Biogeochemistry of the Kem' River estuary, White Sea (Russia)
International audience The biogeochemistry of the river-sea interface was studied in the Kem' River (the largest river flowing to the White Sea from Karelian coast) estuary and adjacent area of the White Sea onboard the RV "Ekolog" in summer 2001, 2002 and 2003. The study area can be...
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ftccsdartic:oai:HAL:hal-00304805v1 2024-02-11T10:05:26+01:00 Biogeochemistry of the Kem' River estuary, White Sea (Russia) Shevchenko, V. R. Dolotov, Y. S. Filatov, N. N. Alexeeva, T. N. Filippov, A. S. Nöthig, E.-M. Novigatsky, A. N. Pautova, L. A. Platonov, A. V. Politova, N. V. Rat'Kova, T. N. Stein, R. P.P. Shirshov Institute of Oceanology (SIO) Russian Academy of Sciences Moscow (RAS) Water Problems Institute of the Russian Academy of Sciences Northern Water Problems Ins. KRC RAS Prospekt Alexandra Nevskogo Department of Bentho-pelagic processes Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association-Helmholtz-Gemeinschaft = Helmholtz Association 2005-06-14 https://hal.science/hal-00304805 https://hal.science/hal-00304805/document https://hal.science/hal-00304805/file/hess-9-57-2005.pdf en eng HAL CCSD European Geosciences Union hal-00304805 https://hal.science/hal-00304805 https://hal.science/hal-00304805/document https://hal.science/hal-00304805/file/hess-9-57-2005.pdf info:eu-repo/semantics/OpenAccess ISSN: 1812-2108 EISSN: 1812-2116 Hydrology and Earth System Sciences Discussions https://hal.science/hal-00304805 Hydrology and Earth System Sciences Discussions, 2005, 9 (1/2), pp.57-66 [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/article Journal articles 2005 ftccsdartic 2024-01-21T00:55:55Z International audience The biogeochemistry of the river-sea interface was studied in the Kem' River (the largest river flowing to the White Sea from Karelian coast) estuary and adjacent area of the White Sea onboard the RV "Ekolog" in summer 2001, 2002 and 2003. The study area can be divided into 3 zones: I - the estuary itself, with water depth from 1 to 5m and low salinity in the surface layer (salinity is lower than 0.2psu in the Kem' River and varies from 15 to 20psu in outer part of this zone); II - the intermediate zone with depths from 5 to 10m and salinity at the surface from 16 to 22psu; III - the marine zone with depths from 10 to 29 m and salinity 21-24.5psu. Highest concentrations of the suspended particulate matter (SPM) were registered in the Kem' mouth (5-7mg/l). They sharply decreased to values <1mg/l towards the sea. At beginning of July 2001, particulate organic carbon (POC) concentration in the river mouth was 404µg/l and POC content in total SPM was 5.64%. In the marine part of the studied area the POC concentration varied from 132 to 274µg/l and the POC contents in suspended matter increased to 19-52.6%. These studies show, that the majority of riverborne suspended matter in the Kem' estuary deposits near the river mouth within the 20psu isohaline, where sedimentation of the suspended matter takes place. The role of fresh-water phytoplankton species decreases and the role of marine species increases from the river to sea and the percentage of green algae decreases and the role of diatoms increases. The organic carbon (C org ) to nitrogen (N) ratio (C org /N) in both suspended matter and bottom sediments decreases from the river to the marine part of the mixing zone (from 8.5 to 6.1 in the suspended matter and from 14.6 to 7.5 in the bottom sediments), demonstrating that content of terrestrial-derived organic matter decreases and content of marine organic matter increases from the river mouth to the sea. The Kem' estuary exhibits a similar character of biogeochemial processes as in the ... Article in Journal/Newspaper karelia* karelian White Sea Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) White Sea |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Shevchenko, V. R. Dolotov, Y. S. Filatov, N. N. Alexeeva, T. N. Filippov, A. S. Nöthig, E.-M. Novigatsky, A. N. Pautova, L. A. Platonov, A. V. Politova, N. V. Rat'Kova, T. N. Stein, R. Biogeochemistry of the Kem' River estuary, White Sea (Russia) |
topic_facet |
