Estimation of Biological Parameters in Common Carp Cyp rinus carpio Collected in the Yangtze River Waterway in Poyang Lake by Support of FiSAT ⅡSoftware
Abstract：Growth ,mortality and recruitment were estimated based on length‐frequency data in common carp Cyprinus carpio collected from the set net fishery survey in Poyang Lake through the Yangtze River Waterway from March ,2012 to February ,2013 ,using FiSAT Ⅱ software .The results showed that the common carp population had body length of 55—720 mm ,and that the relationship between body length (L ,mm) and body weight (m ,g) was expressed as m = 3 .021 × 10‐5 L2 .955 (r2 =0 .978 ,n= 549) .The es‐timated parameter for von Bertalanffy growth equation was found to be L ∞ = 753 .38 mm ,k= 0 .170 ,t0 =-0 .687 .Total mortality (Z) was estimated as 0 .701a‐1 ,natural mortality (M ) 0 .362 a-1 ,and fishing mor‐tality (F) 0 .339 a-1 .The recruitment pattern showed a continuous trend with double peaks in March and June .The exploitation rate of 0 .484 was very close to the maximal catching rate of Emax0 .472 in the knife-edge model ,indicating that the current fishing activity was very high in Poyang Lake through the Yan‐gtze River Waterway .Meanwhile ,the population intrinsic dynamics needs to be further studied .
收稿日期: 2015-04-25
引用本文:
吴斌,方春林,贺刚,傅培峰,熊小英,周辉明,张燕萍,王生,王庆萍. FiSATⅡ软件支持下鄱阳湖通长江水道鲤鱼的生物学参数估算[J]. 水产科学, 2015, (4): 256-260.
WU Bin,FANG Chunlin,HE Gang,FU Peifeng,XIONG Xiaoying,ZHOU Huiming,ZHANG Yanping,WANG Sheng,WANG Qingping. Estimation of Biological Parameters in Common Carp Cyp rinus carpio Collected in the Yangtze River Waterway in Poyang Lake by Support of FiSAT ⅡSoftware. Fisheries Science, 2015, (4): 256-260.
