMETERS NETS > NETS TRAPS > TRAPS TRAWL Provider Instruments Costech ECS4010 ECS4010 or Thermo Scientific Flash EA elemental analyzer coupled to a Thermo-Fisher Delta Plus XP or Delta V Adv Costech ECS4010 or Thermo Scientific Flash EA elemental analyzer coupled to a Thermo-Fisher Delta Plus XP or Delta V Advantage c Thermo Scientific Flash EA elemental analyzer coupled to a Thermo-Fisher Delta Plus XP or Delta V Advantage continuous-flow stab
Place keywords	NODC SEA AREA NAMES THESAURUS Coastal Waters of Gulf of America Coastal Waters of Gulf of Mexico Coastal Waters of Louisiana Gulf of America Gulf of Mexico Global Change Master Directory (GCMD) Location Keywords OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF AMERICA OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO NCCOS Research Location NCCOS Research Location > Region > Gulf of America (formerly Gulf of Mexico) Provider Place Names Lake Hermitage [HP], Louisiana Port Sulphur [PS] , Louisiana West Pointe a la Hache [WPH], eastern Barataria Bay, Louisiana
Project keywords	Provider Project Names NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration US DOC; NOAA; NOS; NCCOS; RESTORE Science Program (ROR - https://ror.org/0042xzm63)
Keywords	NCEI ACCESSION NUMBER 0304324
Keywords	Send2NCEI Submission Package ID NC54UU

Use Constraints	Cite as: Polito, Michael J.; Loesser, Katherine B.; Stahl, Angela R.; Bennadji, Hayat; López-Duarte, Paola C.; Olin, Jill A.; Martin, Charles W.; Rabalais, Nancy; Roberts, Brian J. (2025). NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Carbon, nitrogen and sulfur stable isotope values of organisms from created and natural marsh of Lake Hermitage, West Point a la Hache, and Bay Batiste, Louisiana, May 2019 (NCEI Accession 0304324). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/4ft9-xa88. Accessed [date].
Data License	This dataset has been dedicated to the public domain under a Creative Commons CC0 1.0 Universal (CC0 1.0) Public Domain Dedication. SPDX License: Creative Commons Zero v1.0 Universal (CC0-1.0)
Access Constraints	Use liability: NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees	In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.

Lineage information for: dataset
Processing Steps	2025-05-22T20:52:37Z - NCEI Accession 0304324 v1.1 was published.
Output Datasets	NCEI Accession 0304324 v1.1 NCEI Accession 0304324 v1.1 (download) published 2025-05-22T20:52:37Z

Lineage information for: dataset
Processing Steps	Parameter or Variable: Species Size measurements (measured); Units: millimeter; Observation Category: laboratory analysis; Sampling Instrument: unknown; Sampling and Analyzing Method: See Methods section above; Data Quality Method: When more than one individual was pooled into one sample, size measurements are reported for each individual. NA is reported for vegetation, sediment, benthic microalgae, and phytoplankton. Parameter or Variable: Stable carbon isotopes (d13C) (measured); Units: per mil; Observation Category: laboratory analysis; Sampling Instrument: Costech ECS4010 ECS4010 or Thermo Scientific Flash EA elemental analyzer coupled to a Thermo-Fisher Delta Plus XP or Delta V Adv; Sampling and Analyzing Method: Stable isotope ratios are expressed in delta notation in per mil units (‰), according to the following equation: delta-X = [(Rsample / Rstandard) - 1]. Where X is 13C,15N, or 34S and R is the respective atomic ratio of heavy to light isotopes (i.e., 13C:12C, 15N:14N, or 34S:32S). The Rstandard values are referenced to the Vienna PeeDee Belemnite (VPDB) for delta-13C, atmospheric N2 for delta-15N and Canyon Diablo Troilite for delta-34S.; Data Quality Method: The analytical precision was 0.1‰ (based on standard deviations of repeated reference materials). Parameter or Variable: Stable nitrogen isotopes (d15N) (measured); Units: per mil; Observation Category: laboratory analysis; Sampling Instrument: Costech ECS4010 or Thermo Scientific Flash EA elemental analyzer coupled to a Thermo-Fisher Delta Plus XP or Delta V Advantage c; Sampling and Analyzing Method: Stable isotope ratios are expressed in delta notation in per mil units (‰), according to the following equation: delta-X = [(Rsample / Rstandard) - 1]. Where X is 13C,15N, or 34S and R is the respective atomic ratio of heavy to light isotopes (i.e., 13C:12C, 15N:14N, or 34S:32S). The Rstandard values are referenced to the Vienna PeeDee Belemnite (VPDB) for delta-13C, atmospheric N2 for delta-15N and Canyon Diablo Troilite for delta-34S.; Data Quality Method: The analytical precision was 0.2‰ (based on standard deviations of repeated reference materials). Parameter or Variable: Stable sulfur isotopes (d34S) (measured); Units: per mil; Observation Category: laboratory analysis; Sampling Instrument: Thermo Scientific Flash EA elemental analyzer coupled to a Thermo-Fisher Delta Plus XP or Delta V Advantage continuous-flow stab; Sampling and Analyzing Method: Stable isotope ratios are expressed in delta notation in per mil units (‰), according to the following equation: delta-X = [(Rsample / Rstandard) - 1]. Where X is 13C,15N, or 34S and R is the respective atomic ratio of heavy to light isotopes (i.e., 13C:12C, 15N:14N, or 34S:32S). The Rstandard values are referenced to the Vienna PeeDee Belemnite (VPDB) for delta-13C, atmospheric N2 for delta-15N and Canyon Diablo Troilite for delta-34S.; Data Quality Method: The analytical precision was 0.2‰ (based on standard deviations of repeated reference materials). Parameter or Variable: Carbon to Nitrogen ratios (CN_Ratio) (calculated); Units: ratio; Observation Category: other; Sampling Instrument: n/a; Sampling and Analyzing Method: calculated as %C divided by %N

