Size fractionated zooplankton, C:N, d13C, and d15N from RRS James Cook cruise JC214 from 2021-05-06 to 2021-05-26 (NCEI Accession 0278613)

This dataset contains chemical and physical data collected on RRS James Cook during cruise JC214 in the North Atlantic Ocean from 2021-05-06 to 2021-05-26. These data include Elemental carbon (C), d13C, d15N, and depth. The instruments used to collect these data include Costech International Elemental Combustion System (ECS) 4010, Isotope-ratio Mass Spectrometer, and MOCNESS. These data were collected by Brian N. Popp of University of Hawaii at Manoa and Hilary G. Close of University of Miami Rosenstiel School of Marine and Atmospheric Science as part of the "Collaborative Research: Isotopic Indicators for Mechanisms of Organic Matter Degradation under High Productivity and High Carbon Flux Conditions (EXPORTS) (EXPORTS OM Degradation Indicators)" project and "EXport Processes in the Ocean from Remote Sensing (EXPORTS)" program. The Biological and Chemical Oceanography Data Management Office (BCO-DMO) submitted these data to NCEI on 2022-09-20.

The following is the text of the dataset description provided by BCO-DMO:

Size fractionated zooplankton, C:N, d13C, and d15N from JC214

Dataset Description:
Acquisition Description:
Sampling was conducted during RRS James Cook cruise JC214 from May 1 to June 1, 2021 in the North Atlantic. Zooplankton were collected using a multiple opening-closing net and environmental sensing system (MOCNESS). Onboard, zooplankton were wet-sieved in filtered seawater using 0.2, 0.5, 1.0, 2.0 and 5.0 mm mesh sieves into different size fractions and frozen at -20º C. Zooplankton were dried and each fraction ground using a mortar and pestle. Samples were weighed into tin capsules and isotope ratios were determined using a Costech elemental combustion system coupled to an isotope ratio mass spectrometer through a Conflo-IV interface. For details please see Hannides et al. (2013).