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Iranian Journal of Fisheries Sciences، جلد ۱۹، شماره ۵، صفحات ۲۶۰۸-۲۶۱۷
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عنوان انگلیسی Determining the hook selectivity of bottom longline used for European hake (Merluccius merluccius, L. 1758) in Saros Bay (northern Aegean Sea, Turkey)
چکیده انگلیسی مقاله This study was carried out at Saros Bay, between June 2011 and July 2013 to determine hook selectivity of bottom longlines used in European hake (Merluccius merluccius, L. 1758) fishing. Throughout the study; thick type, 6, 7, 8 and 9 sized flat hooks were used between 150 and 400 m depth. 36 fishing operations were carried out and 222 fish were caught using 7200 hooks in total. Depending on the size of hooks; number 8 was the most efficient hook that has caught 114 fish and number 6 was the least efficient one that has caught only 14 fish. The SELECT method is used in the determination of the selectivity parameters. Bi model has given the best fit according to selectivity analysis of five different models. Optimum catching lengths found were 60.09 cm for 6 number hook; 51.45 cm for 7 number hook; 46.43 cm for 8 number hook; 40.11 cm for 9 number hook, in Bi Model model. Minimum size limit for European hake is 25 cm in Turkey. Considering the minimum size limit, use of hooks with gapes larger than number 9 hook (11.75 mm) used in this study is suggested.
کلیدواژه‌های انگلیسی مقاله European Hake, Merluccius merluccius, Saros Bay, Hook Selectivity, Bottom Longline.
نویسندگان مقاله | A. Öztekin
Çanakkale Onsekiz Mart University, Faculty of Marine Sciences and Technology, 17100, Çanakkale, TURKEY.


| U. Özekinci
Çanakkale Onsekiz Mart University, Faculty of Marine Sciences and Technology, 17100, Çanakkale, TURKEY.


| A. Ayaz
Çanakkale Onsekiz Mart University, Faculty of Marine Sciences and Technology, 17100, Çanakkale, TURKEY.
نشانی اینترنتی http://jifro.ir/browse.php?a_code=A-10-1696-1&slc_lang=en&sid=1
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده Economy in fishery
نوع مقاله منتشر شده پژوهشی
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