Lineage information for: dataset

Processing Steps

Parameter or Variable: Species Size measurements (measured); Units: millimeter; Observation Category: laboratory analysis; Sampling Instrument: unknown; Sampling and Analyzing Method: See Methods section above; Data Quality Method: When more than one individual was pooled into one sample, size measurements are reported for each individual. NA is reported for vegetation, sediment, benthic microalgae, and phytoplankton.
Parameter or Variable: Stable carbon isotopes (d13C) (measured); Units: per mil; Observation Category: laboratory analysis; Sampling Instrument: Costech ECS4010 ECS4010 or Thermo Scientific Flash EA elemental analyzer coupled to a Thermo-Fisher Delta Plus XP or Delta V Adv; Sampling and Analyzing Method: Stable isotope ratios are expressed in delta notation in per mil units (‰), according to the following equation: delta-X = [(Rsample / Rstandard) - 1]. Where X is 13C,15N, or 34S and R is the respective atomic ratio of heavy to light isotopes (i.e., 13C:12C, 15N:14N, or 34S:32S). The Rstandard values are referenced to the Vienna PeeDee Belemnite (VPDB) for delta-13C, atmospheric N2 for delta-15N and Canyon Diablo Troilite for delta-34S.; Data Quality Method: The analytical precision was 0.1‰ (based on standard deviations of repeated reference materials).
Parameter or Variable: Stable nitrogen isotopes (d15N) (measured); Units: per mil; Observation Category: laboratory analysis; Sampling Instrument: Costech ECS4010 or Thermo Scientific Flash EA elemental analyzer coupled to a Thermo-Fisher Delta Plus XP or Delta V Advantage c; Sampling and Analyzing Method: Stable isotope ratios are expressed in delta notation in per mil units (‰), according to the following equation: delta-X = [(Rsample / Rstandard) - 1]. Where X is 13C,15N, or 34S and R is the respective atomic ratio of heavy to light isotopes (i.e., 13C:12C, 15N:14N, or 34S:32S). The Rstandard values are referenced to the Vienna PeeDee Belemnite (VPDB) for delta-13C, atmospheric N2 for delta-15N and Canyon Diablo Troilite for delta-34S.; Data Quality Method: The analytical precision was 0.2‰ (based on standard deviations of repeated reference materials).
Parameter or Variable: Stable sulfur isotopes (d34S) (measured); Units: per mil; Observation Category: laboratory analysis; Sampling Instrument: Thermo Scientific Flash EA elemental analyzer coupled to a Thermo-Fisher Delta Plus XP or Delta V Advantage continuous-flow stab; Sampling and Analyzing Method: Stable isotope ratios are expressed in delta notation in per mil units (‰), according to the following equation: delta-X = [(Rsample / Rstandard) - 1]. Where X is 13C,15N, or 34S and R is the respective atomic ratio of heavy to light isotopes (i.e., 13C:12C, 15N:14N, or 34S:32S). The Rstandard values are referenced to the Vienna PeeDee Belemnite (VPDB) for delta-13C, atmospheric N2 for delta-15N and Canyon Diablo Troilite for delta-34S.; Data Quality Method: The analytical precision was 0.2‰ (based on standard deviations of repeated reference materials).
Parameter or Variable: Carbon to Nitrogen ratios (CN_Ratio) (calculated); Units: ratio; Observation Category: other; Sampling Instrument: n/a; Sampling and Analyzing Method: calculated as %C divided by %N

Acquisition Information (collection)
Instrument	laboratory analysis mass spectrometer net sediment sampler - grab trap trawl

Last Modified: 2026-02-05T19:08:24Z
For questions about the information on this page, please email: ncei.info@noaa.gov

NOAA RESTORE Science Program: Linking Community and Food-web Approaches to Restoration: Carbon, nitrogen and sulfur stable isotope values of organisms from created and natural marsh of Lake Hermitage, West Point a la Hache, and Bay Batiste, Louisiana, May 2019 (NCEI Accession 0304324)

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