Age, Growth, Mortality and Reproduction of the Chub Mackerel (Scomber japonicus Houttuyn, 1782) from Saros Bay (Northern Aegean Sea, Turkey)
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Tarih
2012
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Central Fisheries Research Inst
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Age, growth, mortality and reproduction of the chub mackerel (Scomber japonicus Houttuyn, 1782) were determined using specimens collected from Saros Bay between January 2009 and December 2009. The length-weight relationship was calculated as W=0.0061TL(3.12) for females, W=0.00691TL(3.08) for males and W=0.0066TL(3.10) for all samples Growth parameters of the populations were L-infinity=37.3 cm, k=0.22 year(-1), t(0)=-1.93 year for females; L-infinity=41.4 cm, k=0.17 year(-1), t(0)=-2.37 year for males and L-infinity=39.0 cm, k=0.20 year(-1), t(0)=-2.13 year for all samples. It was observed that spawning period occurred between June and August. The length at first maturity was estimated as 18.0 cm for all samples. Total mortality rate (Z), natural mortality rate (M), fishing mortality rate (F) and exploitation rate (E) of the chub mackerel were 0.91 year(-1), 0.34 year(-1), 0.57 year(-1) and 0.62 year(-1), respectively
Açıklama
Anahtar Kelimeler
Stock structure, chub mackerel, northeast Aegean Sea, Turkey
Kaynak
Turkish Journal of Fisheries and Aquatic Sciences
WoS Q Değeri
Q4
Scopus Q Değeri
Cilt
12
Sayı
4
