Multifilament gillnet and trammel net selectivity for the silver crucian Carp (Carassius gibelio Bloch, 1782) in eğirdir Lake, Isparta, Turkey

CİLBİZ M., Hanol Z., Cilbiz N., Çinar Ş., Savaşer S.

Turkish Journal of Fisheries and Aquatic Sciences, cilt.14, sa.4, ss.905-913, 2014 (SCI-Expanded, Scopus, TRDizin) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 14 Sayı: 4
  • Basım Tarihi: 2014
  • Doi Numarası: 10.4194/1303-2712-v14_4_09
  • Dergi Adı: Turkish Journal of Fisheries and Aquatic Sciences
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, TR DİZİN (ULAKBİM)
  • Sayfa Sayıları: ss.905-913
  • Anahtar Kelimeler: Carassius gibelio, Gillnet, SELECT method, Selectivity, Trammel net
  • Isparta Uygulamalı Bilimler Üniversitesi Adresli: Evet

Özet

The aim of this study was determine the selectivity of gillnet and trammel net with different mesh sizes for C. gibelio in EğirdirLake. Gillnets with mesh sizes of 32, 40, 50, 60, 70, 80 and 90 mm; and trammel nets with of 100, 110, 120, 130 and 140 mm were tested for catching of C. gibelio. Fieldwork was carried out in two different station of EğirdirLake, in a monthly period from December 2009 to April 2010 and with a total of 10 catching trials. The SELECT method was used to determine the selectivity parameters. In the experiments, 592 C. gibelio species the length ranges between 7.3-34.8 cm were caught. According to the Bi-modal model which gave the lowest deviation for multifilament gillnets, the optimum lengths were determined as 8.74, 10.92, 13.65, 16.38, 19.11, 21.84 and 24.57 cm for 32, 40, 50, 60, 70, 80 and 90 mm mesh sizes respectively. According to the Normal scale model which gave the lowest deviation for trammel nets, optimum lengths were determined as 27.20, 29.92, 32.64, 35.36 and 38.08 cm for 100, 110, 120, 130 and 140 mm mesh sizes in trammel net respectively.