| 基于长度贝叶斯生物量估算法评估北部湾大头白姑鱼资源状况 |
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| 引用本文： | 王淼娣,王雪辉,孙典荣,王跃中,陈新军,杜飞雁,邱永松. 基于长度贝叶斯生物量估算法评估北部湾大头白姑鱼资源状况[J]. 南方水产科学, 2021, 0(2): 20-27 |
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| 作者姓名： | 王淼娣 王雪辉 孙典荣 王跃中 陈新军 杜飞雁 邱永松 |
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| 作者单位： | 上海海洋大学海洋科学学院;中国水产科学研究院南海水产研究所/广东省渔业生态环境重点实验室/农业农村部外海渔业开发重点实验室 |
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| 基金项目： | 国家科技基础资源调查专项(2017FY201405,218FY100105);中国水产科学研究院基本科研业务费项目(2019HY-JC0203,2019GH02);中越北部湾共同渔区联合调查资助。 |
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| 摘 要： | 大头白姑鱼(Pennahia macrocephalus)是北部湾主要经济鱼类种群之一,研究其资源状况对北部湾渔业资源的可持续利用具有重要意义.该研究基于2006—2014年北部湾大头白姑鱼生物学数据,通过长度贝叶斯生物量估算法(Length-based Bayesian biomass estimation meth...
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| 关 键 词： | 大头白姑鱼 种群参数 数据有限 长度频率 长度贝叶斯生物量估算法 北部湾 |
Assessment of Pennahia macrocephalus stock in Beibu Gulf by length Bayesian biomass estimation method |
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| WANG Miaodi,WANG Xuehui,SUN Dianrong,WANG Yuezhong,CHEN Xinjun,DU Feiyan,QIU Yongsong. Assessment of Pennahia macrocephalus stock in Beibu Gulf by length Bayesian biomass estimation method[J]. South China Fisheries Science, 2021, 0(2): 20-27 |
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| Authors: | WANG Miaodi WANG Xuehui SUN Dianrong WANG Yuezhong CHEN Xinjun DU Feiyan QIU Yongsong |
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| Affiliation: | (College of Marine Sciences,Shanghai Ocean University,Shanghai 201306,China;South China Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences/Guangdong Provincial Key Laboratory of Fishery Ecology and Environment/Key Laboratory of Open-Sea Fishery Development,Ministry of Agriculture and Rural Affairs,Guangzhou 510300,China) |
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| Abstract: | Pennahia macrocephalus,one of the major commercial fishes in the Beibu Gulf,is of great significance to study its stocks status.Based on the biological data of P.macrocephalus collected in the Beibu Gulf from 2006 to 2014,we estimated the asymptotic body length(L∞),relative natural mortality(M/k),relative fishing mortality(F/k),relative total mortality(Z/k),optimal body length-at-first-capture(Lc_opt),exploitation rate(E)and relative biomass index(B/B0)by the length-based Bayesian biomass estimation method(LBB).Results show that the average L∞and Lc_optwere 265 mm and 157 mm,respectively,and the relative mortality rates of M/k,F/k and Z/k were 1.39,3.58 and 4.96,respectively.The Lc_optof P.macrocephalus showed an increasing trend while the L∞showed a decreasing trend.At present,the E of P.macrocephalus is relatively high(0.58),indicating the resources have been in the state of overexploited.The B/B0 is less than 0.5,indicating the overexploitation of current stocks. |
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| Keywords: | Pennahia macrocephalus Population parameter Data-limited Length frequency Length-based Bayesian biomass estimation Beibu Gulf |
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