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Journal of Animal and Veterinary Advances
Year: 2007 | Volume: 6 | Issue: 5 | Page No.: 627-634
Growth Characteristics of the Chub Mackerel (Scomber japonicus Houttuyn, 1782) in Izmir Bay (Aegean Sea, Turkiye)
Bahar Bayhan
 
Abstract: Age and growth of chub mackerel, Scomber japonicus, were studied in the Izmir Bay (Aegean Sea). A total of 520 specimens were collected during the period November 1997 to October 1998 from purse-seine boats operating in the Izmir Bay. Fork lengths ranged between 12.5 and 27.2 cm. Overall female: Male ratio was 1:1.13. Age distribution of the samples ranged from I to IV years (otolith readings). Chub mackerel grew positive allometrically (b = 3.400.05 at 95% confidence level). Growth parameters of the population were: L = 27.15 cm, K = 0.20 year 1, t0 = -0.48 years for females; L8 = 29.64 cm, K = 0.23 year 1, t0 = -0.39 years for males and L8 = 29.87 cm, K = 0.20 year 1, t0 = -0.36 years for both sexes. Growth index ( `) was calculated as 2.29, 2.31 and 2.25, respectively for females, males and sexes combined.
 
How to cite this article:
Bahar Bayhan , 2007. Growth Characteristics of the Chub Mackerel (Scomber japonicus Houttuyn, 1782) in Izmir Bay (Aegean Sea, Turkiye) . Journal of Animal and Veterinary Advances, 6: 627-634.
URL: http://medwelljournals.com/abstract/?doi=javaa.2007.627.634