Stable isotope data for Stomiiform fishes from the MAFIA cruise (April 2015)

• Main Authors: Bode, Antonio, Olivar, M Pilar, López-Pérez, Cristina, Hernández-León, Santiago
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Alanine; δ15N; amino acids; Aspartamine and Aspartic acid; BATHYPELAGIC; Biomass and Active Flux in the Bathypelagic Zone; Carbon/Nitrogen ratio; carbon isotope ratio (δ13C); Central Atlantic; DATE/TIME; DEPTH; water; Elemental analyser - isotope ratio mass spectrometry; Event label; Family; fish; Gas chromatography - Isotope ratio mass spectrometer (GC-IRMS); Glutamine and Glutamic acid; Glycine; GRC-EPB; Hespérides; ICM_Excellence_Centre; Isoleucine; Latitude of event; Length; standard; Leucine; Longitude of event; Lysine; MAFIA; MAFIA_PEL_10D; MAFIA_PEL_10N; MAFIA_PEL_12N; MAFIA_PEL_7N; MAFIA_PEL_8D; MAFIA_PEL_8N; MAFIA_PEL_9D; North Atlantic
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.932001; https://doi.org/10.1594/PANGAEA.932001

The values of natural abundance of stable isotopes were measured in 13 micronekton fish species sampled during the MAFIA cruise (North Atlantic, April 2015). This dataset contains the values obtained for carbon and nitrogen in bulk tissues, and nitrogen values in amino acids. Length data and the number of individuals analysed for each species are also provided. Mesopelagic 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). For C:N and stable isotope analyses, 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.