RT Journal T1 ASSESSMENT OF LIFE HISTORY TRAITS OF CHANNA MARULIUS FOR FISHERY MANAGEMENT IN PAKISTAN A1 D. Guilin A1 M. Mohsin A1 M. Noman A1 S. A. Raza A1 A. Mehak JF Journal of Animal and Plant Sciences JO JAPS SN 1018-7081 VO 29 IS 2 SP 585 OP 593 YR 2019 FD 2019/04/01 DO DOI NA AB

This is the first attempt to investigate growth and mortality parameters of Channa marulius (Hamilton, 1822), a major murrel species, caught from the Indus River, Pakistan. Six research surveys were conducted at Chasma Barrage, located on the Indus River, during the months May-October, 2016. Length-weight and length frequency readings, n = 674, were collected and evaluated by using FiSAT II computer application. The observed length and weight ranged between 5-39 cm and 1-301 g correspondingly. The estimated values of b, a and R2 remained 3.033, 0.006 and 0.987 respectively. Growth parameters, L∞ = 40.95 and K = 0.3 year-1, were evaluated by applying ELEFAN I routine via von Bertalanffy growth equation. The computed values, by employing LCCC, of Z, M, F and E remained 1.18 year-1, 0.68 year-1, 0.5 year-1 and 0.42 year-1 in that order. YPRA indicated that when tc = 1, estimated values of Fmax, F0.1 and Fcurrent were 0.9 year-1, 0.75 year-1 and 0.50 year-1 correspondingly. LSVPA indicated the highest mortality rates were in the 29-32 cm length cohort. The lower value of Fcurrent, 0.50 year-1, than Gulland BRP, M = Fopt = 0.68 year-1, suggests that this fishery resource is in a safe condition.

K1 growth, mortality, Channa marulius, Indus River, Pakistan PB Pakistan Agricultural Scientists Forum LK https://thejaps.org.pk/AbstractView.aspx?mid=2019-JAPS-230