Natural abundance of stable isotopes in micronekton fish species from the BATHYPELAGIC cruise (North Atlantic, June 2018): carbon and nitrogen values in bulk tissues and nitrogen values in amino acids


The values of natural abundance of stable isotopes were measured in 13 micronekton fish species sampled during the BATHYPELAGIC cruise (North Atlantic, June 2018). This dataset contains the values obtained for carbon and nitrogen in bulk tissues, and nitrogen values in amino acids. Length and biomass data for each individual analyzed are also provided. Fishes were collected using a ''Mesopelagos” net (5x7 m mouth opening, 58 m total lenght) equipped with graded-mesh netting (starting with 30 mm and ending with 4 mm) and a multi-sampler for collecting samples from 5 different depth layers (Olivar et al., 2017). Individual fish were eviscerated, freeze-dried and weighted. Aliquots of muscular tissue (or whole individuals for species of small size) were analyzed in an elemental analyzer (bulk tissues, Olivar et al., 2019) or a gas chromatograph (derivatized amino acids, Mompeán et al., 2016) coupled to isotope-ratio mass spectrometers. Carbon analyses were made before and after removal of lipids with a mixture of trichloromethane:methanol:water.

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Metadata Access
Creator Bode, Antonio ORCID logo; Olivar, M Pilar ORCID logo; Hernández-León, Santiago ORCID logo
Publisher PANGAEA
Publication Year 2021
Funding Reference Axencia Galega de Innovación, Xunta de Galicia Crossref Funder ID IN607A2018/2 GRC-EPB; Horizon 2020 Crossref Funder ID 817578 Tropical and South Atlantic climate-based marine ecosystem predictions for sustainable management; Horizon 2020 Crossref Funder ID 817806 Sustainable management of mesopelagic resources; Ministerio de Economía y Competitividad Crossref Funder ID CTM2016-78853-R Biomass and Active Flux in the Bathypelagic Zone
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 1501 data points
Discipline Earth System Research
Spatial Coverage (-23.194W, 20.892S, -19.774E, 55.377N); North Atlantic
Temporal Coverage Begin 2018-05-27T00:36:00Z
Temporal Coverage End 2018-06-20T23:49:00Z