气候变化领域集成服务门户(CCPortal): The Influence of a Deep-Water Intrusion on the Distribution of Chrysaora melanaster in the Southeastern Bering Sea

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DOI	10.1029/2020JC016867
	The Influence of a Deep-Water Intrusion on the Distribution of Chrysaora melanaster in the Southeastern Bering Sea
	Huo Y.; Decker M.B.; Wang L.; Zhao J.; Lemoine H.; Lankowicz K.; Bi H.
发表日期	2021
ISSN	21699275
卷号	126 期号:6
英文摘要	Scyphozoan jellyfish are conspicuous components of marine ecosystems, which during a bloom, can impact food web structure and economically important fisheries. Jellyfish biomass in the southeastern Bering Sea (SEBS) is primarily composed of Chrysaora melanaster and has varied widely over the past four decades, yet the underlying causes of these biomass fluctuations remain unclear. The present study investigated the spatial and seasonal dynamics of C. melanaster along the Alaska Peninsula in the SEBS using an adaptive resolution imaging sonar system and nets in June–July and September 2018. The abundance of C. melanaster was high in coastal waters near the Alaska Peninsula, with peak densities occurring east of Unimak Island in both sampling periods. The current pattern revealed by an acoustic Doppler current profiler showed that cold, deep water from Bering Canyon flowed onto the shelf east of Unimak Pass. Differences in the strength of this cross-isobath, deep-water intrusion were observed during the two sampling periods. This flow may have influenced the distribution of C. melanaster by constraining the mixed coastal water near of Unimak Island in June-July and by transporting medusae westward, into deeper water in September, after the deep-water intrusion weakened. The present study provides a new mechanistic understanding of how regional-scale ocean variability in the SEBS affects C. melanaster distribution. © 2021. The Authors.
英文关键词	adaptive resolution imaging sonar (ARIS); circulation; inner front; jellyfish blooms; southeastern Bering Sea; spatial distribution; zooplankton
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186272
作者单位	Chesapeake Biological Laboratory, University of Maryland Center for Environmental Science, Solomons, MD, United States; Department of Ecology & Evolutionary Biology, Yale University, New Haven, CT, United States; Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, China; Horn Point Laboratory, University of Maryland Center for Environmental Science, Cambridge, MD, United States; Department of Geography, Florida State University, Tallahassee, FL, United States
推荐引用方式 GB/T 7714	Huo Y.,Decker M.B.,Wang L.,et al. The Influence of a Deep-Water Intrusion on the Distribution of Chrysaora melanaster in the Southeastern Bering Sea[J],2021,126(6).
APA	Huo Y..,Decker M.B..,Wang L..,Zhao J..,Lemoine H..,...&Bi H..(2021).The Influence of a Deep-Water Intrusion on the Distribution of Chrysaora melanaster in the Southeastern Bering Sea.Journal of Geophysical Research: Oceans,126(6).
MLA	Huo Y.,et al."The Influence of a Deep-Water Intrusion on the Distribution of Chrysaora melanaster in the Southeastern Bering Sea".Journal of Geophysical Research: Oceans 126.6(2021).