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
Küçük Resim Yok
Tarih
2003
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Scientific Technical Research Council Turkey
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
This study investigates the relationship between total length (TL) and fork length (FL), girth (G), height (H) and width (W) of red mullet (Mullus barbatus) (n = 953) and annular sea bream (Diplodus annularis) (n = 944) collected during trawl selectivity trials carried out in Izmir Bay between July 1996 and February 1997. The FL, G, H and W of red mullet were 89, 53, 20 and 11% of the TL, respectively. For annular sea bream these values were 91, 80, 34 and 11 %, respectively. The ratios for average body thickness (W/H) were 0.573 for red mullet and 0.319 for annular sea bream. The hanging ratios (E-RM and E-AS8) of codends designed to ease the escape of juveniles of these species were 0.497 for red mullet and 0.304 for annular sea bream.
Açıklama
Anahtar Kelimeler
body shape, mesh hanging ratio (E), red mullet (Mullus barbatus), annular sea bream (Diplodus annularis)
Kaynak
Turkish Journal of Veterinary & Animal Sciences
WoS Q Değeri
Q4
Scopus Q Değeri
Q3
Cilt
27
Sayı
5
