Study on the taxonomic diversity of fish in the East China Sea hairtail national aquatic germplasm resources conservation zone
文献类型： 外文期刊
作者： Wang, Yufei 1 ; Zhang, Hanye 1 ;
作者机构： 1.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai, Peoples R China
2.Shanghai Ocean Univ, Coll Marine Sci, Shanghai, Peoples R China
3.Minist Agr & Rural Affairs, Key Lab East China Sea Fishery Resources Exploitat, Shanghai, Peoples R China
关键词： Aquatic germplasm resources; Conservation zone; Average taxonomic distinctness; Variation in taxonomic distinctness
期刊名称：REGIONAL STUDIES IN MARINE SCIENCE （ 影响因子：2.1； 五年影响因子：2.1 ）
ISSN： 2352-4855
年卷期： 2023 年 68 卷
页码：
收录情况： SCI
摘要： The species composition and taxonomic diversity of fish in the East China Sea hairtail national aquatic germ-plasm resources conservation zone (EHCZ) were analyzed by average taxonomic distinctness (A+) and variation in taxonomic distinctness (A+) based on the fishery resource survey from 2009 to 2022. It was found that there are 169 species of fish that are collected in the EHCZ, belonging to 26 orders, 73 families, and 131 genera. The A+ of EHCZ was about 65.5 and A+was about 40.2. The A+ has exhibited a slightly down trend over the decade, which implies a slight decrease in fish diversity. The A+ was highest in spring, possibly due to fish migration for spawning. Most of the A+ of a year fall within the 95% confidence funnel for A+ values and all A+ of a year fall within the 95% confidence funnel for A+ values. The indices were relatively stable and close to the expected value. Moreover, we recommend optimizing the protection period, improving fishing gear and methods, reducing bycatch and decreasing the number of fishing vessels and vessel power to restore the fish diversity.
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