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Selectivity of diamond, square and hexagonal mesh codends for Atlantic horse mackerel Trachurus trachurus , European hake Merluccius merluccius , and greater forkbeard Phycis blennoides in the eastern Mediterranean

2009; Wiley; Volume: 26; Issue: 1 Linguagem: Inglês

10.1111/j.1439-0426.2009.01376.x

1439-0426

Celalettin Aydın, Zafer Tosunoğlu,

Fish Biology and Ecology Studies

Journal of Applied IchthyologyVolume 26, Issue 1 p. 71-77 Selectivity of diamond, square and hexagonal mesh codends for Atlantic horse mackerel Trachurus trachurus, European hake Merluccius merluccius, and greater forkbeard Phycis blennoides in the eastern Mediterranean C. Aydın, C. Aydın Ege University, Faculty of Fisheries, Bornova, Izmir, TurkeySearch for more papers by this authorZ. Tosunoğlu, Z. Tosunoğlu Ege University, Faculty of Fisheries, Bornova, Izmir, TurkeySearch for more papers by this author C. Aydın, C. Aydın Ege University, Faculty of Fisheries, Bornova, Izmir, TurkeySearch for more papers by this authorZ. Tosunoğlu, Z. Tosunoğlu Ege University, Faculty of Fisheries, Bornova, Izmir, TurkeySearch for more papers by this author First published: 20 January 2010 https://doi.org/10.1111/j.1439-0426.2009.01376.xCitations: 19 Author's address: Celalettin Aydın, Ege University, Faculty of Fisheries, TR-35100, Bornova, Izmir, Turkey.E-mail: [email protected] Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Summary Knowledge on selectivity is considered essential for an adequate management of the trawl fishery. This paper compares the selectivity of conventionally used codends of 44 mm diamond mesh, 40 mm square, and hexagonal mesh for Atlantic horse mackerel, European hake and greater forkbeard in the eastern Mediterranean. Data were collected using the covered codend method and analyzed using the logistic equation with the maximum likelihood method. Mean selection curves were analyzed and compared using the between-haul variations model. The mean L50values of diamond, square and hexagonal mesh codends are 14.7, 15.9 and 17.1 cm total length (TL) for horse mackerel, 10.4, 14.4 and 11.0 cm TL for hake and 12.2, 15.8 and 12.7 cm TL for greater forkbeard, respectively. For horse mackerel, the differences among the codends are statistically significant (P < 0.05); however, the L50 values for all three meshes are higher than the minimum landing size (13 cm TL). 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