Biological characteristics and environmental influencing factors of <i>Rhopilema esculentum</i> Kishinouye in Shengsi sea area of Hangzhou Bay from 2022 to 2024

Xu Guoqiang; Wang Haoxue; Xu Kaida; Li Pengfei; Zhou Yongdong

doi:10.12284/hyxb20260001

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Xu Guoqiang，Wang Haoxue，Xu Kaida, et al. Biological characteristics and environmental influencing factors of Rhopilema esculentum Kishinouye in Shengsi sea area of Hangzhou Bay from 2022 to 2024[J]. Haiyang Xuebao，2025, 48(x)：1–8 doi: 10.12284/hyxb20260001

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Xu Guoqiang，Wang Haoxue，Xu Kaida, et al. Biological characteristics and environmental influencing factors of Rhopilema esculentum Kishinouye in Shengsi sea area of Hangzhou Bay from 2022 to 2024[J]. Haiyang Xuebao，2025, 48(x)：1–8 doi: 10.12284/hyxb20260001

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Biological characteristics and environmental influencing factors of Rhopilema esculentum Kishinouye in Shengsi sea area of Hangzhou Bay from 2022 to 2024

doi: 10.12284/hyxb20260001

Xu Guoqiang^{1, 2, 3
,},
Wang Haoxue^{1, 2, 3},
Xu Kaida^{1, 2, 3},
Li Pengfei^{1, 2, 3},
Zhou Yongdong^{1, 2, 3
,
,}

1.
Zhejiang Marine Fisheries Research Institute, Zhoushan 316021, China
2.
Zhoushan Field Comprehensive Scientific Observation and Research Station of the Ministry of Agriculture and Rural Affairs, Zhoushan 316021, China
3.
Scientific Observing and Experimental Station of Fishery Resources for Key Fishing Grounds, Ministry of Agriculture and Rural Affairs, Zhoushan 316021, China
4.
Key Laboratory of Sustainable Utilization of Technology Research for Fishery Resource of Zhejiang Province, Zhoushan 316021, China

Received Date: 2025-09-10
Rev Recd Date: 2025-11-25

Available Online: 2025-12-08

Abstract

Abstract

In order to study the biological characteristics of Rhopilema esculentum and its environmental influencing factors, this study analyzed the biological characteristics of R.esculentum in different years according to the monitoring data of R. esculentum resources in Shengsi sea area of Hangzhou Bay from June to July 2022 to 2024, and explored the relationship between the umbrella diameter, body weight and environmental influencing factors of R. esculentum by GAM model. The results showed that there were significant differences between umbrella diameter and body weight of R.esculentum before the special fishing permits during the summer fishing moratorium, and the growth rate of R. esculentum body weight showed different growth trends at different growth stages. The results of the GAM showed that umbrella diameter and body weight of R. esculentum increased gradually with the increase of sea surface temperature from 21.18 ℃ to 26.81 ℃. Sea surface salinity has a significant effect on the growth of R. esculentum umbrella diameter. In the salinity range of 9.3～25.2, the umbrella diameter of R. esculentum increases, and the optimum salinity is 17.7～22.7. In the interaction between sea surface temperature and salinity, the high value area of umbrella diameter and the middle value area of body weight of R. esculentum are in the range of sea surface temperature 24～26.3 ℃ and sea surface salinity 15～22. There were significant differences in umbrella diameter and body weight among years after the special fishing permits during the summer fishing moratorium. Comprehensive analysis showed that the growth of umbrella diameter and body weight of R. esculentum was affected by sea surface temperature and salinity, and the initial fishing time could be determined based on the level of sea surface temperature.
- Shengsi sea area,
- Rhopilema esculentum,
- umbrella diameter,
- body weight,
- influence factor

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References(22)

References

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