[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDU.OCEAN]Sciences of the Universe [physics]/Ocean Atmosphere [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
International audience The biogeochemistry of the river-sea interface was studied in the Kem' River (the largest river flowing to the White Sea from Karelian coast) estuary and adjacent area of the White Sea onboard the RV "Ekolog" in summer 2001, 2002 and 2003. The study area can be divided into 3 zones: I - the estuary itself, with water depth from 1 to 5m and low salinity in the surface layer (salinity is lower than 0.2psu in the Kem' River and varies from 15 to 20psu in outer part of this zone); II - the intermediate zone with depths from 5 to 10m and salinity at the surface from 16 to 22psu; III - the marine zone with depths from 10 to 29 m and salinity 21-24.5psu. Highest concentrations of the suspended particulate matter (SPM) were registered in the Kem' mouth (5-7mg/l). They sharply decreased to values <1mg/l towards the sea. At beginning of July 2001, particulate organic carbon (POC) concentration in the river mouth was 404µg/l and POC content in total SPM was 5.64%. In the marine part of the studied area the POC concentration varied from 132 to 274µg/l and the POC contents in suspended matter increased to 19-52.6%. These studies show, that the majority of riverborne suspended matter in the Kem' estuary deposits near the river mouth within the 20psu isohaline, where sedimentation of the suspended matter takes place. The role of fresh-water phytoplankton species decreases and the role of marine species increases from the river to sea and the percentage of green algae decreases and the role of diatoms increases. The organic carbon (C org ) to nitrogen (N) ratio (C org /N) in both suspended matter and bottom sediments decreases from the river to the marine part of the mixing zone (from 8.5 to 6.1 in the suspended matter and from 14.6 to 7.5 in the bottom sediments), demonstrating that content of terrestrial-derived organic matter decreases and content of marine organic matter increases from the river mouth to the sea. The Kem' estuary exhibits a similar character of biogeochemial processes as in the ... |
author2 |
P.P. Shirshov Institute of Oceanology (SIO) Russian Academy of Sciences Moscow (RAS) Water Problems Institute of the Russian Academy of Sciences Northern Water Problems Ins. KRC RAS Prospekt Alexandra Nevskogo Department of Bentho-pelagic processes Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association-Helmholtz-Gemeinschaft = Helmholtz Association |
format |
Article in Journal/Newspaper |
author |
Shevchenko, V. R. Dolotov, Y. S. Filatov, N. N. Alexeeva, T. N. Filippov, A. S. Nöthig, E.-M. Novigatsky, A. N. Pautova, L. A. Platonov, A. V. Politova, N. V. Rat'Kova, T. N. Stein, R. |
author_facet |
Shevchenko, V. R. Dolotov, Y. S. Filatov, N. N. Alexeeva, T. N. Filippov, A. S. Nöthig, E.-M. Novigatsky, A. N. Pautova, L. A. Platonov, A. V. Politova, N. V. Rat'Kova, T. N. Stein, R. |
author_sort |
Shevchenko, V. R. |
title |
Biogeochemistry of the Kem' River estuary, White Sea (Russia) |
title_short |
Biogeochemistry of the Kem' River estuary, White Sea (Russia) |
title_full |
Biogeochemistry of the Kem' River estuary, White Sea (Russia) |
title_fullStr |
Biogeochemistry of the Kem' River estuary, White Sea (Russia) |
title_full_unstemmed |
Biogeochemistry of the Kem' River estuary, White Sea (Russia) |
title_sort |
biogeochemistry of the kem' river estuary, white sea (russia) |
publisher |
HAL CCSD |
publishDate |
2005 |
url |
https://hal.science/hal-00304805 https://hal.science/hal-00304805/document https://hal.science/hal-00304805/file/hess-9-57-2005.pdf |
geographic |
White Sea |
geographic_facet |
White Sea |
genre |
karelia* karelian White Sea |
genre_facet |
karelia* karelian White Sea |
op_source |
ISSN: 1812-2108 EISSN: 1812-2116 Hydrology and Earth System Sciences Discussions https://hal.science/hal-00304805 Hydrology and Earth System Sciences Discussions, 2005, 9 (1/2), pp.57-66 |
op_relation |
hal-00304805 https://hal.science/hal-00304805 https://hal.science/hal-00304805/document https://hal.science/hal-00304805/file/hess-9-57-2005.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1790602468580655104 |