gov.noaa.nmfs.inport:30691 eng UTF8 dataset Southeast Fisheries Science Center (305)361-5761 75 Virginia Beach Drive Miami FL 33149 USA www.sefsc.noaa.gov WWW:LINK-1.0-http--link Website Website for this organization information 8:00 a.m. - 4:30 p.m. EST resourceProvider Rozas, Lawrence P Contact by email preferred. pointOfContact 2026-03-04T19:17:18 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) Vallisneria 2003-2004 2003 creation 2005 revision 2018 publication NOAA/NMFS/EDM 30691 https://www.fisheries.noaa.gov/inport/item/30691 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information tableDigital We compared nekton use of Vallisneria americana Michx. (submerged aquatic vegetation, SAV) with marsh shoreline vegetation and subtidal nonvegetated bottom (SNB) using a 1-m2 drop sampler in the oligohaline area of Barataria Bay, Louisiana. Mean densities of most abundant species were significantly different among six habitat types. Harris mud crab Rhithropanopeus harrisii, Ohio shrimp Macrobrachium ohione, blue crab Callinectes sapidus, daggerblade grass shrimp Palaemonetes pugio, white shrimp Litopenaeus setiferus (fall), rainwater killifish Lucania parva, naked goby Gobiosoma bosc, code goby Gobiosoma robustum (fall), speckled worm eel Myrophis punctatus (fall), and gulf pipefish Syngnathus scovelli (spring), were much more abundant, and species richness also was greater, in Vallisneria than over SNB. Vallisneria supported densities of most species that were similar to those in marsh vegetation, although naked goby and gulf pipefish were more abundant in Vallisneria, and speckled worm eel and saltmarsh topminnow Fundulus jenkinsi were more abundant in marsh. Within the Vallisneria bed, densities of Harris mud crab, rainwater killifish, and speckled worm eel were higher at sites near the marsh (SAV Inside Edge) than at sites more distant from the marsh (SAV Outside Edge), and Ohio shrimp (fall) densities were higher in the interior of the bed than along the edges. The mean size of blue crab was larger in marsh than Vallisneria and larger in Vallisneria than SNB. White shrimp did not differ in size among habitat types. Vallisneria beds may provide an important nursery habitat for young blue crab and white shrimp that use oligohaline estuarine areas. These SAV beds can provide an alternative structural habitat to emergent vegetation during periods of low water, because Vallisneria occurs in the subtidal and generally persists throughout the year on the Gulf coast. Species whose young thrive in low-salinity waters and also depend on structure would benefit most from Vallisneria habitat in estuaries. The purpose of this study was to evaluate the role of Vallisneria beds in providing nursery habitat for fishery species and other nekton. completed Baumer, Tim J 409-766-3784 4700 Avenue U Galveston TX 77551 tim.baumer@noaa.gov Contact by email preferred. pointOfContact Rozas, Lawrence P Contact by email preferred. custodian EARTH SCIENCE > Oceans > Marine Biology > Marine Invertebrates > Biomass EARTH SCIENCE > Oceans > Marine Biology > Marine Invertebrates > Census > Macroinvertebrates theme CoRIS Theme ANIMALS - INDIVIDUAL - MASS theme NODC DATA TYPES Gulf of Mexico place NODC SEA AREA NAMES 2002 2003 temporal 1-m2 drop sampler instrument DOC/NOAA/NMFS/SEFSC > Southeast Fisheries Science Center, National Marine Fisheries Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian Galveston Fisheries Ecology Projects project InPort otherRestrictions Cite As: Southeast Fisheries Science Center, [Date of Access]: Vallisneria 2003-2004 [Data Date Range], https://www.fisheries.noaa.gov/inport/item/30691. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: None unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 30691 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/sefsc/dmp/pdf/30691.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US oceans -90.22225 -90.20159 29.52784 29.52891 Gulf Of Mexico | Currentness: Ground Condition 2003 2004 false eng false Data Table Vallisneria_2003_2004_tblPenaeids.csv 2021-10-21 publication Vallisneria_2003_2004_FishLength.csv 2021-10-21 publication Vallisneria_2003_2004_InvertLength.csv 2021-10-21 publication Vallisneria_2003_2004_tblSamples.csv 2021-10-21 publication Vallisneria_2003_2004_tblInvertMass.cs 2021-10-21 publication Vallisneria_2003_2004_tblfishmass.csv 2021-10-21 publication tblsamples_codes_values.csv 2021-10-21 publication CSV - Comma Separated Values (Text) Zip Southeast Fisheries Science Center (305)361-5761 75 Virginia Beach Drive Miami FL 33149 USA https://www.fisheries.noaa.gov/about/southeast-fisheries-science-center WWW:LINK-1.0-http--link Southeast Fisheries Science Center Website About SEFSC information 8:00 a.m. - 4:30 p.m. EST Contact by email preferred. distributor https://grunt.sefsc.noaa.gov/parr/30691.zip WWW:LINK-1.0-http--link 30691.zip All data files and readme file are included in .zip file download dataset After sample collection, field data were entered into an Excel spreadsheet or database file (DBF) using database manager software. A text file was created to describe these data and associated variables. Entered data were checked against the field sheets by two biologists to minimize entry errors. Samples were processed in the laboratory, sorted, specimens identified and measured, and information was entered into an Excel spreadsheet or DBF file. Files were printed out and compared against original data sheets by two biologists for data entry errors. Corrections were made at this time, the electronic file was saved, and a back-up copy made. Hard copies of the QCd files were printed and stored in the project folder along with the original field and laboratory data sheets. The electronic file was also sorted and examined by the Lab Supervisor or other project personnel in a variety of ways to look for outliers, missing data, and other potential errors. Verified data files were then saved electronically on the Galveston Laboratory server and backed-up as needed. Ditty, James 409-766-3782 Jim.Ditty@noaa.gov processor