Determination of the appropriate hanging ratios to ease the escape of juvenile red mullet (Mullus barbatus L.1758) and annular sea bream (Diplodus annularis L.,1758) from a trawl codend

Determination of the appropriate hanging ratios to ease the escape of juvenile red mullet (Mullus barbatus L.1758) and annular sea bream (Diplodus annularis L.,1758) from a trawl codend

Bu çalışmada Temmuz 1996 ve Şubat 1997 arasında izmir Körfezinde yürütülen trol seçiciliği çalışmaları sırasında toplanan barbunya (Mullus barbatus) (n = 953) ve ısparozlarm (Diplodus annularis) (n = 944) total boyları (TL) ile çatal boy (FL), çevre (G), sırt yüksekliği (H) ve genişlikleri (W) arasındaki ilişki araştırılmıştır. Barbunyaya ait FL, G, H ve W değerlerinin sırasıyla TL'nin yüzde 89, 53, 20, ve 11 'ine eşit olduğu bulunmuştur. Bu değerler ısparoz için sırasıyla 91, 80, 34 ve 11 'dir. Ortalama vücut kalınlığı oranı (W/H) barbunyada 0,573, ısparozda 0,319 olarak bulunmuştur. Bu türlerin küçük bireylerinin kaçışını kolaylaştırmak için tasarlanılan torbaların donam faktörleri barbunya için (ERM) 0,497, ısparoz için (EASB) 0,304 olarak hesaplanmıştır.

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Turkish Journal of Veterinary and Animal Sciences-Cover
  • ISSN: 1300-0128
  • Yayın Aralığı: Yılda 6 Sayı
  • Yayıncı: TÜBİTAK
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