基于有限数据的东海区小黄鱼资源评估及管理
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- 英文论文题名：Stock assessment and management strategies for small yellow croaker in the East China Sea based on data-limited methods
- 论文作者：刘尊雷 ; 金艳 ; 杨林林 ; 袁兴伟 ; 严利平 ; 程家骅
- 英文论文作者：LIU Zunlei ; JIN Yan ; YANG Linlin ; YUAN Xingwei ; YAN Liping ; CHENG Jiahua ; East China Sea Fisheries Research Institute ; Chinese Academy of Fishery Sciences
- 年：2016
- 作者机构：农业部东海与远洋渔业资源开发利用重点实验室中国水产科学研究院东海水产研究所;
- 论文关键词：东海 ; 小黄鱼 ; 有限数据方法 ; 资源评估 ; TAC
- 英文论文关键词：East China Sea ; small yellow croaker ; data-limited methods ; stock assessment ; TAC
- 会议召开时间：2016-11-02
- 会议录名称：2016年中国水产学会学术年会论文摘要集
- 语种：中文
- 分类号：S932.4
- 学会代码：OGSB
- 会议名称：2016年中国水产学会学术年会
- 会议地点：中国四川成都
- 主办单位：中国水产学会、四川省水产学会
- 学会名称：中国水产学会
- 页数：1
- 文件大小：515k
- 原文格式：D
- 会议级别：全国
摘要
传统的渔业资源评估方法需要以翔实丰富的调查或渔业数据为基础,而现有的大多数种类存在着渔获量、基础生物学、有效捕捞努力量等数据的缺失,因此并不适合采用数据需求较高的模型进行评估和管理。本研究以东海区小黄鱼为例,根据渔获量、自然死亡、消耗率、生物学参数、开捕体长等数据,采用34种有限数据评估方法分析了小黄鱼的总允许捕捞渔获量(TAC)。结果表明:基于Dep F、YPR、DBSRA4010等9种方法的TAC中位数低于5万吨,BK、SPslope、SPSRA等10种方法 TAC中位数介于5~10万吨,DCAC40、DCAC4010、DCAC等8种方法 TAC中位数为10-15万吨,高于15万吨的方法有7种。本研究提出2种小黄鱼种群评估和管理方案。其一,多模型平均法,即丢弃TAC超过20万吨的评估方法(4种),对其它30种方法算术平均,TAC约为8.5万吨;其二,参考其它评估模型的TAC结果(7.7~9.93万吨t),筛选TAC位于7~10万吨的评估方法用于今后的小黄鱼种群渔业管理,评估方法包括Islope4、MCD、DBSRA、Itarget1、CC4。
Conventional stock assessment methods required adequate fishery-independent data.However, the majority of fish stocks lack adequate catch, survey, effort and other biological data.The lack of methods is becoming a constraint for data-limited fishery management. In this paper,total allowable catch(TAC) was illustrated by the case of small yellow croaker in ECS based on34 data limited assessment methods, according to available information such as catch, natural mortality, depletion, biological parameters etc. The results were variant with different methods.Among them, median TAC value was under 5×104 t using nine methods such as Dep F、 YPR 、DBSRA4010 etc. It came to 5~10×104 t when adopted ten methods like BK、SPslope、SPSRA etc.It resulted in more than 15×104 t with other seven methods, especially with DD and DD4010, the median TAC was higher than a million tones.
Conventional stock assessment methods required adequate fishery-independent data.However, the majority of fish stocks lack adequate catch, survey, effort and other biological data.The lack of methods is becoming a constraint for data-limited fishery management. In this paper,total allowable catch(TAC) was illustrated by the case of small yellow croaker in ECS based on34 data limited assessment methods, according to available information such as catch, natural mortality, depletion, biological parameters etc. The results were variant with different methods.Among them, median TAC value was under 5×104 t using nine methods such as Dep F、 YPR 、DBSRA4010 etc. It came to 5~10×104 t when adopted ten methods like BK、SPslope、SPSRA etc.It resulted in more than 15×104 t with other seven methods, especially with DD and DD4010, the median TAC was higher than a million tones.
引文