gov.noaa.nmfs.inport:24914 eng UTF8 dataset CSV Files 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 Carlson, John 850-234-6541 x221 850-235-3559 3500 Delwood Beach Road Panama City FL 32408 John.Carlson@noaa.gov pointOfContact 2026-03-04T19:17:20 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) ATSH ATL DIET (stomach contents of Atlantic sharpnose shark on east coast of FL (NCEI Accession 0164343) Stomach contents of Atlantic sharpnose shark on east coast of FL 2001 creation 2017 revision 2017 publication NOAA/NMFS/EDM 24914 https://www.fisheries.noaa.gov/inport/item/24914 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://www.ncei.noaa.gov/archive/accession/0164343 WWW:LINK-1.0-http--link Landing Page NCEI Accession 0164343 Online Resource download tableDigital Cite as: Carlson, John (2017). Stomach content analysis of Atlantic sharpnose shark in the Atlantic Ocean from 2001-08-06 to 2005-09-24 (NCEI Accession 0164343). Version 1.1. NOAA National Centers for Environmental Information. Dataset. [access date] A reassessment of the diet of the Atlantic sharpnose shark Rhizoprionodon terraenovae was conducted to provide an update on their trophic level (n390). Rhizoprionodon terraenovae primarily consume teleost fish however, loggerhead sea turtles Caretta caretta were also found in the diet for the first reported time. Analysis suggests that calculated trophic level may significantly depend on geographic area, thus adding a new factor to fishery management decisions. To (1) reanalyze the diet and estimated trophic level of the R. terraenovae based on quantitative stomach analysis and (2) further quantify its trophic position in relation to other shark species and determine if geographic region is significant. completed Carlson, John 850-234-6541 x221 850-235-3559 3500 Delwood Beach Road Panama City FL 32408 John.Carlson@noaa.gov custodian notPlanned Rhizoprionodon terraenovae theme World Register of Marine Species (WoRMS) OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN place Global Change Master Directory (GCMD) Location Keywords 20.8 NETS > NETS instrument Global Change Master Directory (GCMD) Instrument Keywords 17.2 GILLNETS AND ENTANGLING NETS > Drift gillnets instrument International Standard Statistical Classification of Fishing Gear (ISSCFG) 1 INDIVIDUAL FISH EXAMINATION - SEX STOMACH CONTENTS STOMACH CONTENTS - CONTENT WEIGHT STOMACH CONTENTS - CONTENT WEIGHTSTOMACH CONTENTS - CONTENT WEIGHT STOMACH CONTENTS - DIGESTION STOMACH CONTENTS - FULLNESS STOMACH CONTENTS - PREY COUNT STOMACH CONTENTS - PREY TAXONOMY STOMACH CONTENTS - PREY WEIGHT WATER TEMPERATURE theme NODC DATA TYPES Coastal Waters oF Florida North Atlantic Ocean place NODC SEA AREA NAMES THESAURUS YSI - handheld multi-parameter instrument calipers laboratory analysis net scale instrument NODC INSTRUMENT TYPES THESAURUS Rhizoprionodon terraenovae atlantic sharpnose shark caretta caretta feeding ecology fishery-dependent food web mesopredator turtle theme 2001-2005 temporal 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 Sharks project InPort otherRestrictions Cite As: Southeast Fisheries Science Center, [Date of Access]: ATSH ATL DIET (stomach contents of Atlantic sharpnose shark on east coast of FL (NCEI Accession 0164343) [Data Date Range], https://www.fisheries.noaa.gov/inport/item/24914. 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: 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. otherRestrictions Use Constraints: Not for use in litigation Please cite approPRIATELY unclassified NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 24914 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nmfs/sefsc/dmp/pdf/24914.