上海海洋大学学报2024，Vol.33Issue(4)：911-926,16.DOI:10.12024/jsou.20230904320
基于环境DNA技术的黑潮-亲潮交汇区夏季鱼类物种多样性分析
Fish diversity analysis of the Kuroshio-Oyashio confluence region in summer based on environmental DNA technology
摘要
Abstract
The Kuroshio-Oyashio confluence region of the Northwest Pacific Ocean is one of the most productive fishing areas,which is rich of fish resources.In order to understand the biodiversity of fish communities in the confluence region and to protect and exploit fishery resources properly,we used environmental DNA(eDNA)to analyze the fish diversity in the Kurishio-Oyashio confluence region during the summer.A total of 51 species of marine fishes(22 orders,30 families and 44 genera)were detected among 22 water sampling stations using high-throughput sequencing analysis.The Myctophidae family was the richest in species,comprising 33.33％of the detected fish species.In addition,the primary species with higher relative abundance were Stenobrachius nannochir,Gonostoma atlanticum,Notoscopelus japonicus,Sardinops melanostictus,Takifugu poecilonotus,Ceratoscopelus warmingii,Hexagrammos agrammus,Scomber japonicus,Nematalosa japonica and Diaphus kuroshio.The alpha diversity among stations was obviously different,and there were higher biodiversity in low-latitude sections than that of high-latitude sections.Redundancy analysis showed that the content of dissolved oxygen was the main environment factor impacting the fish species composition.The results indicated that eDNA can be a useful method for monitoring fish diversity and spatial distribution in the Kuroshio-Oyashio confluence region.关键词
环境DNA/黑潮-亲潮交汇区/鱼类/生物多样性Key words
environmental DNA/Kuroshio-Oyashio confluence region/fish/biodiversity分类
生物科学引用本文复制引用
梁绪虹,王丛丛,刘洋,俞晔伟,宋成辉..基于环境DNA技术的黑潮-亲潮交汇区夏季鱼类物种多样性分析[J].上海海洋大学学报,2024,33(4):911-926,16.基金项目
农业农村部全球渔业资源调查监测评估(公海渔业资源综合科学调查)专项(D-8021-22-0129-01) （公海渔业资源综合科学调查）
