FN Archimer Export Format
PT J
TI How membrane fatty acids influence sardine size across diverse marine environments
BT 
AF Mathieu-Resuge, Margaux
   Brosset, Pablo
   Sardenne, Fany
   Soudant, Philippe
   Le Grand, Fabienne
   Schull, Quentin
   Lebigre, Christophe
AS 1:1,2,3;2:2,4;3:7;4:6;5:1;6:5;7:2;
FF 1:PDG-REM-BEEP-LEP;2:;3:;4:;5:;6:PDG-RBE-MARBEC-LHM;7:PDG-RBE-HALGO-LBH;
C1 Univ Brest, CNRS, IRD, Ifremer, UMR 6539, LEMAR, Plouzane, France
   UMR DECOD (Ecosystem Dynamics and Sustainability), Ifremer, INRAE, Institut Agro, Plouzané, France
   Univ Brest, CNRS, IRD, Ifremer, UMR 6197, Biologie et Ecologie des Ecosystèmes marins Profonds, F-29280 Plouzané, France
   UMR DECOD (Ecosystem Dynamics and Sustainability), Institut Agro, Ifremer, INRAE, Rennes, France
   MARBEC, Université de Montpellier, Ifremer, IRD, CNRS, Sète, France
   Univ Brest, CNRS, IRD, Ifremer, UMR 6539, LEMAR, Plouzane, France
   Univ Brest, CNRS, IRD, Ifremer, UMR 6539, LEMAR, Plouzane, France
C2 UBO, FRANCE
   IFREMER, FRANCE
   IFREMER, FRANCE
   INST AGRO RENNES-ANGERS, FRANCE
   IFREMER, FRANCE
   CNRS, FRANCE
   IRD, FRANCE
SI BREST
   SETE
SE PDG-REM-BEEP-LEP
   PDG-RBE-MARBEC-LHM
   PDG-RBE-HALGO-LBH
UM BEEP-LM2E
   LEMAR
   MARBEC
   DECOD
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-p187
   copubli-univ-france
IF 4.1
TC 0
UR https://archimer.ifremer.fr/doc/00875/98724/108228.pdf
   https://archimer.ifremer.fr/doc/00875/98724/108275.docx
LA English
DT Article
CR CGFS : CHANNEL GROUND FISH SURVEY
   EVHOE EVALUATION HALIEUTIQUE OUEST DE L'EUROPE
   PELMED - PELAGIQUES MEDITERRANÉE
DE ;Ecophysiology;European sardines;Fatty acids;Lipids
AB Differences in diet quality and quantity may influence trophodynamic processes in small pelagic fish. Yet, we currently lack direct and comprehensive information on how large-scale areas differ in dietary resources and the degree to which these differences influence fish physiological performances (i.e., growth), ultimately influencing entire fish stocks. Fatty acid composition is one of the bioindicator that can provide insights on how dietary provisions of essential lipids influence the structure of the membrane fatty acids and subsequently fish growth among contrasted habitats. To address this issue, we conducted a large-scale sampling of European sardine (Sardina pilchardus) a species with major socio-economic importance that plays a key role as an energy pathway linking lower and upper trophic levels in pelagic ecosystems. We sampled individuals from the Gulf of Lions (Mediterranean Sea), the Bay of Biscay, and the English Channel (Atlantic Ocean) of age-0 to -3+and found clear spatial differences in the quantity and quality of dietary lipids. Sardines from the Gulf of Lions fed on trophic food web based on dinoflagellates, with greater proportions of DHA (22:6n-3; docosahexaenoic acid) in reserve lipids. Sardines’ reserve lipids had important proportions of zooplankton biomarkers in the English Channel (e.g., 20:1n-9 and 20:1n-11), and diatoms biomarkers such as 16C fatty acids and EPA (20:5n-3; eicosapentaenoic acid) in the Bay of Biscay. The relationship between sardines’ membrane fatty acid composition and individuals’ length changed progressively with individuals’ age, a result consistent across areas, indicating ontogenetic abilities between largest and smallest individuals. Before maturity, largest sardines had higher DHA proportions, followed after maturity by higher proportions of ARA (20:4n-6; arachidonic acid), EPA and DPA (22:5n-3; docosapentaenoic acid). Finally, the study highlights the importance of considering the quality and diversity of dietary resources to better understand how individuals cope with their physiological needs. It is thus important to consider combined aspects (e.g., diet quality and diversity, influence of particular nutrients on length) to better understand the underlying mechanistic processes influencing fish physiology, likely cascading to different expression of their life history traits and affecting fisheries stocks. 
PY 2024
PD FEB
SO Progress In Oceanography
SN 0079-6611
PU Elsevier BV
VL 221
UT 001178770400001
DI 10.1016/j.pocean.2024.103209
ID 98724
ER

EF