FN Archimer Export Format
PT J
TI Concomitant changes in the Environment and small pelagic fish community of the Gulf of Lions
BT 
AF Feuilloley, Guillaume
   Fromentin, Jean-Marc
   Stemmann, Lars
   Demarcq, Herve
   Estournel, Claude
   Saraux, Claire
AS 1:1;2:1;3:2;4:5;5:3;6:1,5;
FF 1:PDG-RBE-MARBEC-LHM;2:PDG-RBE-MARBEC;3:;4:;5:;6:PDG-RBE-MARBEC-LHM;
C1 MARBEC, Univ. Montpellier, Ifremer, IRD, CNRS, Sète, France
   LOV, Observatoire Océanologique, UMR7093, UPMC Univ Paris 06, 06234 Villefranche/mer, France
   Laboratoire d’Aérologie, Univ Toulouse, CNRS, UPS, UMR 5560, 31400 Toulouse, France
   IPHC, Univ Strasbourg, CNRS, 7178, DEPE, 67000 Strasbourg, France
   MARBEC, Univ. Montpellier, Ifremer, IRD, CNRS, Sète, France
C2 IFREMER, FRANCE
   UNIV PARIS 06, FRANCE
   CNRS, FRANCE
   CNRS, FRANCE
   IRD, FRANCE
SI SETE
SE PDG-RBE-MARBEC-LHM
   PDG-RBE-MARBEC
UM MARBEC
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   copubli-france
   copubli-p187
   copubli-univ-france
IF 4.08
TC 38
UR https://archimer.ifremer.fr/doc/00631/74339/73991.pdf
LA English
DT Article
CR PELMED - PELAGIQUES MEDITERRANÉE
DE ;Environmental change;Bottom-up control;Chlorophyll-a;Small pelagic fish;Northwestern Mediterranean Sea
AB An important decrease in small pelagic fish condition and size has been observed in the most productive ecosystem of the Mediterranean Sea, the Gulf of Lions, since 2008, leading to an important fishery crisis. Previous studies suggested bottom-up control to be the most probable cause for these changes. Here, we investigate whether an environmental change might have caused such a situation. In the absence of zooplankton time series, this study aims at describing temporal changes in key abiotic factors for the planktonic and fish production of the Gulf of Lions, such as SST, meso-scale fronts, wind-induced coastal upwelling, river discharge, water stratification and deep convection and then at understanding potential link on Chl-a concentration as well as small pelagic fish populations. Our results indicate that the environmental conditions have broadly changed in the Gulf of Lion, with a major change in the mid-2000s, affecting the Chla concentration (which showed a regime shift in 2007), but also the SST, the upwelling and frontal activities, the Rhone river discharge (and particularly the N and P nutrients inputs) as well as the deep winter convection. Those changes could have affected the plankton production and consequently the small pelagic fish community that displayed similar patterns of variations as the environmental conditions. 
PY 2020
PD JUN
SO Progress In Oceanography
SN 0079-6611
PU Elsevier BV
VL 186
UT 000552124300015
DI 10.1016/j.pocean.2020.102375
ID 74339
ER

EF