18593 Predator Gut Isotopes (Characterizing ecosystem role of sharks) Data Set Published / External 17775 CB (Conservation Biology) Division Project Completed 2012-10-01 2016-07-20 This work uses white muscle tissues collected from sixgill and sevengill sharks to characterize the diet of each species. Tissues from prey species have also been prepared in order to initialize the models. We used mixing models to determine the probabilities of each prey species being in the diet of these top predators. These data will be used to predict which prey groups are impacted by these species, and then used in conjunction with patterns of daily, seasonal, and annual movement patterns to examine the variation in predatory impact across space and time among the various prey groups. Shark tissue stable isotope signatures from Northeast Pacific coastal habitats. Raw/field data, Monitoring or sensor data, Model results, Laboratory data Loaded by batch 4484, 02-28-2013 14:39 Subject to Public Access to Research Results (PARR): Yes Theme predators Theme stable isotopes Spatial 10 Spatial 2-1 Spatial MACN Spatial Puget Sound, WA Spatial WAMarine Spatial Willapa Bay, WA Instrument Balance Instrument Drying Oven Instrument Instrument Not Applicable - Instrument Not Applicable Instrument Lipid Extractor Platform Animal and Plant Collection Device Northwest Fisheries Science Center Seattle WA USA Data Set Spreadsheet Table (digital) Balance, Drying Oven, Instrument Not Applicable - Instrument Not Applicable, Lipid Extractor Water based Platforms - Watercraft - Manned Watercraft - Vessel (Ship) Animal and Plant Collection Device 35518 Shark Stable Isotope Data Published / External Planned Shark tissue stable isotope signatures from Northeast Pacific coastal habitats. Spreadsheet Yes PARR Shark tissue stable isotope signatures from Northeast Pacific coastal habitats. 1 Date_Processed DATE No No Active Date the tissue sample was processed in the laboratory. DATE 2 Sample_Number NUMBER No No Active Laboratory vial number. NUMBER 3 Sample_ID VARCHAR2 No No Active Sample identification number, generally consisting of the first initial of the Genus and species names, respectively, the last two digits of the sampling year, and the sequential number of the individual shark collected in that sampling year. VARCHAR2 4 Species VARCHAR2 No No Active Scientific name (http://www.fishbase.org/search.php). VARCHAR2 Hexanchus griseus, Notorynchus cepedianus, Squalus acanthius. 5 Tissue VARCHAR2 No No Active Tissue type; in this case, all samples consisted of white muscle tissue plugs collected by small 0.5 cubic cm biopsies. VARCHAR2 Muscle. 6 Preservation VARCHAR2 No No Active Tissue preservation method. VARCHAR2 Ethanol, Frozen. 7 d15N NUMBER No No Active Stable isotope ratio of carbon, expressed in typical delta notation form, where d13C = [(Rsample / Rstandard) - 1] 1000. In this equation, R is the ratio of 13C/12C isotope values; Rsample represents the tissue sample ratio and Rstandard represent the universal reference standard: PeeDee Belemnite. NUMBER 8 d13C NUMBER No No Active Stable isotope ratio of nitrogen, expressed in typical delta notation form, where d15N = [(Rsample / Rstandard) - 1] 1000. In this equation, R is the ratio of 15N/14N isotope values; Rsample represents the tissue sample ratio and Rstandard represent the universal reference standard: atmospheric nitrogen gas. NUMBER 9 C:N NUMBER No No Active Ratio of total carbon to total nitrogen in the sample tissue. NUMBER 10 Total_Length NUMBER No No Active Total length, defined as the length from the anterior-most part of the shark to the tip of the longest caudal fin. Units for values are cm. NUMBER cm 11 Weight NUMBER No No Active Total body weight. Units for values are kg. NUMBER kg 12 Sex VARCHAR2 No No Active Sex, as determined by external examination of claspers (http://nefsc.noaa.gov/nefsc/Narragansett/sharks/sexdet.html). VARCHAR2 Male, Female. 13 Collection_Location VARCHAR2 No No Active Location the shark was collected, generally based on place names (bays, points) in Washington State. VARCHAR2 14 Collection_Date DATE No No Active Date the tissue sample was collected from the shark. DATE Data Steward 2025 Person Williams, Gregory D Greg.Williams@noaa.gov 2725 Montlake Boulevard East Seattle WA 98112 206-861-7604 Distributor 2015-10-01 Organization Northwest Fisheries Science Center NWFSC nmfs.nwfsc.metadata@noaa.gov https://ror.org/05r7z1k40 2725 Montlake Boulevard East Seattle WA 98112 USA 206-860-3200 https://www.nwfsc.noaa.gov NWFSC Home Online Resource Metadata Contact 2025 Person Williams, Gregory D Greg.Williams@noaa.gov 2725 Montlake Boulevard East Seattle WA 98112 206-861-7604 Originator 2015-10-01 Person Williams, Gregory D Greg.Williams@noaa.gov 2725 Montlake Boulevard East Seattle WA 98112 206-861-7604 Point of Contact 2025 Person Williams, Gregory D Greg.Williams@noaa.gov 2725 Montlake Boulevard East Seattle WA 98112 206-861-7604 -122.7092 -122.3361 47.8141 47.511 Puget Sound, WA Range 2007-01-07 2014-01-07 -124.1256 -123.8225 46.7503 46.3555 Willapa Bay, WA Range 2007-01-07 2014-01-07 Unclassified Contact me NA https://www.webapps.nwfsc.noaa.gov/apex/parr/shark_stable_isotope_data/data/page/ 2015-10-01 Organization Northwest Fisheries Science Center https://ror.org/05r7z1k40 Shark Stable Isotope Data (RESTful) Shark tissue stable isotope signatures from Northeast Pacific coastal habitats. https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/tables/table/shark_stable_isotope_data 2015-10-01 Organization Northwest Fisheries Science Center https://ror.org/05r7z1k40 Shark Stable Isotope Data Shark tissue stable isotope signatures from Northeast Pacific coastal habitats. https://www.webapps.nwfsc.noaa.gov/apex/parrdata/inventory/datasets/dataset/13481 Predator Gut Isotopes Online Resource Web site NWFSC Dataset Information page. Shark tissue stable isotope signatures from Northeast Pacific coastal habitats. Spreadsheet Medium QA/QC Yes 10 No No No 0 days No Delay NCEI-MD 60 The Northwest Fisheries Science Center facilitates backup and recovery of all data and IT components which are managed by IT Operations through the capture of static (point-in-time) backup data to physical media. Once data is captured to physical media (every 1-3 days), a duplicate is made and routinely (weekly) transported to an offsite archive facility where it is maintained throughout the data's applicable life-cycle. isotope mixing models using R code 35518 Entity gov.noaa.nmfs.inport:18593 SysAdmin InPortAdmin 2013-02-28T14:39:50 SysAdmin InPortAdmin 2026-03-04T19:17:17 2019-06-04 Northwest Fisheries Science Center NWFSC 2725 Montlake Boulevard East Seattle WA 98112 USA 206-860-3200 https://www.nwfsc.noaa.gov 1001 Public No No 2019-06-04 1 Year 2020-06-04