Age, growth and reproduction of tub gurnard Chelidonichthys lucernus Linnaeus, 1758 (Osteichthtyes : Triglidae) from Izmir Bay, Aegean Sea, Eastern Mediterranean
Küçük Resim Yok
Tarih
2007
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Inst Oceanografiju I Ribarstvo
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A total of 546 tub gurnard (Chelidonichthys lucernus L., 1758) were caught monthly by trawl surveys carried out between September 1999 and August 2000 in Izmir Bay (Aegean Sea). Fork lengths of females ranged from 12.7 to 34.4 cm, and (of males from 14.1 to 29.9 cm. The female: male ratio was 1:0.52. The maximum age observed was 5 for females and 3 for males and the length-weight relationships were estimated as W=0.0051*L-3.245 and W= 0.0053*L-3.237, respectively; the von Bertalanffy) growth equations were L-t=49.09(1-e(-0.186(t+1.484))); L-t=31.44(l-e(-0.886(t+0.886))) and L,=52.12(1-e(-0163(t+ 1.609))) for females, males and both sexes, respectively. The growth performance index value (0) was computed as 2.646 for all specimens. The gonadosomatic index (GSI) values indicated that spawning occurred from late December (2.268) to the end of March (6.158). Males matured at a fork length of 17.7 cm, while females matured at 19.0 cm.
Açıklama
Anahtar Kelimeler
Osteichthyes, Triglidae, Chelidonichthys lucernus, age, growth, reproduction, Izmir Bay, Aegean Sea, Mediterranean
Kaynak
Acta Adriatica
WoS Q Değeri
N/A
Scopus Q Değeri
Cilt
48
Sayı
2
