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- W2385055515 abstract "Growth and population dynamics of elongate loach(Leptobotia elongata Bleeker)were investigated by using FiSAT II software of FAO on length based data,1528 specimens of elongate loach were collected from Panzhihua,Yongshan,Shuifu,Juexi,Nanxi,Neijiang,Chishui,Jiangjin,Chengjiang and Wanzhou in the upper reaches of the Yangtze River between September 2010 and August 2012.The relationship between the body length(mm)and body weight(g)was expressed as W=1×10-5 L3.024.The growth parameters estimated by length frequency analysis were:asymptotic length(L∞ =656.10 mm),growth constant(k=0.15 year-1)and age at length 0(t0 =-0.048 year-1).The natural mortality(M)of elongate loach was 0.33 year-1 by using Pauly's M empirical equation,where the mean habitat temperature was 18.4℃.The total mortality(Z)was 0.85 year-1 and the fishing mortality(F)was 0.53year-1.The exploitation rate(E) was found to be 0.62.During 2010-2011,the average stock of elongate loach from the upper reaches of the Yangtze River was 13.21tonnes,with a number of 162 862 individuals.The MSY was estimated to be 5.17t for elongate loach.The analysis of related parameters and relative yield-per-recruit suggest that elongate loach in the upper reaches of the Yangtze River is over-exploited.Corresponding conservative fishery strategies should be carried out to protect the elongate loach in the upper reaches of the Yangtze River." @default.
- W2385055515 created "2016-06-24" @default.
- W2385055515 creator A5048939678 @default.
- W2385055515 date "2013-01-01" @default.
- W2385055515 modified "2023-09-23" @default.
- W2385055515 title "ESTIMATION OF GROWTH AND POPULATION PARAMETERS OF ELONGATE LOACH(LEPTOBOTIA ELONGATA)IN THE UPPER REACHES OF THE YANGTZE RIVER" @default.
- W2385055515 hasPublicationYear "2013" @default.
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