Stable C and N isotope data for cetacea collected in the Macaronesian region between 1996 and 2018


This dataset provides the values of stable carbon and nitrogen stable isotopes in bulk muscle samples of 11 species of cetacea from the Macaronesian regions (Canary, Madeira, and Azores Islands) collected between 1996 and 2018. The values of nitrogen stable isotopes in amino acids of muscle samples of the common dolphin (Delphinus delphis) were also provided. The samples were collected from stranded animals by trained personnel. Cetacean samples were obtained from necropsies of stranded cetaceans following a standard protocol defined by the European Cetacean Society (after Kuiken and García Hartmann 1991). Additional data included body length, age (adult, juvenile) and sex for each animal, along with carbon, nitrogen, and lipid content of muscle samples. Isotope data for bulk samples included values for samples with and without lipids. Exact latitude and longitude coordinates for each sample are not available, geographical position of the center of a circle including each island is given instead. Samples were freeze dried or dried (60°C, 48h) before analysis. Stable isotopes in bulk muscle samples were analysed in an isotope-ratio mass spectrometer coupled to an elemental analyser. Aliquots of each sample were analysed whole or after lipid extraction with trichloromethane:methanol (Bligh and Dyer, 1959). Stable nitrogen isotopes in amino acids were analysed after hydrolisis and derivatization of samples in an isotope-ratio mass spectrometer coupled to a gas chromatograph. Details on the analytical procedures can be found in Bode et al. (2021).

This research was supported by the Madeira Cetacean Stranding Network (RACAM) of the Machico Municipality, Madeira, Portugal.

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Creator Bode, Antonio; Saavedra, Camilio; Álvarez-González, Miguel; Arregui, Marina; Arbelo, Manuel; Fernández, A; Freitas, Luís; Silva, Mónica A; Prieto, Rui; Azevedo, José M.N.; Giménez, Joan; Pierce, Graham J; Santos, M. Begoña
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2022
Funding Reference Agencia Estatal de Investigación, PID2020 115620RB 100; European Commission, 11 0661 2017 750679 SUB ENV C2; European Commission, 817806; European Commission, ACORES 01 0145 FEDER 000140; European Commission, MAC 1 1b 149; European Commission, MAC2 4 6c 392; Fundação para a Ciência e Tecnologia, IF 00943 2013 CP1199 CT0001; Fundação para a Ciência e Tecnologia, M2 1 2 F 012 2011; Fundação para a Ciência e Tecnologia, PTDC MAR 74071 2006; Fundação para a Ciência e Tecnologia, UIDB 05634 2020; Ministerio de Ciencia e Innovación, CEX2019 000928 S; Ministerio de Ciencia e Innovación, FJC2019 040016 I; Ministerio de Economía y Competitividad, Commission 28 5307; Regional Secretariat for the Sea, Science and Technology, Government of Azores, M1 1 A REEQ CIENTÍFICO UI D 2021 010
Rights Data access is restricted (moratorium, sensitive data, license constraints)
OpenAccess false
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 2379 data points
Discipline Earth System Research
Spatial Coverage (-28.707W, 27.971S, -13.514E, 38.748N); Faial, Azores Islands, Portugal; Fuerteventura, Canary Islands, Spain; Gran Canaria, Canary Islands, Spain; La Gomera, Canary Islands, Spain; La Graciosa, Canary Islands, Spain; La Palma, Canary Islands, Spain; Lanzarote, Canary Islands, Spain; Madeira, Madeira Islands, Portugal; Pico, Azores Islands, Portugal; Porto Santo, Madeira Islands, Portugal; Sao Miguel, Azores Islands, Portugal; Tenerife, Canary Islands, Spain; Terceira, Azores Islands, Portugal
Temporal Coverage Begin 2000-02-29T00:00:00Z
Temporal Coverage End 2018-08-03T00:00:00Z