Ocean acidification and temperature rise: effects on calcification during early development of the cuttlefish Sepia officinalis

Type : ACL
Nature : Production scientifique
Au bénéfice du Laboratoire : Oui
Statut de publication : Publié
Année de publication : 2013
Auteurs (8) : DOREY Narimane MELZNER Frank MARTIN Sophie OBERHAENSLI Francois TEYSSIÉ J-l BUSTAMENTE P GATTUSO Jean-pierre LACOUE-LABARTHE Thomas
Revue scientifique : Marine Biology
Volume : 160
Fascicule : 8
Pages : 2007-2022
DOI : 10.1007/s00227-012-2059-6
URL : <go to isi>://wos:000323066600021
Abstract : This study investigated the effects of seawater pH (i.e., 8.10, 7.85 and 7.60) and temperature (16 and 19 A degrees C) on (a) the abiotic conditions in the fluid surrounding the embryo (viz. the perivitelline fluid), (b) growth, development and (c) cuttlebone calcification of embryonic and juvenile stages of the cephalopod Sepia officinalis. Egg swelling increased in response to acidification or warming, leading to an increase in egg surface while the interactive effects suggested a limited plasticity of the swelling modulation. Embryos experienced elevated pCO(2) conditions in the perivitelline fluid (> 3-fold higher pCO(2) than that of ambient seawater), rendering the medium under-saturated even under ambient conditions. The growth of both embryos and juveniles was unaffected by pH, whereas Ca-45 incorporation in cuttlebone increased significantly with decreasing pH at both temperatures. This phenomenon of hypercalcification is limited to only a number of animals but does not guarantee functional performance and calls for better mechanistic understanding of calcification processes.
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Commentaire : Times Cited: 5 Bustamante, Paco/G-5833-2011 Bustamante, Paco/0000-0003-3877-9390 Si 5
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Citation :
Dorey N, Melzner F, Martin S, Oberhaensli F, Teyssié J-L, Bustamente P, Gattuso J-P, Lacoue-Labarthe T (2013) Ocean acidification and temperature rise: effects on calcification during early development of the cuttlefish Sepia officinalis. Mar Biol 160: 2007-2022 | doi: 10.1007/s00227-012-2059-6