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 -81.113 -79.326 26.648 30.242 Atlantic Ocean, U.S. South | Currentness: Ground Condition 2001 2005 false eng false Data Table biological_data_atlantic.csv 2021-10-19 publication diet_atlantic.csv 2021-10-19 publication NCEI Archived Data Accession GTAR NOAA National Centers for Environmental Information ncei.info@noaa.gov https://www.ncei.noaa.gov/contact WWW:LINK-1.0-http--link NCEI Contact Information Information for contacts at NCEI. information distributor https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/accession/download/164343 WWW:LINK-1.0-http--link 164343.1.1.tar.gz download dataset Precision prey items were identified to the lowest possible taxonomic level Analytical Precision prey items wqre counted, measured and weighed wet (with a precision of 001 g Rhizoprionodon terraenovae were collected by onboard National Marine Fisheries Service contract fishery observers in the Florida shark drift gillnet fishery from 2001 to 2005 (n390). All R. terraenovae were collected in areas off the east coast of Florida ranging from 27 05 to 28 43 N. A complete description of the observer program and shark processing is detailed in Carlson Bethea (2006). Rhizoprionodonterraenovae were randomly selected from the catch, and fork length (LF) andsex were recorded. Stomachs were removed and immediately frozen or stored on iceprior to transport. At the laboratory, stomachs were stored in a large walk-in freezer(c. -12 C) until dissection. Upon dissection, prey items were identified to the lowestpossible taxonomic level, counted, measured and weighed wet (with a precision of001 g).A cumulative prey curve was created to determine if sample size was sufficient toaccurately describe diet. The order of stomach analysis was randomized 10 times,and the mean number of new prey species found in consecutive stomachs was plottedagainst the number of non-empty stomachs. The existence of an asymptotic relationshipindicates that sample size is adequate to represent overall dietary habits (Cailliet et al.,1986 Ferry Cailliet, 1996). The final 10 values of the cumulative prey curve weresignificantly different from a slope0 (t 4669, P001), and the slope increased at589. While greater sampling could yield an even more comprehensive analysis ofR. terraenovae diet, the slope was only slightly higher than the threshold of 5 (Ferry Calliet, 1996), indicating that the diets were well described overall.Published 2014. This article is a U.S. Government work and is in the public domain in the USA.Journal of Fish Biology 2015, 86, 385391DIET AND TROPHIC ANALYSIS OF R . TERRAENOVAE 387Diet was analysed following Corts (1997) using four standard indices: per cent bynumber (N), per cent by mass (W), per cent frequency of occurrence (O) (Hyslop,1980) and the index of relative importance (IRI Piankas et al., 1971). The IRI wasused to facilitate comparison with previous diet studies and was calculated as IRI O(N W). The IRI was then expressed on a per cent basis (IRI Corts, 1997) by summing all IRI values for every prey item and then dividing each individual IRI valueby the total.To calculate the TL, the stomach contents were pooled into eight major diet categories:cephalopods, chondrichthyans, decapods, teleosts, invertebrates (excludingdecapods and molluscs), molluscs, marine plants and marine reptiles (Corts, 1999).Each prey category was assigned an average trophic level, TLj, based on estimatesaggregated by Corts (1999) in order to compare values. The TL was expressed asTL 1 8Sj1PjTLj, where Pj is the proportion by IRI of each category.The means.d. TL calculated for R. terraenovae was 4201, with the teleost preycategory comprising 9103 IRI, followed by invertebrates (excluding decapods) at261 IRI and decapods at 200 IRI (Table II). While the majority of fishes in thediet was unidentifiable, the increase in TL from Corts (1999) is due to an increase infish consumption (664 v. 910 IRI) over crustaceans (316 v. 26 IRI). Comparisonof the IRI of the four major prey categories between this study, Gelsleichter et al.(1999), Bethea et al. (2006) and Drymon et al. (2012) shows that results reported byDrymon et al. (2012) and Bethea et al. (2006) closely resemble the findings reportedhere, with a very high IRI of teleosts. While the percentages were similar, each study reported unique prey items not found in the other studies, thus demonstrating regional differences. Carlson, John 850-234-6541 x221 John.Carlson@noaa.gov processor otherRestrictions Access Constraints: None | Drift Gillnet Gillnets The drift gillnet is set adrift and monitored for catch. Commercial Florida Shark Gillnet Fishing Fleet Commercial Vessel in the Florida Shark Gillnet Fishing Fleet that collects scientific ancillary to its commercial fishing activities Drift Gillnet Gillnets The drift gillnet is set adrift and monitored for catch.