Temperature and pCO2 effect on the bioaccumulation of radionuclides and trace elements in the eggs of the common cuttlefish, Sepia officinalis

• Published in: Journal of Experimental Marine Biology and Ecology
• Main Authors: Lacoue-Labarthe, Thomas, Martin, Sophie, Oberhänsli, François, Teyssié, Jean-Louis, Jeffree, Ross, Gattuso, Jean-Pierre, Bustamante, Paco
• Other Authors: LIttoral ENvironnement et Sociétés (LIENSs), La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS), Marine Environment Laboratories Monaco (IAEA-MEL), International Atomic Energy Agency Vienna (IAEA), Laboratoire d'océanographie de Villefranche (LOV), Observatoire océanologique de Villefranche-sur-mer (OOVM), Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Ecogéochimie et Fonctionnement des Ecosystèmes Benthiques (EFEB), Adaptation et diversité en milieu marin (AD2M), Station biologique de Roscoff Roscoff (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Station biologique de Roscoff Roscoff (SBR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2012
• Subjects: cephalopod; ocean acidification; ocean warming; eggshell; embryonic development; metal; [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology; Ocean acidification
• Online Access: https://hal.science/hal-00659887; https://hal.science/hal-00659887/document; https://hal.science/hal-00659887/file/Lacoue-Labarthe_et_al._JEMBE_2012.pdf; https://doi.org/10.1016/j.jembe.2011.11.025

International audience The increasing release of CO2 by human activities leads to ocean acidification and global warming. Both those consequences (i.e., increase in seawater pCO2 and temperature) may drastically affect physiology of marine organisms. The effects of low pH and elevated temperature on the bioaccumulation of radionuclides (241Am, 134Cs) and trace elements (60Co, 54Mn or 75Se) were studied during the embryonic development of the common cuttlefish Sepia officinalis. The lowered accumulation of essential 60Co and 54Mn with decreasing pH was larger at 16°C than at 19°C. Se was not detected in the embryo whereas it penetrated through the eggshell, suggesting that an alternative pathway ensures the supply of this essential metal for the embryo. 241Am was totally retained by the eggshell irrespective of pH and temperature. Finally, the amount of Cs found in the peri-vitelline fluid increased with decreasing pH likely because of an enhanced swelling of the cuttlefish egg under elevated CO2.