Savvichev, Alexander S; Rusanov, Igor I; Yusupov, Sergey K; Pimenov, Nikolay V; Lein, Alla Yu (2005): Biogeochemistry (speciation and isotopes of S and C) in bottom sediments, water and bacterial mats from the White Sea [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.763625, Supplement to: Savvichev, AS et al. (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
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Abstract:
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 sulfide production in highly productive intertidal sediments was 1950-4300 mg S/m**2/day, methane production was 0.5-8.7 ml CH4/m**2/day, and intensity of methane oxidation was up to 17.5 ml CH4/m**2/day. Calculations performed with account for areas occupied by microlandscapes of increased productivity showed that diurnal production of H2S and CH4 per 1 km**2 of the intertidal zone (August) was estimated as 60.8-202 kg S/km**2/day and 192-300 l CH4/km**2/day, respectively.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 66.948238 * Median Longitude: 32.621222 * South-bound Latitude: 66.544900 * West-bound Longitude: 32.323900 * North-bound Latitude: 67.155600 * East-bound Longitude: 33.158200
Event(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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3 datasets
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Datasets listed in this publication series
- Savvichev, AS; Rusanov, II; Yusupov, SK et al. (2005): (Table 4) Sulfate reduction rate and isotope composition of sulfide- and sulfate sulfur in samples of bottom sediments and cyanobacterial mats from the White Sea. https://doi.org/10.1594/PANGAEA.763622
- Savvichev, AS; Rusanov, II; Yusupov, SK et al. (2005): (Table 5a) Concentration and isotopic composition of organic carbon in water from the White Sea. https://doi.org/10.1594/PANGAEA.763623
- Savvichev, AS; Rusanov, II; Yusupov, SK et al. (2005): (Table 5b) Contents and isotopic composition of organic carbon and hydrocarbonate ion in bottom sediments and cyanobacterial mats from the White Sea. https://doi.org/10.1594/PANGAEA.763624