A Preliminary Study on Growth Parameters and Mortality Rates of the Barbel (Barbus tauricus escherichi Steindachner, 1897) in Yeşildere Stream, Rize, Turkey

Turkish Journal of Zoology

CEMALETTİN ŞAHİN¹ 

关键词: Barbel;    Barbus tauricus escherichi;    growth parameters;    mortality rates;    Yeşildere Stream;    eastern Black Sea;   

学科分类：生物科学（综合）

来源: Scientific and Technical Research Council of Turkey - TUBITAK

【 摘 要 】

Growth parameters and mortality rates of the Barbus tauricus escherichi population inhabiting in Yeşildere Stream were investigated. In particular, age and size distributions, asymptotic growth, and mortality rates by age group classes were estimated. A total of 304 B. t. escherichi specimens were sampled between June 2001 and July 2002. The population consisted of 5 age classes (i.e. 0 to IV) with minimum and maximum sizes of 5 cm to 23 cm in total length. The mean growth parameters were determined as L_{infinity} = 26.63 cm, K = 0.274, and t_0 = -1.009 with the scale method and as L_{infinity} = 27.11 cm, K = 0.267, t_0 = -1.117, and Z = 1.06 with the Bhattacharya method.

【 授权许可】

Unknown