FN Archimer Export Format
PT J
TI Energy allocation trade-offs between life-history traits in the Mediterranean sardine: an ecophysiological approach
BT 
AF BEAUVIEUX, Anais
   Queiros, Q
   METRAL, Luisa
   DUTTO, Gilbert
   GASSET, Eric
   Criscuolo, F
   FROMENTIN, Jean-Marc
   SARAUX, Claire
   SCHULL, Quentin
AS 1:1;2:1,2;3:1;4:1;5:1;6:3;7:1;8:1,3;9:1;
FF 1:;2:;3:PDG-RBE-MARBEC-LHM;4:PDG-RBE-MARBEC-LSEA;5:PDG-RBE-MARBEC-LAAAS;6:;7:PDG-RBE-MARBEC;8:PDG-RBE-MARBEC-LHM;9:PDG-RBE-MARBEC-LHM;
C1 MARBEC, Univ Montpellier, Ifremer, IRD, CNRS, 34200 Sète, France
   DECOD, INRAE, Institut Agro, IFREMER, 35000 Rennes, France
   IPHC-CNRS & Université De Strasbourg, 67200 Strasbourg, France
C2 IFREMER, FRANCE
   INRAE, FRANCE
   UNIV STRASBOURG, FRANCE
SI SETE
   PALAVAS
SE PDG-RBE-MARBEC
   PDG-RBE-MARBEC-LHM
   PDG-RBE-MARBEC-LSEA
   PDG-RBE-MARBEC-LAAAS
UM MARBEC
   DECOD
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-p187
   copubli-univ-france
IF 2.5
TC 4
UR https://archimer.ifremer.fr/doc/00807/91928/97884.pdf
LA English
DT Article
DE ;Compensatory growth;Capital breeder;Individual quality;Oxidative stress;Reproduction;Maintenance;Sardina pilchardus
AB Since 2008, there has been a major decrease in the numbers of old and large sardines in the Gulf of Lions, which has had a major effect on regional fisheries. A bottom-up process involving a shift in diet towards smaller planktonic prey has been suggested as the main driver of this development. Yet, the reproductive capacities of the sardines have not changed, suggesting potential modifications in energy allocation trade-offs. Whether this could also affect maintenance, in particular at the end of the winter reproductive period, and explain the lower adult survival and the disappearance of older individuals remains unclear. We therefore experimentally investigated the consequences of seasonal food availability (summer vs. winter) on life-history traits and energy allocation trade-offs at the individual and population levels. Our results indicate that food resources during summer had a major effect on energy reserves and growth, limiting the maximum size and body condition reached at the end of reproduction. In addition, food restrictions during growth and/or reproduction periods led to physiological costs mediated by increased oxidative damage. Mediterranean sardines did not show any ability for compensatory growth and did not appear to be capital breeders. Instead, they displayed individual differences in coping with physiological constraints and displayed various life-history strategies regardless of food availability. We highlighted 3 main individual energy allocation strategies: (1) preferential allocation to body condition or (2) to growth, or (3) simultaneous allocation to reproduction and growth. These issues are key, as climate change is expected to favour smaller phytoplankton, which might amplify the deterioration in the condition of pelagic fish. 
PY 2022
PD NOV
SO Marine Ecology Progress Series
SN 0171-8630
PU Inter-Research Science Center
VL 701
UT 000890683700007
BP 99
EP 118
DI 10.3354/meps14183
ID 91928
ER

EF