Age and Growth of the Bluemouth Rockfish, Helicolenus dactylopterus (Delaroche 1809) from the North-Eastern Mediterranean Sea, Turkey
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Dosyalar
Tarih
2015
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Zoological Soc Pakistan
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
In the recent study,. age, growth and length-weight relations-hip of Helicolenus dactylopterus (Delaroche, 1809) were investigated. A total of 525 specimens were collected from bottom-trawl research surveys and commercial trawl fishery along the southern continental slope of the Iskenderun Bay between June 2012 and May 2014. Age was determined by reading whole sagittal otoliths. Fish ranged froth 9.3 to 20.9 cm in total length, which corresponded to fish between 1 to 8 years old. Growth parameters were estimated using the standard Von Bertalanffy growth model (k=0.064, L infinity=35.419 cm and to =-4.797 for combined sexes). Length-weight relationships were estimated for females (W=0.0385L(2) (6645)) and males (W=0.0345L(2 7089)). The low level of maximum length registered in this study could be related to high pressure level of trawl fishery during the last two decades in Iskenderun Bay.
Açıklama
Anahtar Kelimeler
Helicolenus dactylopterus, bluemouth rockfish, length-weight relationship, otoliths, Von Bertalanffy growth model
Kaynak
Pakistan Journal of Zoology
WoS Q DeÄŸeri
Q4
Scopus Q DeÄŸeri
Cilt
47
Sayı
2
