<?xml version="1.0" encoding="UTF-8"?><!--*** Generated from internal PANGAEA metadata schema by dif.xslt ***--><DIF xsi:schemaLocation="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/ http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.4.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/">
<Entry_ID>PANGAEA_985234</Entry_ID>
<Entry_Title>Natural abundance of stable carbon and nitrogen isotopes of small pelagic fishes from the northern Iberian shelf (NE Atlantic) between 1998 and 2024</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Bode, Antonio; García-Seoane, Rita; Viana, Inés G; Carrera, Pablo; Riveiro, Isabel; Lamas, Ángel F</Dataset_Creator>
<Dataset_Title>Natural abundance of stable carbon and nitrogen isotopes of small pelagic fishes from the northern Iberian shelf (NE Atlantic) between 1998 and 2024</Dataset_Title>
<Dataset_Release_Date>2025-10-16</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.985234</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>Antonio</First_Name>
<Last_Name>Bode</Last_Name>
<Email>antonio.bode@ieo.csic.es</Email>
</Personnel>
<Discipline>
<Discipline_Name>Earth Science</Discipline_Name>
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<Parameters>
<Detailed_Variable>Event label</Detailed_Variable>
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<Parameters>
<Detailed_Variable>DATE/TIME</Detailed_Variable>
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<Parameters>
<Detailed_Variable>LATITUDE</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>LONGITUDE</Detailed_Variable>
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<Parameters>
<Detailed_Variable>Species</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Sample ID</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Size</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Weight, total, wet</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Sex</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Stage</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>δ15N, bulk muscle tissue</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>δ13C, bulk muscle tissue</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Carbon/Nitrogen, molar ratio</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>δ15N, bulk gut content</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>δ13C, bulk gut content</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Alanine, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Glycine, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Threonine, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Serine, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Valine, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Leucine, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Isoleucine, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Proline, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Aspartamine and Aspartic acid, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Methionine, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Glutamine and Glutamic acid, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Phenylalanine, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Lysine, δ15N</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Alanine</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Glycine</Detailed_Variable>
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<Detailed_Variable>Threonine</Detailed_Variable>
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<Detailed_Variable>Serine</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Valine</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Leucine</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Isoleucine</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Proline</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Aspartamine and Aspartic acid</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Methionine</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Glutamine and Glutamic acid</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Phenylalanine</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Lysine</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>amino acids</Keyword>
<Keyword>Carbon</Keyword>
<Keyword>Midwater trawl</Keyword>
<Keyword>NE Atlantic</Keyword>
<Keyword>Nitrogen</Keyword>
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<Keyword>small pelagic fishes</Keyword>
<Keyword>stable isotope data</Keyword>
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<Long_Name>Thalassa</Long_Name>
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<Source_Name>
<Long_Name>Miguel Oliver</Long_Name>
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<Long_Name>Vizconde de Eza</Long_Name>
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<Stop_Date>2024-04-16</Stop_Date>
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<Southernmost_Latitude>40.43985</Southernmost_Latitude>
<Northernmost_Latitude>45.6</Northernmost_Latitude>
<Westernmost_Longitude>-9.5133</Westernmost_Longitude>
<Easternmost_Longitude>-1.44016666666667</Easternmost_Longitude>
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<Data_Center_Name>
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<Data_Center_URL>https://www.pangaea.de/</Data_Center_URL>
<Personnel>
<Role>Data Center Contact</Role>
<First_Name>Michael</First_Name>
<Last_Name>Diepenbroek</Last_Name>
<Email>info@pangaea.de</Email>
<Contact_Address>
<Address>Leobener Str.</Address>
<City>Bremen</City>
<Province_or_State>Bremen</Province_or_State>
<Postal_Code>28359</Postal_Code>
<Country>Germany</Country>
</Contact_Address>
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<Distribution>
<Distribution_Media>online</Distribution_Media>
<Distribution_Size>17867 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
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<Reference>Bode, Antonio; Alvarez-Ossorio, María Teresa; Cunha, M Emilia; Garrido, Susana; Peleteiro, J Benito; Porteiro, Carmela; Valdés, Luis; Varela, Manuel (2007): Stable nitrogen isotope studies of the pelagic food web on the Atlantic shelf of the Iberian Peninsula. Progress in Oceanography, 74(2-3), 115-131, https://doi.org/10.1016/j.pocean.2007.04.005</Reference>
<Reference>Bode, Antonio; Carrera, Pablo; González-Nuevo, Gonzalo; Nogueira, Enrique; Riveiro, Isabel; Santos, M Begoña (2018): A trophic index for sardine (Sardina pilchardus) and its relationship to population abundance in the southern Bay of Biscay and adjacent waters of the NE Atlantic. Progress in Oceanography, 166, 139-147, https://doi.org/10.1016/j.pocean.2017.08.005</Reference>
<Reference>Bode, Antonio; García-Seoane, Rita; Viana, Inés G; Carrera, Pablo; Riveiro, Isabel; Lamas, Ángel F; Otero, Jaime (submitted): Decadal variability of trophic indices for Sardina pilchardus from the northern Iberian shelf (NE Atlantic).</Reference>
<Reference>Bode, Antonio; Olivar, M Pilar; Hernández-León, Santiago (2021): Trophic indices for micronektonic fishes reveal their dependence on the microbial system in the North Atlantic. Scientific Reports, 11, 8488, https://doi.org/10.1038/s41598-021-87767-x</Reference>
<Summary>This dataset contains the values of natural abundance of stable carbon and nitrogen isotopes in bulk muscle and gut contents, and nitrogen isotopes in muscle amino acids measured in 1801 samples of 10 small pelagic fish species sampled during the PELACUS spring cruises in the northwestern Iberian shelf and in adjacent waters of the southern Bay of Biscay. Length, weight, sex and maturity stage data for each individual analyzed are also provided. Fishes were collected by midwater trawls of ca. 30 m2 pelagic net equipped with a graded-mesh netting (starting with 30 mm and ending with 4 mm). The duration of each trawl was between 25 and 40 min. Different species occurred in the same trawls. Samples of muscle tissue and gut contents were preserved dried (50°C, 48 h) or freeze-dried. No treatments for lipid removal were used prior to carbon analyses. Stable isotope determinations in bulk samples (also carbon and nitrogen contents) were made by isotope-ratio mass spectrometry coupled to an elemental analyzer (Bode et al. 2018). Stable nitrogen isotopes in amino acids were determined by isotope-ratio mass spectrometry couples to a gas chromatograph (Bode et al., 2021). ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.985234"! ** Data was additionally funded by PELACUS (1998-1999) project.</Summary>
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<DIF_Creation_Date>2025-10-16</DIF_Creation_Date>
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