Variability in tissue-specific trophic discrimination factors (∆13C and ∆15N) between Antarctic krill Euphausia superba and free-ranging Pygoscelis penguins

• Published in: Polar Biology
• Main Authors: Ceia, Filipe, Cherel, Yves, Seco, José, Barbosa, Andrés, Chipev, Nesho, Xavier, José
• Other Authors: Marine and Environmental Sciences Centre (MARE UC), Universidade de Coimbra Coimbra, Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC), La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), CESAM & Department of Chemistry, Universidade de Aveiro, Departamento de Ecología Evolutiva (Museo Nacional de Ciencias Naturales), Museo Nacional de Ciencias Naturales Madrid (MNCN), Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC)-Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC), Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences (BAS)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2021
• Subjects: Carbon; Nitrogen; Stable isotopes; Chinstrap; Gentoo; Isotopic variability; [SDE]Environmental Sciences; Antarctic; Livingston Island; Antarc*; Antarctic Krill; Antarctica; Euphausia superba; Polar Biology; Pygoscelis antarctica
• Online Access: https://hal.science/hal-03292361; https://doi.org/10.1007/s00300-021-02889-2

International audience For top consumers in marine environments, trophic discrimination factors (Δ13C and Δ15N) between food and consumers’tissues are expected to be similar among related species. However, few studies conducted in the laboratory indicate a largevariability among species, which shoul...