Method and Technical Characteristics of Traditional River Longline from Lower Sakarya River Fishery, Turkey
Künye
Reis İ, Cerim H. 2020. Method and Technical Characteristics of Traditional River Longline from Lower Sakarya River Fishery, Turkey. LimnoFish. 6(2): 164-168. doi: 10.17216/LimnoFish.635248Özet
In this study, a traditional longline set used in the lower Sakarya River was investigated. Technical characteristics and usage of the longline set were determined. Approximately 25-30% of the fishermen in the lower Sakarya River use this method. Fishermen use the longline set with 30-40 baited hooks by positioning them between the two banks of the river (30-60 m). Fishermen target relatively big individuals, especially, Silurus glanis. However, Esox lucius and some Cyprinidae species are also caught. The average daily catch is between 5- 10 kg and captured S. glanis individuals are between 1-20 kg. To ensure sustainability, catch per unit efforts of this traditional method, and spawning stock biomass should be monitored. Bu çalışmada, Aşağı Sakarya Nehri’nde kullanılan geleneksel bir paraketa takımı incelenmiştir. Paraketa takımının teknik özellikleri ve kullanım şekli belirlenmiştir. Aşağı Sakarya Nehri’nde yaklaşık balıkçıların %25-30’u bu yöntemi kullanmaktadır. Balıkçılar 30-40 adet yemlenmiş kancaya sahip paraketa takımını, nehrin iki kıyısı arasına (30-60 m) konumlandırarak kullanmaktadırlar. Balıkçılar özellikle Silurus glanis olmak üzere nispeten büyük balıkları hedeflemektedirler. Ancak Esox lucius ve bazı Cyprinidae türleri de yakalanmaktadır. Günlük ortalama toplam av 5-10 kg ve yakalanan S. glanis bireylerinin ağırlıkları 1- 20 kg arasındadır. Sürdürülebilirliğin sağlanması için bu geleneksel yöntemin birim çabaya düşen av miktarı ve üreyen biyokütlenin izlenmesi gerekmektedir.
Kaynak
Journal of Limnology and Freshwater Fisheries ResearchCilt
6Sayı
2Bağlantı
http://www.limnofish.org/tr/pub/issue/56443/635248https://hdl.handle.net/20.500.12809/9084
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