Research Information System
Pakistan Journal of Zoology, vol.49, no.3, pp.825-832, 2017 (SCI-Expanded, Scopus)
In this study, growth parameters (i.e. condition factor, length-weight relationship, K, LCopyright 2017 Zoological Society of Pakistan∞, t0), mortality rate (Z, M, and F), recruitment pattern and yield were investigated for Oncorhynchus mykiss in Karacaören I Dam Lake. Fish were collected on monthly basis between July, 2013 and June, 2014. Growth parameters were analyzed by ELEFAN with monthly length-frequency data. The b values of the length-weight relationship, mean condition factor, K (growth coefficient), L∞ (asymptotic length) and t were estimated as 3.207, 1.13, 0.33 year-1, 36.50 cm and -0.476 years, respectively. Total mortality (Z) by length-converted catch curve was estimated at 0.83 year-1, fshing mortality (F) 0.14year-1, natural mortality (M) 0.69 year-1 and exploitation rate (E) 0.17. According to the result of Relative Yield/Recruit analysis estimated E >E, so in this context stock of O. mykiss was not overexploited in Karacaören I Dam Lake.