

FOLLOWUS
1.Marine College, Shandong University, Weihai 264209, China
2.Weihai Marine and Fishery Monitoring and Hazard Mitigation Center, Weihai 264209, China
3.Tianjin Marine Environmental Monitoring Central Station, Tianjin 300457, China
sunxiaohong@sdu.edu.cn
Received:23 December 2023,
Published:01 July 2025
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SUN Deyue,GU Hongliang,SUN Xiaohong,et al.Population dynamics of a northward invasive ctenophore, Pleurobrachia globosa Moser, 1903 in the Bohai Bay, China[J].Journal of Oceanology and Limnology,2025,43(04):1243-1254.
SUN Deyue,GU Hongliang,SUN Xiaohong,et al.Population dynamics of a northward invasive ctenophore, Pleurobrachia globosa Moser, 1903 in the Bohai Bay, China[J].Journal of Oceanology and Limnology,2025,43(04):1243-1254. DOI: 10.1007/s00343-024-3283-x.
Ctenophore
Pleurobrachia
globosa
(
P
.
globosa
) invades even the northernmost Bohai Sea from the south of China. Three years (2019–2021) of surveys were conducted in the Bohai Bay (BoB) of the Bohai Sea to examine its population dynamics and potential impact on nuclear power plants. Results show that
P
.
globosa
mainly occurred from July to October each year
reaching the maximum abundance in August/September and even bloomed
in August 2020. Correlations with environmental factors indicate this species has strong tolerance to acidification and hypoxia
and it has potentially indirect feeding relationship with phytoplankton. Seven stages in three groups were illustrated in life hist
ory of
P
.
globosa
. Two entire generations were detected in August
confirming its 2-week generation time. Spawning time started earlier in the south than in the north of BoB. The spatiotemporal variation and life cycle of
P
.
globosa
in BoB are useful for further study on the invasion
bloom
aggregation
and regeneration of
P
.
globosa
.
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