Spatial patterns of the fish community and their seasonal variations in Zhoushan Fishing Ground

Zhao Ruohan; Yang Jing; Sun Yang; He Yuyan; Wang Jing; Wang Yingbin; Li Yuru

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Zhao Ruohan，Yang Jing，Sun Yang, et al. Spatial patterns of the fish community and their seasonal variations in Zhoushan Fishing Ground[J]. Haiyang Xuebao，2025, 47(x)：1–9

Citation:

Zhao Ruohan，Yang Jing，Sun Yang, et al. Spatial patterns of the fish community and their seasonal variations in Zhoushan Fishing Ground[J]. Haiyang Xuebao，2025, 47(x)：1–9

Citation:

Zhao Ruohan，Yang Jing，Sun Yang, et al. Spatial patterns of the fish community and their seasonal variations in Zhoushan Fishing Ground[J]. Haiyang Xuebao，2025, 47(x)：1–9

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Spatial patterns of the fish community and their seasonal variations in Zhoushan Fishing Ground

Zhao Ruohan¹,
Yang Jing¹,
Sun Yang¹,
He Yuyan¹,
Wang Jing¹,
Wang Yingbin^{1, 2},
Li Yuru^{1
,
,}

1.
School of Fisheries, Zhejiang Ocean University, Zhejiang Zhoushan 316022, China
2.
Zhejiang Marine Fisheries Research Institute, Zhejiang Zhoushan, 316021, China

Received Date: 2024-11-04
Rev Recd Date: 2025-02-20

Available Online: 2025-04-11

Abstract

Abstract

Zhoushan Fishing Ground (ZFG) is the largest fishing ground in China, with rich fishery resources. Under the effects of climate changes and anthropogenic disturbances, changes in local marine environment and selective fishing have increased spatial heterogeneity of habitat and function of the fish communities, and futher result in instability of ecosystem. Traditional studies were major focus on the spatial patterns of the fish communities based on taxonomic level in the ZFG. However, there are still knowledge gaps about the spatial patterns of the functional structure of the fish communities because of shortage in functional data of fishes. Here, we investigate the spatial patterns of the taxonomic and functional structures of the fish communities and their seasonal variations in ZFG, as well as their correlations with environmental variables. The fishery surveys were conducted in 4 seasons during 2006-2007. To measure the functional compositions of the fish communities, community-weighted mean trait values (CWM_s) were calculated for each functional trait of fishes. β diversities were calculated to measure the spatial heterogeneity of the fish communities. Our results indicated that most of CWM_sshowed significant difference between at least two seasons. Taxonomic and functional β diversities showed high values with range from 0.7423～0.8396 and 0.7184～0.7824, respectively, indicating that the taxonomic and functional structures have high levels of spatial heterogeneity. In addition, the taxonomic β diversities showed significant change with seasons, and significantly related to water depth, salinity, and chemical oxygen demand (COD), while functional β diversities showed different patterns. The results contribute to a better understanding of the spatial patterns of the fish communities and their seasonal dynamics in ZFG, and guilde for biodiversity conservation and fishery resource management.
- Marine fish,
- functional traits,
- spatial heterogeneity,
- β diversity,
- community-weighted mean trait values

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References(39)

References

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