大亚湾南部海域渔业资源水声学评估
Underwater Acoustics Assessment on Fishery Resources in the Southern Daya Bay
王东旭 1陈国宝 2汤勇 3李斌 1王志超1
作者信息
- 1. 大连海洋大学,海洋科技与环境学院,辽宁大连 116023;中国水产科学研究院南海水产研究所,广东广州 510300
- 2. 中国水产科学研究院南海水产研究所,广东广州 510300;农业部南海渔业资源环境科学观测实验站,广东广州 510300
- 3. 大连海洋大学,海洋科技与环境学院,辽宁大连 116023
- 折叠
摘要
[目的]对大亚湾南部海域渔业资源的生物资源密度和总资源量进行水声学评估.[方法]2015年利用Simrad EY60声学系统进行了春季、夏季、秋季和冬季4个航次的声学调查,并以传统拖网方式同步采集生物学资料,对大亚湾南部海域的生物资源密度和总资源量进行了评估.[结果]2015年4月春季调查航次的平均生物资源密度为7.38×103 kg/n mile2,总资源量为172.8 t,优势种为二长棘鲷(平均生物资源密度为2.37×103 kg/n mile2);2015年8月夏季调查航次的平均生物资源密度为8.58×103 kg/n mile2,总资源量为200.9 t,优势种为黄鳍马面鲀(平均生物资源密度为3.29×103 kg/n mile2);2015年10月秋季调查航次平均生物资源密度为6.52×103 kg/n mile2,总资源量为152.6 t,优势种为短吻鲾(平均生物资源密度为2.59×103 kg/n mile2);2015年12月冬季调查航次的平均生物资源密度为6.36×103 kg/n mile2,总资源量为148.9 t,优势种为皮氏叫姑鱼(平均生物资源密度为0.82×103 kg/n mile2).[结论]该研究结果可为大亚湾南部海域海业资源的养护和管理提供科学依据.
Abstract
[Objective] To make underwater acoustics assessment on biomass density and total biomass of fishery resources in the southern Daya Bay.[Method] Using Simrad EY60 acoustics system,four times of acoustics survey was made in four seasons of 2015,and biological data were synchronously sampled by traditional trawling method.The biomass density and total biomass in southern Daya Bay were assessed.[Result] In spring survey,the average biomass density in June of 2015 was 7.38×103 kg/n mile2,its total biomass was 172.8 t,and the dominant species was Paerargyrops edita(average biomass density of 2.37×103 kg/n mile2).In summer survey,the average biomass density in August of 2015 was 8.58×103 kg/n mile2,the total biomass was 200.9 t,the dominant species was Navodon xanthopterus(average biomass density of 3.29×103 kg/n mile2).In autumn survey,the average biomass density in October of 2015 was 6.52×103 kg/n mile2,total biomass was 152.6 t,the dominant species was Leiognathus brevirostris(average biomass density of 2.59×103 kg/n mile2).In winter survey,the average biomass density in December of 2015 was 6.36×103 kg/n mile2,the total biomass was 148.9 t,the dominant species was Johnius belangerii(average biomass density of 0.82×103 kg/n mile2).[Conclusion] The research results can provide scientific basis for the maintenance and management of fishery resources in the southern Daya Bay.
关键词
水声学评估/平均生物资源密度/总资源量/大亚湾Key words
Underwater acoustics assessment/Average biomass density/Total biomass/Daya Bay引用本文复制引用
基金项目
公益性行业(农业)科研专项(201403008)
深圳市科技计划项目(JSGG20141015154342147)
农业部财政项目南海海洋捕捞生产结构调查项目(640)
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据