FN Archimer Export Format PT J TI Variation in Size and Growth of the Great Scallop Pecten maximus along a Latitudinal Gradient BT AF CHAUVAUD, Laurent PATRY, Yann JOLIVET, Aurelie CAM, Emmanuelle LE GOFF, Clement STRAND, Oivind CHARRIER, Gregory THEBAULT, Julien LAZURE, Pascal GOTTHARD, Karl CLAVIER, Jacques AS 1:1;2:1;3:1;4:2,3;5:6,7;6:4;7:5;8:1;9:6,7;10:8;11:1; FF 1:;2:;3:;4:;5:PDG-ODE-DYNECO-BENTHOS;6:;7:;8:;9:PDG-ODE-DYNECO-PHYSED;10:;11:; C1 Univ Bretagne Occidentale, Inst Univ Europeen Mer, Lab Sci Environm Marin, CNRS,UMR 6539, Plouzane, France. CNRS, Ctr Ecol Fonct & Evolut, UMR 5175, F-34033 Montpellier, France. Univ Toulouse 3, CNRS, UMR 5174, Lab Evolut & Divers Biol, F-31062 Toulouse, France. Inst Marine Res, N-5024 Bergen, Norway. Univ Gothenburg, Dept Marine Ecol Tjarno, Stromstad, Sweden. IFREMER, Ctr Brest, LOS, Plouzane, France. IFREMER, Ctr Brest, Lab Phys Hydrodynam & Sedimentaire PHYSED, Plouzane, France. Stockholm Univ, Dept Zool, S-10691 Stockholm, Sweden. C2 UBO, FRANCE CNRS, FRANCE UNIV TOULOUSE, FRANCE INST MAR RES, NORWAY UNIV GOTHENBURG, SWEDEN IFREMER, FRANCE IFREMER, FRANCE UNIV STOCKHOLM, SWEDEN SI BREST SE PDG-RBE-PFOM-PI PDG-ODE-DYNECO-BENTHOS PDG-ODE-DYNECO-PHYSED UBO IN WOS Ifremer jusqu'en 2018 copubli-france copubli-europe copubli-univ-france IF 3.73 TC 43 UR https://archimer.ifremer.fr/doc/00087/19861/17506.pdf LA English DT Article AB Understanding the relationship between growth and temperature will aid in the evaluation of thermal stress and threats to ectotherms in the context of anticipated climate changes. Most Pecten maximus scallops living at high latitudes in the northern hemisphere have a larger maximum body size than individuals further south, a common pattern among many ectotherms. We investigated differences in daily shell growth among scallop populations along the Northeast Atlantic coast from Spain to Norway. This study design allowed us to address precisely whether the asymptotic size observed along a latitudinal gradient, mainly defined by a temperature gradient, results from differences in annual or daily growth rates, or a difference in the length of the growing season. We found that low annual growth rates in northern populations are not due to low daily growth values, but to the smaller number of days available each year to achieve growth compared to the south. We documented a decrease in the annual number of growth days with age regardless of latitude. However, despite initially lower annual growth performances in terms of growing season length and growth rate, differences in asymptotic size as a function of latitude resulted from persistent annual growth performances in the north and sharp declines in the south. Our measurements of daily growth rates throughout life in a long-lived ectothermic species provide new insight into spatio-temporal variations in growth dynamics and growing season length that cannot be accounted for by classical growth models that only address asymptotic size and annual growth rate. PY 2012 PD MAY SO Plos One SN 1932-6203 PU Public Library Science VL 7 IS 5 UT 000305335800073 DI 10.1371/journal.pone.0037717 ID 19861 ER EF