FN Archimer Export Format
PT J
TI A two-stage biomass model to assess the English Channel cuttlefish (Sepia officinalis L.) stock
BT 
AF GRAS, Michael
   ROEL, Beatriz A.
   COPPIN, Franck
   FOUCHER, Eric
   ROBIN, Jean-Paul
AS 1:1,2;2:3;3:4;4:5;5:1,2;
FF 1:;2:;3:PDG-RBE-HMMN-RHBL;4:PDG-RBE-HMMN-RHPEB;5:;
C1 UMR BOREA: Biologie des ORganismes et des Ecosystèmes Aquatiques, Université de Caen Basse-Normandie, Esplanade de la paix, CS 14032, 14032 Caen, France
   BOREA, UMR CNRS7208, IRD207, UPMC, MNHN, UCBN, 14032 Caen, France
   Cefas, Lowestoft Laboratory, Pakefield Road, Lowestoft, Suffolk NR33 0HT, UK
   Laboratoire Ressources Halieutiques, Ifremer, 150 Quai Gambetta, 62200 Boulogne-sur-Mer, France
   Laboratoire Ressources Halieutiques, Ifremer, Avenue du Général de Gaulle, BP 32, 14520 Port-en-Bessin, France
C2 UNIV CAEN, FRANCE
   CNRS, FRANCE
   CEFAS, UK
   IFREMER, FRANCE
   IFREMER, FRANCE
SI BOULOGNE
   PORT-EN-BESSIN
SE PDG-RBE-HMMN-RHBL
   PDG-RBE-HMMN-RHPEB
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
   copubli-univ-france
IF 2.377
TC 11
TU CNRS
   IFREMER
   IRD
   MNHN
   UNIVERSITE ANTILLES
   UNIVERSITE CAEN
   UNIVERSITE PARIS 6
UR https://archimer.ifremer.fr/doc/00248/35923/34448.pdf
LA English
DT Article
CR CGFS 92
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BO Gwen Drez
DE ;abundance indices;English Channel;exploitation rate;Sepia officinalis;SST;stock–recruitment relationship;trawl survey;two-stage biomass model
AB The English Channel cuttlefish (Sepia officinalis) is the most abundant cephalopod resource in the Northeast Atlantic and one of the three most valuable resources for English Channel fishers. Depletion methods and age-structured models have been used to assess the stock, though they have shown limitations related to the model assumptions and data demand. A two-stage biomass model is, therefore, proposed here using, as input data, four abundance indices derived from survey and commercial trawl data collected by Ifremer and Cefas. The model suggests great interannual variability in abundance during the 17 years of the period considered and a decreasing trend in recent years. Model results suggest that recruitment strength is independent of spawning-stock biomass, but appears to be influenced by environmental conditions such as sea surface temperature at the start of the life cycle. Trends in exploitation rate do not reveal evidence of overexploitation. Reference points are proposed and suggestions for management of the sustainable utilization of cuttlefish in the English Channel are advanced.
PY 2014
PD NOV
SO ICES Journal of Marine Science
SN 1054-3139
PU Oxford university press
VL 71
IS 9
UT 000346191300010
BP 2457
EP 2468
DI 10.1093/icesjms/fsu081
ID 35923
ER

EF