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作 者:潘鑫伟 尹增强[1] 李效恒 Pan Xinwei(Dalian Ocean University,Dalian 116023,China)
机构地区:[1]大连海洋大学
出 处:《安徽农学通报》2020年第2期81-85,共5页Anhui Agricultural Science Bulletin
摘 要:根据2016年7月,2016年9月,2016年11月,2017年1月以及2017年3月唐山海洋牧场周围海域调查数据,分析了矛尾鰕虎鱼的生长特征,并对矛尾鰕虎鱼的资源量进行了估算。结果表明,矛尾鰕虎鱼的最小体长83mm,最大体长357mm,平均体长156.81mm,体长优势组在113~143mm;最大体质量232.8g,最小体质量6.50g,平均体质量46.37g,体重优势组在6.5~29.13g;体长和体质量关系式为W=0.0001L^2.5681,(n=87,R^2=0.9863),体长生长方程为Lt=370.65×[1-e^-0.87(t+0.1533)],体质量生长方程为Wt=219.01×[1-e^-0.87(t+0.1533)]^2.5681;总死亡系数Z为1.836,自然死亡系数M为1.25,捕捞死亡系数F为1.145;拐点年龄为0.89龄,临界年龄为1.644龄;资源生物量约为15.57t,总资源尾数约3628564尾,基于该海域矛尾鰕虎鱼资源现状,估算其最适开捕体长为113~143mm。According to the survey data of the sea area around Tangshan marine ranch in July 2016,September 2016,November 2016,January 2017 and March 2017,the growth characteristics of Chaeturichthys stigmatias were ana⁃lyzed,and the resources were estimated.The results showed that the minimum body length was 83mm,the maximum body length was 357mm,the average body length was 156.81mm,the body length advantage group was 113mm-143mm,the maximum body weight was 232.8g,the minimum body weight was 6.50g,the average body weight was 46.37g,the weight advantage group was 6.5-29.13g.The relationship formula between body length and body weight was W=0.0001L^2.5681,(n=87,R^2=0.9863).The Von Bertalanffy growth function of body length was Lt=370.65×[1-e^-0.87(t+0.1533)],Von Bertalanffy growth function of body weight wasWt=219.01×[1-e^-0.87(t+0.1533)]^2.5681.The total death coef⁃ficient(Z)was 1.836,the natural death coefficient(M)was 1.25,and the fishing death coefficient(F)was 1.145.The turning point age was 0.89,and the critical age was 1.644;the resource biomass was about 15.57t,the total re⁃source tail number was about 3628564.Based on the current situation of the resources of the sea area,it was estimat⁃ed that the most suitable catchable length was 113~143mm.
关 键 词:矛尾鰕虎鱼 Von Bertalanffy生长方程 生长特征 资源量评估
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