干旱区生态环境知识资源中心(Arid): A unique warm-water oasis in the Siberian Arctic's Chaun Bay sustained by hydrothermal groundwater discharge

Arid

DOI	10.1038/s43247-024-01529-x
	A unique warm-water oasis in the Siberian Arctic's Chaun Bay sustained by hydrothermal groundwater discharge
	Charkin, Alexander N.; Kosobokova, Ksenia N.; Ershova, Elizaveta A.; Syomin, Vitaly L.; Kolbasova, Glafira D.; Semkin, Pavel Yu.; Leusov, Andrey E.; Dudarev, Oleg V.; Gulenko, Timofey A.; Yaroshchuk, Elena I.; Startsev, Anatoly M.; Fayman, Pavel A.; Krasikov, Vladislav A.; Zverev, Sergey A.; Bessonova, Elena A.; Ulyantsev, Alexander S.; Elovsky, Evgeny V.; Yurikova, Daria A.; Kobyakov, Kirill A.; Zimina, Olga L.; Gerasimova, Alexandra V.; Tishchenko, Peter P.; Didov, Alexander A.
通讯作者	Charkin, AN
来源期刊	COMMUNICATIONS EARTH & ENVIRONMENT
EISSN	2662-4435
出版年	2024
卷号	5 期号:1
英文摘要	Chaun Bay, located on the fringe of the East Siberian Sea, has been described since the mid-20th century to support a unique marine ecosystem that is atypical for the local Siberian Arctic. Here we use ship-board physical, biogeochemical and geological measurements taken in October 2020, along with hydrographic observations taken from land-fast ice in April 2023, to demonstrate that these warm-water biological communities are supported by hydrothermal submarine groundwater discharge that delivers heat, salinity, nutrients, and trace elements to the bay. We identify a cyclonic eddy that mixes the warm nutrient-rich groundwater with oxygen-rich surface water, resulting in a water mass within Chaun Bay that has similar physical and chemical properties to the highly productive waters of the North Pacific and Southern Chukchi Sea. The bay showed elevated concentrations of chlorophyll-a and zooplankton, and the abundance and species diversity of epibenthos significantly exceeded values observed elsewhere in the East Siberian Sea. The benthic communities contained a number of boreal species that are not typically found in the Arctic Ocean. We also observed Thysanoessa krill populations, a pelagic species generally considered an expatriate in Arctic waters. Submarine groundwater discharge creates the unique ecosystem of warm-water marine biological communities that has been observed on the Siberian Arctic Shelf, according to analysis of a range of in situ measurements in 2020 and 2023.
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001274424400003
WOS关键词	MESOZOOPLANKTON COMMUNITIES ; MYTILUS-EDULIS ; CARBONIC-ACID ; CHUKCHI SEA ; RA-223 ; SEAWATER ; FLUXES ; SHELF ; DISSOCIATION ; CONSTANTS
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/403231
推荐引用方式 GB/T 7714	Charkin, Alexander N.,Kosobokova, Ksenia N.,Ershova, Elizaveta A.,et al. A unique warm-water oasis in the Siberian Arctic's Chaun Bay sustained by hydrothermal groundwater discharge[J],2024,5(1).
APA	Charkin, Alexander N..,Kosobokova, Ksenia N..,Ershova, Elizaveta A..,Syomin, Vitaly L..,Kolbasova, Glafira D..,...&Didov, Alexander A..(2024).A unique warm-water oasis in the Siberian Arctic's Chaun Bay sustained by hydrothermal groundwater discharge.COMMUNICATIONS EARTH & ENVIRONMENT,5(1).
MLA	Charkin, Alexander N.,et al."A unique warm-water oasis in the Siberian Arctic's Chaun Bay sustained by hydrothermal groundwater discharge".COMMUNICATIONS EARTH & ENVIRONMENT 5.1(2024).