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Abstract
Chaun Bay, in the East Siberian Sea, supports a unique marine ecosystem atypical for the Siberian Arctic. This study uses shipboard measurements (October 2020) and land-fast ice observations (April 2023) to show that hydrothermal submarine groundwater discharge (SGD) sustains these warm-water communities. SGD delivers heat, salinity, nutrients, and trace elements, creating a water mass similar to productive North Pacific waters. The bay exhibits elevated chlorophyll-a, zooplankton, and epibenthos, including boreal species unusual for the Arctic.
Publisher
Communications Earth & Environment
Published On
Jul 22, 2024
Authors
Alexander N. Charkin, Ksenia N. Kosobokova, Elizaveta A. Ershova, Vitaly L. Syomin, Glafira D. Kolbasova, Pavel Yu. Semkin, Andrey E. Leusov, Oleg V. Dudarev, Timofey A. Gulenko, Elena I. Yaroshchuk, Anatoly M. Startsev, Pavel A. Fayman, Vladislav A. Krasikov, Sergey A. Zverev, Elena A. Bessonova, Alexander S. Ulyantsev, Evgeny V. Elovsky, Daria A. Yurikova, Kirill A. Kobyakov, Olga L. Zimina, Alexandra V. Gerasimova, Peter P. Tishchenko, Alexander A. Didov
Tags
Chaun Bay
marine ecosystem
submarine groundwater discharge
chlorophyll-a
boreal species
Siberian Arctic
zooplankton

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