Lok, ATokac, ATosunoglu, ZMetin, CFerro, RST2019-10-272019-10-2719970165-78360165-7836https://doi.org/10.1016/S0165-7836(97)00048-9https://hdl.handle.net/11454/34845The effect of different cod-end designs on bottom trawl selectivity was studied using the hooped cod-end cover method. The selectivities of three different cod-ends: standard, 15% shortened lastridge rope and narrowed circumference (to 120 mesh from 150 mesh), were measured for red mullet (Mullus barbatus L., 1758) and annular sea bream (Diplodus annularis L., 1758) in Turkish territorial waters of the Aegean Sea in June and September 1994. Selection curves and selection parameters were calculated using a logistic model. 50% retention lengths and selection factors for red mullet were higher for the shortened lastridge rope case and narrow cod-end than the standard cod-end. There was no significant difference for annular sea bream. This can be explained by the body shape differences of the two species. The effects of different cod-end designs on the selectivity are discussed. (C) 1997 Elsevier Science B.V.en10.1016/S0165-7836(97)00048-9info:eu-repo/semantics/closedAccessAegean Seatrawl selectivitycod-end designshortened lastridge ropenarrowed cod-endArticle322149156WOS:000071092800005Q1Q3