36832 Nearshore N and C Isotopes 2011-2012 Entity Published / External 18607 Stable isotope database - Transport and fate of nutrient and pathogen loadings into nearshore Puget Sound: consequences for shellfish growing areas Data Set Planned Natural abundance levels of N and C isotopes measured in riparian plants, saltmarsh plants, suspended particulate organic matter, marine alga and Pacific Oysters in the Samish, Dosewallips, and Hamma River estuaries. Objective was to quantify the relative contribution of terrestrial, estuarine and marine C and N supporting commercial oyster populations and how this relationship varied across three river basins. Spreadsheet Yes PARR Natural abundance levels of N and C isotopes measured in riparian plants, saltmarsh plants, suspended particulate organic matter, marine alga and Pacific Oysters in the Samish, Dosewallips, and Hamma River estuaries. Objective was to quantify the relative contribution of terrestrial, estuarine and marine C and N supporting commercial oyster populations and how this relationship varied across three river basins. 1 Watershed VARCHAR2 No No Active Catchment where samples were collected. These were commercial beds located in estuaries near the confluence of each river basin. River and riparian samples collected upstream of estuary in river dominated habitat. VARCHAR2 2 Site VARCHAR2 No No Active Where samples were collected within the catchment: oyster bed, river, saltmarsh ecosystem types. VARCHAR2 3 Date_Collected DATE No No Active Date samples were collected. DATE 4 Date_Submitted DATE No No Active Date samples were sent to the laboratory. DATE 5 Species VARCHAR2 No No Active Species or sample type. VARCHAR2 6 Replicate NUMBER No No Active Replicate within species or sample type. Units for values are count. NUMBER count 7 Delta C NUMBER No No Active The concentration in per mil (parts per thousands) of C13 in each sample. Studies examining stable isotopes at or near natural abundance levels are usually reported as delta, a value given in parts per thousand or per mil ("o/oo"). Delta values are not absolute isotope abundances but differences between sample readings and one or another of the widely used natural abundance standards which are considered delta = zero (e.g. air for N, At%15N = 0.3663033; Pee Dee Belemnite for C, At%13C = 1.1112328). Isotope samples with no value and "." are samples with concentrations beyond the standard values so could not be determining. Units for values are per mil or parts per thousand. NUMBER per mil or parts per thousand 8 Delta N NUMBER No No Active The concentration in per mil (parts per thousands) of N15 in each sample. See above for more detail. Units for values are per mil or parts per thousand. NUMBER per mil or parts per thousand 9 C Percent NUMBER No No Active The concentration percent of carbon (C) in each sample. Units for values are percentage (%). NUMBER percentage (%) 10 N Percent NUMBER No No Active The concentration percent of nitrogen (N) in each sample. Units for values are percentage (%). NUMBER percentage (%) 11 C:N NUMBER No No Active Ratio of percent C to N. NUMBER 12 Length NUMBER No No Active Length of oyster in millimeter but caution should be taken with these data as they include fouling organisms that could not be removed. Units for values are millimeter. NUMBER millimeter 13 Lat NUMBER No No Active Geospatial coordinates of sample location. Units for values are spatial coordinate. NUMBER spatial coordinate 14 Long NUMBER No No Active Geospatial coordinates of sample location. Units for values are spatial coordinate. NUMBER spatial coordinate 15 Weight NUMBER No No Active Weight of oyster in grams but caution should be taken with these data as they include fouling organisms that could not be removed. Units for values are grams. NUMBER grams 16 Tissue_Type VARCHAR2 No No Active Oyster tissue sampled for analysis. VARCHAR2 17 Ploidy VARCHAR2 No No Active Number of genetic chromosomes but ploidy should be used with caution because we assigned them based on their location in the oyster bed. VARCHAR2 gov.noaa.nmfs.inport:36832 Jeffrey Cowen 2017-02-16T19:25:01 SysAdmin InPortAdmin 2022-08-09T17:11:01 2018-02-27 Northwest Fisheries Science Center NWFSC 2725 Montlake Boulevard East Seattle WA 98112 USA 206-860-3200 https://www.nwfsc.noaa.gov 1001 Public No 2018-02-27 1 Year 2019-02-27