Öztekin, Alkan Çanakkale Onsekiz Mart Üniversitesi - Deniz Bilimleri ve Teknolojisi Fakültesi, Turkey , Özekinci, Uğur Çanakkale Onsekiz Mart Üniversitesi - Deniz Bilimleri ve Teknolojisi Fakültesi, Turkey , Ayaz, Adnan Çanakkale Onsekiz Mart Üniversitesi - Deniz Bilimleri ve Teknolojisi Fakültesi, Turkey , Cengiz, Özgür Çanakkale Onsekiz Mart Üniversitesi - Deniz Bilimleri ve Teknolojisi Fakültesi, Turkey , Altınağaç, Uğur Çanakkale Onsekiz Mart Üniversitesi - Deniz Bilimleri ve Teknolojisi Fakültesi, Turkey , Aslan, Alparslan Çanakkale Onsekiz Mart Üniversitesi - Deniz Bilimleri ve Teknolojisi Fakültesi, Turkey

The mouth opening - length relationship and the selectivity of bottom longline used for greater Forkbeard (Phycis blennoides B. 1768) fishing in Saros Bay (Northern Aegean Sea)

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In this study, the selectivity of bottom longline used for Greater forkbeard (Phycis blennoides Brünnich, 1768) fishing in Saros Bay and the relationship between lengths of caught fish and mouth opening (horizontal mouth opening YAÇ , vertical mouth opening DAÇ ) was investigated. The SELECT method was used in the determination of the selectivity parameters. Throughout the study, in total 20 fishing operations were carried out and 99 sample were caught by using 4000 hooks. Depending on the size of hooks, 37 fish were caught by number 7 hook. The relationship of length-DAÇ (R^2 = 0,711) and the relationship of length-YAÇ (R^2 = 0,808) for Greater forkbeard (Phycis blennoides Brünnich, 1768) were determined. Selectivityparametersforoptimumcatchinglengths (OYB) werefound 48,45 cm for 6 numberhook; 41,49 cm fornumber7 hook; 37,44 cm fornumber 8 hook; 32,35 cm fornumber9 hook, respectively.

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Greater forkbeard , Phycisblennoides , Saros Bay , Bottom longline , Fish mouth , Hook selectivity.

Ege Journal Of Fisheries an‎d Aquatic Sciences

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