Age and growth of adult gilthead seabream (Sparus aurata L.) in the Aegean Sea
Küçük Resim Yok
Tarih
2011
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Cambridge Univ Press
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Age and growth of adult gilthead seabream, Sparus aurata were determined from 332 specimens (total N = 476), collected from purse-seiners, in the south-eastern Aegean Sea from November 2006 to January 2007. The fork length and body wet weight ranged from 26.5 to 51.5 cm (mean: 36.6 +/- 0.18) and from 375 to 2600 g (mean: 1009.2 +/- 14.16), respectively. Age groups were varied between 2 and 7. Growth parameters were estimated as L(infinity) = 64.97 +/- 12.93 cm, K = 0.14 +/- 0.07 year(-1), t(0) = -2.47 +/- 1.09 year(-1), and index of phi-prime was Phi' = 2.772 +/- 0.51. The length - weight relationship equation of all fish was calculated as W = 0.0515 x L(2.737) (r(2) = 0.95). The mean condition factor was estimated as 2.058. Mortalities (M, F and Z) and exploitation rate (E) of gilthead seabream from the Aegean Sea were 0.34 year(-1), 0.77 year(-1), 1.11 year(-1) and 0.69 year(-1), respectively. The result of E indicated that the population was overexploited.
Açıklama
Anahtar Kelimeler
gilthead seabream, Sparus aurata, age and growth, mortality, Aegean Sea
Kaynak
Journal of the Marine Biological Association of the United Kingdom
WoS Q Değeri
Q3
Scopus Q Değeri
Q3
Cilt
91
Sayı
6
