Acta Adriatica, Vol. 50 No. 2, 2009.
Original scientific paper
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.org/0000-0002-0796-4641
; Institute of Marine Biology, Dobrota bb, P. Box 69, 85 330 Kotor, Montenegro
Slobodan REGNER
; Institute for multidisciplinary research, Bulevar Despota Stefana 142, Belgrade, Serbia
Jacques SACCHI
; French Research Institute for Exploitation of the Sea,
Abstract
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.
Keywords
Pagellus erythrinus; trawl mesh size; selectivity; Montenegrin shelf (South Adriatic)
Hrčak ID:
45925
URI
Publication date:
1.12.2009.
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