Biogeochemistry (speciation and isotopes of S and C) in bottom sediments, water and bacterial mats from the White Sea ...

• Main Authors: Savvichev, Alexander S, Rusanov, Igor I, Yusupov, Sergey K, Pimenov, Nikolay V, Lein, Alla Yu
• Format: Article in Journal/Newspaper
• Language: English
• Published: PANGAEA 2005
• Subjects: Multiple investigations; Archive of Ocean Data ARCOD; dvina; White Sea
• Online Access: https://dx.doi.org/10.1594/pangaea.763625; https://doi.pangaea.de/10.1594/PANGAEA.763625

This publication presents results of microbiological and biogeochemical studies in the White Sea. Material was obtained during a series of expeditions in 1999-2002. The studies were carried out in the open part of the White Sea, in the Onega, Dvina and Kandalaksha Bays, as well as in the intertidal zone of the Kandalaksha Bay. Quantitative characteristics of activity of microbial processes in waters and bottom sediments of the White Sea were obtained. The total number of bacteria was equal to 150000-800000 cells/ml, and intensity of dark CO2 assimilation was equal to 0.9-17 µg C/l/day. Bacterial sulfate reduction was equal to 3-150 mg S/m**2/day, and methane formation and oxidation was equal to 13-6840 and 20-14650 µl CH4/m**2/day, respectively. Extremely high values of intensity of all principal microbial processes were found in intertidal sediments rich in organic matter: under decomposing macrophytes, in local pits at the lower intertidal boundary, and in the mouth of a freshwater brook. Average hydrogen ... : Supplement to: Savvichev, Alexander S; Rusanov, Igor I; Yusupov, Sergey K; Pimenov, Nikolay V; Lein, Alla Yu (2005): Microbial processes of the organic matter transformation in the White Sea. Translated from Okeanologiya, 2005, 45(5), 689-702, Oceanology, 45(5), 650-663 ...