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The Finding of Pogonophorans (Annelida, Siboglinidae) in the St. Anna Trough (Kara Sea) in an Area of Gas Hydrate Dissociation. | LitMetric
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The Finding of Pogonophorans (Annelida, Siboglinidae) in the St. Anna Trough (Kara Sea) in an Area of Gas Hydrate Dissociation.

N N Rimskaya-Korsakova N P Karaseva A A Osadchiev I P Semiletov M M Gantsevich D A Yurikova V V Malakhov

Dokl Biol Sci

Moscow State University, Moscow, Russia.

Published: February 2023

Representatives of pogonophorans (Annelida, Siboglinidae), whose vital activity is provided by symbiotic chemoautotrophic bacteria that oxidize methane and hydrogen sulfide, were found in the St. Anna Trough at depths of 539 and 437 m. The finding of pogonophorans suggests high concentrations of methane, which might result from dissociation of bottom gas hydrates under the influence of the influx of warm Atlantic water into the Kara Sea along the St. Anna Trough.

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http://dx.doi.org/10.1134/S001249662270020XDOI Listing

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