Carbon, nitrogen and sulfur stable isotopes from blood samples of seven predatory species collected aboard R/V E.O. Wilson cruise WI100915BL in the northcentral Gulf of Mexico from 2015-09-19 to 2017-04-21

This dataset contains carbon, nitrogen and sulfur stable isotopes composition from blood plasma samples of seven predatory species collected aboard R/V E.O. Wilson WI100915BL across the north-central Gulf of Mexico from 2015-09-19 to 2017-04-21. Samples were collected from various elasmobranch and teleost species encountered on the bottom longline gear set at multiple sites along the coastlines of Louisiana, Mississippi, and Alabama from fall 2015 through spring 2017. Carbon and nitrogen stable isotope ratios were measured with a PDZ Europa ANCA-GSL elemental analyzer interfaced to a PDZ Europa 20-20 isotope ratio mass spectrometer (Sercon Ltd., Cheshire, UK) at the University of California, Davis (UCD) Stable Isotope Facility. Measurements of sulfur stable isotopic ratios were made by the elemental analyzer (ECS 4010, Costech Analytical, Valencia, CA) and analyzed with a continuous flow isotope ratio mass spectrometer (Delta PlusXP, Thermofinnigan, Bremen) at the Washington State University (WSU) Stable Isotope Core Laboratory. The cruise documentation was provided for the R/V E.O. Wilson cruise WI100915BL, led by chief scientist Dr. Marcus Drymon.