FN Archimer Export Format
PT J
TI Spatio-Temporal Patterns of Key Exploited Marine Species in the Northwestern Mediterranean Sea
BT 
AF MORFIN, Marie
   FROMENTIN, Jean-Marc
   JADAUD, Angelique
   BEZ, Nicolas
AS 1:1;2:1;3:1;4:2;
FF 1:PDG-RBE-HM-RHSETE;2:PDG-RBE-HM-RHSETE;3:PDG-RBE-HM-RHSETE;4:;
C1 IFREMER, UMR EME 212, Sete, France.
   IRD, UMR EME 212, Sete, France.
C2 IFREMER, FRANCE
   IRD, FRANCE
SI SETE
SE PDG-RBE-HM-RHSETE
   IRD
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-france
   copubli-p187
IF 3.73
TC 31
TU IFREMER
   IRD
   UNIVERSITE MONTPELLIER
UR https://archimer.ifremer.fr/doc/00087/19860/17507.pdf
LA English
DT Article
CR MEDITS 2004
   MEDITS 2005
   MEDITS 2006
   MEDITS 2007
   MEDITS 2008
   MEDITS 2009
   MEDITS 2010
   MEDITS 2011
   MEDITS-FR2000
   MEDITS-FR2001
   MEDITS-FR2002
   MEDITS-FR2003
   MEDITS-FR98
   MEDITS-FR99
BO L'Europe
AB This study analyzes the temporal variability/stability of the spatial distributions of key exploited species in the Gulf of Lions (Northwestern Mediterranean Sea). To do so, we analyzed data from the MEDITS bottom-trawl scientific surveys from 1994 to 2010 at 66 fixed stations and selected 12 key exploited species. We proposed a geostatistical approach to handle zero-inflated and non-stationary distributions and to test for the temporal stability of the spatial structures. Empirical Orthogonal Functions and other descriptors were then applied to investigate the temporal persistence and the characteristics of the spatial patterns. The spatial structure of the distribution (i.e. the pattern of spatial autocorrelation) of the 12 key species studied remained highly stable over the time period sampled. The spatial distributions of all species obtained through kriging also appeared to be stable over time, while each species displayed a specific spatial distribution. Furthermore, adults were generally more densely concentrated than juveniles and occupied areas included in the distribution of juveniles. Despite the strong persistence of spatial distributions, we also observed that the area occupied by each species was correlated to its abundance: the more abundant the species, the larger the occupation area. Such a result tends to support MacCall's basin theory, according to which density-dependence responses would drive the expansion of those 12 key species in the Gulf of Lions. Further analyses showed that these species never saturated their habitats, suggesting that they are below their carrying capacity; an assumption in agreement with the overexploitation of several of these species. Finally, the stability of their spatial distributions over time and their potential ability to diffuse outside their main habitats give support to Marine Protected Areas as a potential pertinent management tool.
PY 2012
PD MAY
SO Plos One
SN 1932-6203
PU Public Library Science
VL 7
IS 5
UT 000305338900056
DI 10.1371/journal.pone.0037907
ID 19860
ER

EF