Seasonal and spatial variation in abundance of the copepod Calanus sinicus: Effects of decreasing dissolved oxygen and small jellyfish bloom in northern Yellow Sea, China, nearshore waters
Sun, Xiaohong1; Sun, Xiyan2; Zhu, Lixin1; Li, Xiao1; Sun, Song3
发表期刊MARINE POLLUTION BULLETIN
ISSN0025-326X
2020-12-01
卷号161页码:8
关键词Calanus sinicusAbundanceRecruitmentDissolved oxygenJellyfish
DOI10.1016/j.marpolbul.2020.111653
通讯作者Sun, Song(sunsong@qdio.ac.cn)
英文摘要A hypoxia event occurred in the nearshore of the northern Yellow Sea in summer 2016, and a bloom of small jellyfish occurred in June of this year. As a key copepod species in the Yellow Sea, Calanus sinicus exhibits early recruitment mainly in this nearshore area. Therefore, this study assessed the effects of these two phenomena on C. sinicus especially on their early recruitment. Sampling in nearshore waters was performed every month from May to December, except for October 2016. The numerical abundance of eggs and nauplii (E + N), copepodites and adults (C + A) of C. sinicus was determined in relation to environmental factors. Results showed that dissolved oxygen (DO) concentrations decreased from June on, attaining a minimum in August, and showed a significant positive relationship with C. sinicus E + N abundance. This suggested that decreasing DO had potential negative effects on early recruitment of C. sinicus. The abundance of small jellyfish, dominated by Sugiura chengshanense (Hydromedusa), also showed a significant positive relationship with C. sinicus E + N abundance, indicating a potential predator-prey relationship between them. Spatial relationships were also examined between E + N abundance and DO concentration in July and with small jellyfish abundance in June. Both bottom DO (B-DO) and E + N abundance in inshore waters were significantly lower than those in offshore water in July, indicating a potential negative effect of low B-DO (<6 mg L-1) in nearshore water. Spatial variation of small jellyfish abundance showed no correlation with C. sinicus abundance in June, but the non-overlapping patchy distribution also suggested their potential predator-prey relationship. Together, both the seasonal and spatial results indicated that low DO and a small jellyfish bloom in nearshore waters had detrimental effects on early recruitment of C. sinicus. These negative effects thus have the potential to indirectly impact the trophodynamics of fishery resources in the northern Yellow Sea.
收录类别SCI
语种英语
关键词[WOS]LIFE-HISTORY STRATEGIES; AURELIA-AURITA; PREDATION IMPACT; SISHILI BAY; VERTICAL-DISTRIBUTION; POPULATION-DYNAMICS; REPRODUCTION RATES; COMMON JELLYFISH; FEEDING RATES; ZOOPLANKTON
研究领域[WOS]Environmental Sciences & Ecology; Marine & Freshwater Biology
WOS记录号WOS:000599843800004
引用统计被引频次：3[WOS][WOS记录][WOS相关记录]
文献类型期刊论文
条目标识符http://ir.yic.ac.cnhttp://ir.yic.ac.cn/handle/133337/27556
专题支撑部门_中国科学院牟平海岸带环境综合试验站

通讯作者Sun, Song作者单位1.Shandong Univ, Marine Coll, 180 Wenhuaxi Rd, Weihai 264209, Peoples R China
2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Oceanol, Beijing, Peoples R China

推荐引用方式
GB/T 7714Sun, Xiaohong,Sun, Xiyan,Zhu, Lixin,et al. Seasonal and spatial variation in abundance of the copepod Calanus sinicus: Effects of decreasing dissolved oxygen and small jellyfish bloom in northern Yellow Sea, China, nearshore waters[J]. MARINE POLLUTION BULLETIN,2020,161:8.
APASun, Xiaohong,Sun, Xiyan,Zhu, Lixin,Li, Xiao,&Sun, Song.(2020).Seasonal and spatial variation in abundance of the copepod Calanus sinicus: Effects of decreasing dissolved oxygen and small jellyfish bloom in northern Yellow Sea, China, nearshore waters.MARINE POLLUTION BULLETIN,161,8.
MLASun, Xiaohong,et al."Seasonal and spatial variation in abundance of the copepod Calanus sinicus: Effects of decreasing dissolved oxygen and small jellyfish bloom in northern Yellow Sea, China, nearshore waters".MARINE POLLUTION BULLETIN 161(2020):8.


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