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Investigation of the Selectivity of Trammel Nets Used in Red Mullet (Mullus barbatus) Fishery in the Eastern Black Sea, Turkey

Yıl 2012, Cilt: 12 Sayı: 4, - , 01.08.2012

Öz

In the present study, the selectivity properties of trammel nets used in red mullet fishery by local fishermen were investigated. Trammel nets with five different mesh sizes (16, 17, 18, 20 and 22 mm bar length) in the inner panels and 100 mm mesh size in outer panel were used for fishing trial in the eastern Black Sea coast of Turkey between June 2010 and June 2011. Selectivity parameters for the target species Mullus barbatus, as well as Scorpaena porcus and Solea solea were estimated. Five different selectivity models (normal scale, normal location, gamma, log-normal and bi-modal) in the SELECT method were fitted to data sets. The bi-modal model gave the best fit for three species studied as it had the lowest deviance value. The optimum lengths for red mullet for the Bi-Modal model corresponding to 16, 17, 18, 20 and 22 mm mesh sizes were found as 15.49, 16.46, 17.42, 19.36 and 21.30 cm, respectively. The minimum mesh size of the trammel nets especially used in red mullet fishery must be 18 mm in order to protect fish stocks and to secure a profitable fisheries and optimum catch efficiency for the future.

Investigation of the Selectivity of Trammel Nets Used in Red Mullet (Mullus barbatus) Fishery in the Eastern Black Sea, Turkey

Yıl 2012, Cilt: 12 Sayı: 4, - , 01.08.2012

Öz

In the present study, the selectivity properties of trammel nets used in red mullet fishery by local fishermen were investigated. Trammel nets with five different mesh sizes (16, 17, 18, 20 and 22 mm bar length) in the inner panels and 100 mm mesh size in outer panel were used for fishing trial in the eastern Black Sea coast of Turkey between June 2010 and June 2011. Selectivity parameters for the target species Mullus barbatus, as well as Scorpaena porcus and Solea solea were estimated. Five different selectivity models (normal scale, normal location, gamma, log-normal and bi-modal) in the SELECT method were fitted to data sets. The bi-modal model gave the best fit for three species studied as it had the lowest deviance value. The optimum lengths for red mullet for the Bi-Modal model corresponding to 16, 17, 18, 20 and 22 mm mesh sizes were found as 15.49, 16.46, 17.42, 19.36 and 21.30 cm, respectively. The minimum mesh size of the trammel nets especially used in red mullet fishery must be 18 mm in order to protect fish stocks and to secure a profitable fisheries and optimum catch efficiency for the future.

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Ayrıntılar

Birincil Dil Türkçe
Bölüm Makaleler
Yazarlar

Ferhat Kalaycı Bu kişi benim

Tuncay Yeşilçiçek Bu kişi benim

Yayımlanma Tarihi 1 Ağustos 2012
Yayımlandığı Sayı Yıl 2012 Cilt: 12 Sayı: 4

Kaynak Göster

APA Kalaycı, F., & Yeşilçiçek, T. (2012). Investigation of the Selectivity of Trammel Nets Used in Red Mullet (Mullus barbatus) Fishery in the Eastern Black Sea, Turkey. Turkish Journal of Fisheries and Aquatic Sciences, 12(4).
AMA Kalaycı F, Yeşilçiçek T. Investigation of the Selectivity of Trammel Nets Used in Red Mullet (Mullus barbatus) Fishery in the Eastern Black Sea, Turkey. Turkish Journal of Fisheries and Aquatic Sciences. Ağustos 2012;12(4).
Chicago Kalaycı, Ferhat, ve Tuncay Yeşilçiçek. “Investigation of the Selectivity of Trammel Nets Used in Red Mullet (Mullus Barbatus) Fishery in the Eastern Black Sea, Turkey”. Turkish Journal of Fisheries and Aquatic Sciences 12, sy. 4 (Ağustos 2012).
EndNote Kalaycı F, Yeşilçiçek T (01 Ağustos 2012) Investigation of the Selectivity of Trammel Nets Used in Red Mullet (Mullus barbatus) Fishery in the Eastern Black Sea, Turkey. Turkish Journal of Fisheries and Aquatic Sciences 12 4
IEEE F. Kalaycı ve T. Yeşilçiçek, “Investigation of the Selectivity of Trammel Nets Used in Red Mullet (Mullus barbatus) Fishery in the Eastern Black Sea, Turkey”, Turkish Journal of Fisheries and Aquatic Sciences, c. 12, sy. 4, 2012.
ISNAD Kalaycı, Ferhat - Yeşilçiçek, Tuncay. “Investigation of the Selectivity of Trammel Nets Used in Red Mullet (Mullus Barbatus) Fishery in the Eastern Black Sea, Turkey”. Turkish Journal of Fisheries and Aquatic Sciences 12/4 (Ağustos 2012).
JAMA Kalaycı F, Yeşilçiçek T. Investigation of the Selectivity of Trammel Nets Used in Red Mullet (Mullus barbatus) Fishery in the Eastern Black Sea, Turkey. Turkish Journal of Fisheries and Aquatic Sciences. 2012;12.
MLA Kalaycı, Ferhat ve Tuncay Yeşilçiçek. “Investigation of the Selectivity of Trammel Nets Used in Red Mullet (Mullus Barbatus) Fishery in the Eastern Black Sea, Turkey”. Turkish Journal of Fisheries and Aquatic Sciences, c. 12, sy. 4, 2012.
Vancouver Kalaycı F, Yeşilçiçek T. Investigation of the Selectivity of Trammel Nets Used in Red Mullet (Mullus barbatus) Fishery in the Eastern Black Sea, Turkey. Turkish Journal of Fisheries and Aquatic Sciences. 2012;12(4).