The distribution of water age and its effect on jellyfish abundance in Hongyanhe Nuclear Power Plant in autumn

Qiu Minzhi; Su Wei; Yao Qingzhen; Wang Yantao; Zhang Guangyue; Xu Bochao; Zhang Xiaojie

doi:10.3969/j.issn.0253-4193.2020.04.014

Volume 42 Issue 4

Nov. 2020

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Qiu Minzhi，Su Wei，Yao Qingzhen, et al. The distribution of water age and its effect on jellyfish abundance in Hongyanhe Nuclear Power Plant in autumn[J]. Haiyang Xuebao，2020, 42(4)：122–127，doi:10.3969/j.issn.0253−4193.2020.04.014

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The distribution of water age and its effect on jellyfish abundance in Hongyanhe Nuclear Power Plant in autumn

doi: 10.3969/j.issn.0253-4193.2020.04.014

Qiu Minzhi^{1, 2, 3
,},
Su Wei³,
Yao Qingzhen^{1, 2, 3},
Wang Yantao⁴,
Zhang Guangyue⁵,
Xu Bochao^{1, 2, 3},
Zhang Xiaojie^{1, 2, 3
,
,}

1.
Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao 266100, China
2.
Marine Ecology and Environmental Science Laboratory, Pilot National Laboratory for Marine Science and Technology (Qingdao), Qingdao 266071, China
3.
College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China
4.
Key Laboratory of Marine Ecology & Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
5.
School of Marine Science and Technology, Tianjin University, Tianjin 300072, China

Received Date: 2019-05-08
Rev Recd Date: 2019-06-06

Available Online: 2020-11-18

Publish Date: 2020-04-25

Abstract

Abstract

In this study, the activity range and distribution patterns of radium and radon isotopes in the coast sea of the Hongyanhe Nuclear Power Plant were investigated in autumn, 2017. The water ages were calculated by "Apparent Radium Age Model", which distribution was then used to assess the major direction of water transport in the study area. We also discussed the relationship between jellyfish abundance distribution and water transport direction. The results indicate that: (1) the activity ranges of ²²⁴Ra, ²²⁶Ra and ²²²Rn were 2.9−62.4 dpm/(100 L), 11.9−57.4 dpm/(100 L), and 0.1−1.3 dpm/L in the study area in autumn, respectively. (2) Based on the “Apparent Radium Age Model”, the so-calculated water ages were ranged from 0 to 16 d, with an average of (10.9±3.6) d. The major water transport direction was towards northeast with the velocity of 7.2 cm/s. (3) There was clear correlation between the distribution of jellyfish abundance and the major water transport direction. The higher jellyfish abundance was found in main water transport direction with older water ages.
- Hongyanhe,
- nuclear power plant,
- radium isotope,
- radon isotope,
- water age,
- jellyfish abundance

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References(25)

References

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