Theoretical study of the effect of round straps on the selectivity in a diamond mesh cod-end

Research output: Contribution to journalJournal articleResearchpeer-review


FEMNET, a numerical tool based on the finite element method, was applied to estimate the shapes of various diamond-mesh cod-end designs during fishing. The only design differences rest in the use of round straps of different lengths, positions and numbers. The cod-end shape estimates were then entered in the selectivity simulation tool PRESEMO to simulate the selectivity processes of the various cod-end designs under the same varying fishing conditions. This enabled us to demonstrate how one or two round straps along the cod-end axis may change the selectivity of the cod-end compared with a reference cod-end, without round straps. We predict that in cod-end designs, which comply with the EU legislation, the 50% retention length (L50) may be reduced by up to 1.5 cm (5%) for haddock.
Original languageEnglish
JournalFisheries Research
Issue number2-3
Pages (from-to)148-157
Publication statusPublished - 2006

Cite this