Length-weight Relationship and Condition Factor of Sarotherodon Melanotheron(Perciformes:cichlidae)from Forcados River Estuary,Niger Delta,Nigeria  

作　　者：Efe Ogidiaka John Atadiose Betty O.Bekederemo 

机构地区：[1]Department of Science and Technology,Fisheries and Fisheries Technology,Delta State School of Marine Technology,Burutu,Delta State,Nigeria

出　　处：《Journal of Fisheries Science》2022年第1期13-18,共6页水产科学杂志（英文）

摘　　要：Length-weight relationship(LWR),condition factor(k)of the black chin tilapia,Sarotherodon melanotheron(Rüppel,1852)from Forcados River estuary Nigeria was investigated.The fish were collected monthly from fishermen for a period of 24 months(between April 2012 and March 2014).699 specimens of the fish species were collected.The Length-weight relationship(LWR)of the fish was evaluated using the equation:W=a L^(b) while the condition factor of the fish was determined using the equation;K=100W L^(b).The standard length of sampled S.melanotheron ranged from 4.15 to 18.92 cm,total length 6.01 and 22.5 cm while the weight ranged from 7.85-286.71 g.The b value 2.1299 was less than 3 indicating that the growth pattern of the fish was allometric.The correlation co-efficient(r)value for S.melanotheron was 0.7528.The condition factor for the combined sexes fluctuated monthly.The length-weight relationships and condition factor of S.melanotheron in Forcados river estuary indicated that the fish were above average condition.

关 键 词：Sarotherodon melanotheron Length-weight relationship Condition factor Forcados River estuary Niger Delta 

分 类 号：R73[医药卫生—肿瘤]