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The effects of trawl codend mesh size selectivity on the length composition of catches of pandora, Pagellus erythrinus L. 1758 in the shelf area of the Montenegrin coast (South Adriatic)

Aleksandar JOKSIMOVIĆ orcid id orcid.org/0000-0002-0796-4641 ; Institut za biologiju mora, Dobrota bb, P.P. 69, 85 330 Kotor, Crna Gora
Slobodan REGNER ; Institut za multidisciplinarna istraživanja, Bulevar Despota Stefana 142, 11 000 Beograd, Srbija
Jacques SACCHI ; Francuski Institut za istraživanje mora,


Puni tekst: engleski pdf 496 Kb

str. 151-157

preuzimanja: 640

citiraj


Sažetak

Selectivity curves of pandora (Pagellus erythrinus, L. 1758) have been estimated in the areaof the Montenegrin shelf (South Adriatic), for trawls with bar mesh sizes of 13.5, 16.1, 17.5, 22and 35 mm (according to national legislation in Montenegro bar mesh size is measured from knotto knot which is, according to Commission Regulation (EC) No. 129/2003, stretched mesh sizedivided by 2). Although the existing national legislation prescribes that the minimum mesh size ofthe trawl be not smaller than 20 mm, trawls with forbidden mesh sizes are often used in this area.Results obtained showed that meshes smaller than 20 mm (13.5 mm, 16.1 mm, 17.5 mm) catch largenumbers of immature individuals, since the length of 50% retention (L50%) for all these meshes issmaller than the length of fish at first spawning and which is, for Pagellus erythrinus in Montenegrinwaters, ≈ 12 cm. L50% is longer than the average length of the first spawning only for nets withopenings of 22 mm and 35 mm bar mesh size.

Ključne riječi

Pagellus erythrinus, trawl mesh size, selectivity, Montenegrin shelf (South Adriatic)

Hrčak ID:

45925

URI

https://hrcak.srce.hr/45925

Podaci na drugim jezicima: hrvatski

Posjeta: 1.235 *