FN Archimer Export Format
PT J
TI Spatial Structure and Distribution of Small Pelagic Fish in the Northwestern Mediterranean Sea
BT 
AF SARAUX, Claire
   FROMENTIN, Jean-Marc
   BIGOT, Jean-Louis
   BOURDEIX, Jean-Herve
   MORFIN, Marie
   ROOS, David
   VAN BEVEREN, Elisabeth
   BEZ, Nicolas
AS 1:1;2:1;3:1;4:1;5:1;6:1;7:1;8:2;
FF 1:PDG-RBE-HM-RHSETE;2:PDG-RBE-HM-RHSETE;3:PDG-RBE-HM-RHSETE;4:PDG-RBE-HM-RHSETE;5:PDG-RBE-HM-RHSETE;6:PDG-RBE-DOI;7:PDG-RBE-HM-RHSETE;8:;
C1 IFREMER Inst Francais Rech Exploitat MER, Res Unit EME, UMR 212, Sete, France.
   IRD Inst Rech Dev, Res Unit EME, UMR 212, Sete, France.
C2 IFREMER, FRANCE
   IRD, FRANCE
SI SETE
   LA REUNION
SE PDG-RBE-HM-RHSETE
   PDG-RBE-DOI
   IRD
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-france
   copubli-p187
IF 3.234
TC 51
TU IFREMER
   IRD
   UNIVERSITE MONTPELLIER
UR https://archimer.ifremer.fr/doc/00226/33739/32151.pdf
   https://archimer.ifremer.fr/doc/00226/33739/32152.pdf
LA English
DT Article
CR PELMED 2003
   PELMED 2004
   PELMED 2005
   PELMED 2006
   PELMED 2007
   PELMED 2008
   PELMED 2009
   PELMED 2010
   PELMED 2011
   PELMED 2012
BO L'Europe
AB Understanding the ecological and anthropogenic drivers of population dynamics requires detailed studies on habitat selection and spatial distribution. Although small pelagic fish aggregate in large shoals and usually exhibit important spatial structure, their dynamics in time and space remain unpredictable and challenging. In the Gulf of Lions (north-western Mediterranean), sardine and anchovy biomasses have declined over the past 5 years causing an important fishery crisis while sprat abundance rose. Applying geostatistical tools on scientific acoustic surveys conducted in the Gulf of Lions, we investigated anchovy, sardine and sprat spatial distributions and structures over 10 years. Our results show that sardines and sprats were more coastal than anchovies. The spatial structure of the three species was fairly stable over time according to variogram outputs, while year-to-year variations in kriged maps highlighted substantial changes in their location. Support for the McCall's basin hypothesis (covariation of both population density and presence area with biomass) was found only in sprats, the most variable of the three species. An innovative method to investigate species collocation at different scales revealed that globally the three species strongly overlap. Although species often co-occurred in terms of presence/absence, their biomass density differed at local scale, suggesting potential interspecific avoidance or different sensitivity to local environmental characteristics. Persistent favourable areas were finally detected, but their environmental characteristics remain to be determined.
PY 2014
PD NOV
SO Plos One
SN 1932-6203
PU Public Library Science
VL 9
IS 11
UT 000344402600030
BP 1
EP 12
DI 10.1371/journal.pone.0111211
ID 33739
ER

EF