FN Archimer Export Format
PT J
TI Simulation-based study of the combined effect on cod-end size selection of turning meshes by 90 degrees and reducing the number of meshes in the circumference for round fish
BT 
AF HERRMANN, Bent
   PRIOUR, Daniel
   KRAG, Ludvig A.
AS 1:1;2:2;3:1;
FF 1:;2:PDG-DOP-DCB-STH-LTH;3:;
C1 Danish Inst Fisheries Res, DIFRES, North Sea Ctr, DK-9850 Hirtshals, Denmark.
   IFREMER, French Inst Res & Explorat Sea, F-29280 Plouzane, France.
C2 DIFRES, DENMARK
   IFREMER, FRANCE
SI BREST
SE PDG-DOP-DCB-STH-LTH
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 1.196
TC 36
UR https://archimer.ifremer.fr/doc/2007/publication-2588.pdf
LA English
DT Article
DE ;FEMNET;PRESEMO;T90;Cod end selectivity
AB FEMNET, a numerical tool based on the finite element method, was used to estimate the shapes of four different designs of trawl cod-ends during fishing operations. Compared to a traditional diamond-mesh cod-end the design differences were the following: (i) the netting orientation was turned by 90 degrees (T90), (ii) the number of meshes in the circumference was reduced by 50% or (i) and (ii) were combined. The cod-end shape estimates were then entered into the simulation tool PRESEMO, to estimate their influence on the selectivity processes in the cod-end. This enabled us to predict how these design alterations - alone or combined - may act on the selectivity of each cod-end under identical fishing conditions. For instance, we predict that for a I 10 mm diamond-mesh cod-end the 50% retention length (1-50) is increased by nearly 12 cm by both turning the mesh orientation and reducing the number of meshes in the circumference. Of this combined effect we predict that 24% of it is caused by only turning the mesh orientation whereas 71 % of the effect stems from only reducing the number of meshes in circumference. The remaining 5% is due to the interaction between the two factors. (c) 2006 Elsevier B.V. All rights reserved.
PY 2007
PD APR
SO Fisheries Research
SN 0165-7836
PU Elsevier
VL 84
IS 2
UT 000245597600010
BP 222
EP 232
DI 10.1016/j.fishres.2006.10.020
ID 2588
ER

EF