FN Archimer Export Format
PT J
TI Spatio-Temporal Dynamics of Exploited Groundfish Species Assemblages Faced to Environmental and Fishing Forcings: Insights from the Mauritanian Exclusive Economic Zone
BT 
AF KIDE, Saikou Oumar
   MANTE, Claude
   DUBROCA, Laurent
   DEMARCQ, Herve
   MERIGOT, Bastien
AS 1:1,2;2:2;3:3;4:4;5:5;
FF 1:;2:;3:PDG-RBE-HMMN-RHPEB;4:;5:;
C1 Inst Mauritanien Rech Oceanog & Peches, Lab Biol & Ecol Organismes Aquat, Nouadhibou, Mauritania.
   Aix Marseille Univ, Mediterranean Inst Oceanog, Marseille, France.
   IFREMER, F-14520 Port En Bessin Huppain, France.
   IRD, UMR MARBEC 9190, Ctr Rech Halieut Mediterraneenne, Sete, France.
   Univ Montpellier, UMR MARBEC 9190, Ctr Rech Halieut Mediterraneenne, Sete, France.
C2 IMROP, MAURITANIA
   UNIV AIX MARSEILLE, FRANCE
   IFREMER, FRANCE
   IRD, FRANCE
   UNIV MONTPELLIER, FRANCE
SI PORT-EN-BESSIN
SE PDG-RBE-HMMN-RHPEB
UM MARBEC
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-p187
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 3.057
TC 12
UR https://archimer.ifremer.fr/doc/00288/39945/38493.pdf
   https://archimer.ifremer.fr/doc/00288/39945/38494.zip
   https://archimer.ifremer.fr/doc/00288/39945/38495.docx
   https://archimer.ifremer.fr/doc/00288/39945/38496.docx
LA English
DT Article
AB Environmental changes and human activities can have strong impacts on biodiversity and ecosystem functioning. This study investigates how, from a quantitative point of view, simultaneously both environmental and anthropogenic factors affect species composition and abundance of exploited groundfish assemblages (i.e. target and non-target species) at large spatio-temporal scales. We aim to investigate (1) the spatial and annual stability of groundfish assemblages, (2) relationships between these assemblages and structuring factors in order to better explain the dynamic of the assemblages’ structure. The Mauritanian Exclusive Economic Zone (MEEZ) is of particular interest as it embeds a productive ecosystem due to upwelling, producing abundant and diverse resources which constitute an attractive socio-economic development. We applied the multi-variate and multi-table STATICO method on a data set consisting of 854 hauls collected during 14-years (1997–2010) from scientific trawl surveys (species abundance), logbooks of industrial fishery (fishing effort), sea surface temperature and chlorophyll a concentration as environmental variables. Our results showed that abiotic factors drove four main persistent fish assemblages. Overall, chlorophyll a concentration and sea surface temperature mainly influenced the structure of assemblages of coastal soft bottoms and those of the offshore near rocky bottoms where upwellings held. While highest levels of fishing effort were located in the northern permanent upwelling zone, effects of this variable on species composition and abundances of assemblages were relatively low, even if not negligible in some years and areas. The temporal trajectories between environmental and fishing conditions and assemblages did not match for all the entire time series analyzed in the MEEZ, but interestingly for some specific years and areas. The quantitative approach used in this work may provide to stakeholders, scientists and fishers a useful assessment for the spatio-temporal dynamics of exploited assemblages under stable or changing conditions in fishing and environment.
PY 2015
PD OCT
SO Plos One
SN 1932-6203
PU Public Library Science
VL 10
IS 10
UT 000363804200085
DI 10.1371/journal.pone.0141566
ID 39945
ER

EF