FN Archimer Export Format
PT J
TI Evidence of a variable "unsampled" pelagic fish biomass in shallow water (< 20 m): the case of the Gulf of Lion
BT 
AF BREHMER, P
   GUILLARD, J
   GUENNEGAN, Yvon
   BIGOT, Jean-Louis
   LIORZOU, Bernard
AS 1:1;2:2;3:3;4:3;5:3;
FF 1:;2:;3:PDG-DOP-DCM-HMT-RHSETE;4:PDG-DOP-DCM-HMT-RHSETE;5:PDG-DOP-DCM-HMT-RHSETE;
C1 Ctr Rech Halieut Mediterraneenne & Trop, UR 109 & US 004, F-34203 Sete, France.
   INRA, Stn Hydrobiol Lacustre, UMR CARRTEL, F-74203 Thonon Les Bains, France.
   IFREMER, Ctr Rech Halieut Mediterraneenne & Trop, RH, F-34203 Sete, France.
C2 IRD, FRANCE
   INRA, FRANCE
   IFREMER, FRANCE
SI SETE
SE PDG-DOP-DCM-HMT-RHSETE
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-p187
IF 1.469
TC 12
TU Institut national de la recherche agronomique
   Université de Savoie
UR https://archimer.ifremer.fr/doc/2006/publication-1674.pdf
LA English
DT Article
CR PELMED 2001
   PELMED 2002
   PELMED 2003
   PELMED 2005
   PELMED 93
   PELMED 94
   PELMED 95
   PELMED 96
   PELMED 97
   PELMED 98
   PELMED 99
   PELMED2M
BO L'Europe
   Thalassa
DE ;Spatial distribution;Small pelagic fish;Shallow water;Hydroacoustic methods;Assessment
AB Studies of small pelagic fish biomass are limited by the fact that research vessels and fishing boats are usually restricted to working areas with a bottom depth > 20 m. Consequently, "unsampled" areas can represent a large proportion of the continental shelf, and the biomass in those areas can be important and must be taken into account in assessment methods in order to avoid misleading interpretations in population dynamics. A time-series tell years long has been compiled from acoustic-assessment surveys of small pelagic fish stocks, and the results show an overall increase in the acoustic fish density towards the coast, where values were the highest. Additional experiments on transects covering shallow-water areas (5-20 m) were conducted from 2001 to 2003 with small boats and a research vessel to evaluate the acoustic fish density in those areas. The results confirmed that the fish biomass in shallow water is significant, sometimes very large, and should be evaluated to avoid underestimation. Therefore, surveys should be conducted in shallow water, if at all possible, as well as at greater depths when carrying out surveys destined to support assessment exercises. (c) 2005 International Council for the Exploration of the Sea. 
PY 2006
PD APR
SO ICES Journal of Marine Science
SN 1054-3139
PU Elsevier
VL 63
IS 3
UT 000236272000004
BP 444
EP 451
DI 10.1016/j.icesjms.2005.10.016
ID 1674
ER

EF