苍南海域中国毛虾种群生物学特征及其资源状况OA
On the biological characteristics and resource status of Acetes chinensis population in Cangnan sea area
2022年5月、8月、11月和2023年2月,于苍南海域共采集2 286尾中国毛虾(Acetes chinensis)样本,测定其体长、体质量、性别等生物学特征,并运用FiSAT Ⅱ软件对其生长、死亡参数及资源利用状况等进行评估.结果显示:调查期间中国毛虾雌雄性比平均为1.66︰1;体长为11.2～50.1 mm,平均(35.1±6.4)mm,雌雄体长差异显著(P<0.05);最优拟合得到体质量-体长关系式W=2.264 8×10-5L2.569 9,体长、体质量生长方程分别为Lt=49.88[1-e-1.5(t+0.15)]和Wt=0.523[1-e-1.5(t+0.15)]2.569 9;自然死亡系数(M)为3.24a-1,捕捞死亡系数(F)为1.13a-1;开捕体长(Lc)为29.0 mm,等于最适开捕体长(Lopt)29.0 mm;年资源开发率(E)为0.259,小于资源量下降原始水平50％的开发率(E0.5)(0.392).结果表明,苍南海域中国毛虾资源处于轻度开发状态,鉴于苍南海域毛虾捕捞产业是当地渔民致富增收的支柱产业,同时我国目前实施伏季休渔毛虾限额捕捞已有成熟先例,建议可适当探索开展苍南毛虾伏季休渔限额捕捞工作.
To understand and master the population biological characteristics and resource development status of Acetes chinensis in Cangnan sea area,a total of 2 286 samples of A.chinensis were collected on board the Cangnan A.chinensis production fishing vessels in May and August 2022,November 2022,and February 2023.Biological characteristics such as body length,body weight,and sex were measured,and the FiSAT II software was used to evaluate the growth,mortality parameters and resource utilization.The results showed that during the survey period,the average female-male sex ratio of A.chinensis was 1.66:1.The body length range was 11.2-50.1 mm,with an average of(35.1±6.40)mm,and there was a significant difference in body length distribution between males and females(P<0.05).The optimal fitting obtained the relationship between body weight and body length as W=2.264 8×10-5L2.569 9,and the growth equations for body length and body weight were Lt=49.88[1-e-1.5(t+0.15)]and Wt=0.523[1-e-1.5(t+0.15)]2.569 9,respectively.The natural mortality coefficient(M)was 3.24 a-1,and the fishing mortality coefficient(F)was 1.13 a-1.The minimum legal fishing length(Lc)was 29.0 mm,which was equal to the optimal fishing length(Lopt)of 29.0 mm.The annual resource exploitation rate(E)was 0.259 which was less than E0.5(0.392).The results indicated that the resources of A.chinensis in Cangnan sea area were in a state of mild development,an under-developed state.Given that the A.chinensis fishing industry in Cangnan sea area is a pillar industry for local fishermen to increase their incomes,and there are already mature precedents for implementing quota fishing of A.chinensis during the summer fishing moratorium in China,it is recommended to appropriately explore the implementation of quota fishing of A.chinensis during the summer fishing moratorium in Cangnan sea area.
秦松;邱文致;叶深;艾龙威;张明燡;范青松;张华伟;刘伟成
浙江省海洋水产养殖研究所,全省近岸生物种质资源保护与利用重点实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,浙江泰国海洋技术联合实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,温州市海洋生物遗传育种重点实验室,浙江 温州 325000浙江省海洋水产养殖研究所,全省近岸生物种质资源保护与利用重点实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,浙江泰国海洋技术联合实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,温州市海洋生物遗传育种重点实验室,浙江 温州 325000||温州大学生命与环境科学学院,浙江 温州 325035浙江省海洋水产养殖研究所,全省近岸生物种质资源保护与利用重点实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,浙江泰国海洋技术联合实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,温州市海洋生物遗传育种重点实验室,浙江 温州 325000浙江省海洋水产养殖研究所,全省近岸生物种质资源保护与利用重点实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,浙江泰国海洋技术联合实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,温州市海洋生物遗传育种重点实验室,浙江 温州 325000||温州大学生命与环境科学学院,浙江 温州 325035中国水产科学研究院长岛增殖实验站,山东 烟台 265800浙江省海洋水产养殖研究所,全省近岸生物种质资源保护与利用重点实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,浙江泰国海洋技术联合实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,温州市海洋生物遗传育种重点实验室,浙江 温州 325000浙江省海洋水产养殖研究所,全省近岸生物种质资源保护与利用重点实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,浙江泰国海洋技术联合实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,温州市海洋生物遗传育种重点实验室,浙江 温州 325000浙江省海洋水产养殖研究所,全省近岸生物种质资源保护与利用重点实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,浙江泰国海洋技术联合实验室,浙江 温州 325000||浙江省海洋水产养殖研究所,温州市海洋生物遗传育种重点实验室,浙江 温州 325000
农业科技
中国毛虾苍南海域性比体长股分析法资源开发率
Acetes chinensisCangnan sea areasex ratiolength-based cohort analysisresource development rate
《海洋渔业》 2026 (1)
11-22,12
国家重点研发计划(2020YFD0900805)温州市基础公益科研项目(N20220018)温州河口渔业资源养护试点专项调查研究(JS2022071)
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