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Seasonal Distribution of Key Small-Sized Fish in the South Inshore of Zhejiang, China

文献类型： 外文期刊

作者： Xu, Minghao 1 ; Gao, Xiaodi 2 ; Liu, Weicheng 3 ; Wang, Jiaqi 5 ;

作者机构： 1.Univ Sydney, Fac Arts & Social Sci, Sydney, NSW 2050, Australia

2.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China

3.Zhejiang Mariculture Res Inst, Wenzhou 325005, Peoples R China

4.Zhejiang Key Lab Coastal Biol Germplasm Resources, Wenzhou 325005, Peoples R China

5.Shanghai Ocean Univ, Coll Marine Living Resource Sci & Management, Shanghai 201306, Peoples R China

关键词： small-sized fish; habitat preference; seasonal variation; the south inshore of Zhejiang

期刊名称：FISHES （ 影响因子：2.4； 五年影响因子：2.4 ）

ISSN：

年卷期： 2024 年 9 卷 10 期

页码：

收录情况： SCI

摘要： Small-sized fish are a vital food source for large predatory commercial fish and play a key role in marine food webs, bridging lower and higher trophic levels. They are indispensable in maintaining the energy flow and material cycling within aquatic ecosystems. This study utilized bottom-trawl survey data from 2017 to 2020 along the south inshore of Zhejiang, China, complemented by concurrent environmental data, to examine the influence of environmental factors on the resource density and seasonal distribution patterns of four dominant small-sized fish species. The research findings indicated that SSH (sea surface height) and Chl (chlorophyll-a concentration) emerged as the key environmental factors influencing resource densities, with all four species exhibiting similar preferences toward these variables. However, significant disparities were observed in their preferences for SST (sea surface temperature), SSS (sea surface salinity), and DO (dissolved oxygen). The various species' resource density and distribution patterns underwent significant seasonal variations. Additionally, the seasons and regions with the highest resource densities consistently aligned, occurring predominantly in autumn within the northern waters of the study area. This research further elucidated the environmental predilections and seasonal spatial distribution traits of small-sized fish in the south inshore of Zhejiang, an important feeding ground for economic fish species in the East China Sea. This provides scientific backing for forecasting alterations in coastal fishery resources under environmental and climate change scenarios and supports ecosystem-based fisheries management strategies.

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