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| Main Authors: | , , , , , , , |
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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2007
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| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.785894 |
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| _version_ | 1867168560965484544 |
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| author | Lein, Alla Yu Savvichev, Alexander S Rusanov, Igor I Pavlova, Galina A Belyaev, Nikolay A Crane, Kathleen Pimenov, Nikolay V Ivanov, Mikhail V |
| author_facet | Lein, Alla Yu Savvichev, Alexander S Rusanov, Igor I Pavlova, Galina A Belyaev, Nikolay A Crane, Kathleen Pimenov, Nikolay V Ivanov, Mikhail V |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Study of biogeochemical processes in waters and sediments of the Chukchi Sea in August 2004 revealed atypical maxima of biogenic element (N, P, and Si) concentrations and rate of microbial sulfate reduction in the surface layer (0-3 cm) of marine sediments. The C/N/P ratio in organic matter (OM) of this layer does not fit the Redfield-Richards stoichiometric model. Specific features of biogeochemical processes in the sea are likely related to the complex dynamics of water, high primary produc¬tivity (110-1400 mg C/m**2/day), low depth of the basin (<50 m for 60% of the water area), reduced food chain due to low population of zooplankton, high density of zoobenthos (up to 4230 g/m**2), and high activity of microbial processes. Drastic decrease in concentrations of biogenic elements, iodine, total alkalinity, and population of microorganisms beneath the 0-3 cm layer testify to large-scale OM decay at the water-seafloor barrier. Our original experimental data support high annual rate of OM mineralization at the bottom of the Chukchi Sea. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_785894 |
| institution | PANGAEA |
| language | en |
| publishDate | 2007 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Biogeochemical parameters and processes in waters and bottom sediments of the Chukchi Sea Lein, Alla Yu Savvichev, Alexander S Rusanov, Igor I Pavlova, Galina A Belyaev, Nikolay A Crane, Kathleen Pimenov, Nikolay V Ivanov, Mikhail V Archive of Ocean Data; ARCOD Study of biogeochemical processes in waters and sediments of the Chukchi Sea in August 2004 revealed atypical maxima of biogenic element (N, P, and Si) concentrations and rate of microbial sulfate reduction in the surface layer (0-3 cm) of marine sediments. The C/N/P ratio in organic matter (OM) of this layer does not fit the Redfield-Richards stoichiometric model. Specific features of biogeochemical processes in the sea are likely related to the complex dynamics of water, high primary produc¬tivity (110-1400 mg C/m**2/day), low depth of the basin (<50 m for 60% of the water area), reduced food chain due to low population of zooplankton, high density of zoobenthos (up to 4230 g/m**2), and high activity of microbial processes. Drastic decrease in concentrations of biogenic elements, iodine, total alkalinity, and population of microorganisms beneath the 0-3 cm layer testify to large-scale OM decay at the water-seafloor barrier. Our original experimental data support high annual rate of OM mineralization at the bottom of the Chukchi Sea. |
| title | Biogeochemical parameters and processes in waters and bottom sediments of the Chukchi Sea |
| topic | Archive of Ocean Data; ARCOD |
| url | https://doi.org/10.1594/PANGAEA.785894 |