Table 1: Diatom distribution in surface sediments of the Kara Sea
Diatom assemblages in 62 surface sediment samples from the outer Ob and Yenisei estuaries and the adjacent inner Kara Sea shelf were examined in relation to environmental conditions. Concentrations of diatoms reflect the biological productivity of surface waters along with specific water mass proces...
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2003
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.804559 2023-05-15T14:27:18+02:00 Table 1: Diatom distribution in surface sediments of the Kara Sea Polyakova, Ye I MEDIAN LATITUDE: 73.690465 * MEDIAN LONGITUDE: 78.398696 * SOUTH-BOUND LATITUDE: 71.108433 * WEST-BOUND LONGITUDE: 72.662000 * NORTH-BOUND LATITUDE: 76.961783 * EAST-BOUND LONGITUDE: 85.763217 * DATE/TIME START: 1997-09-14T09:59:00 * DATE/TIME END: 2000-09-20T10:41:00 * MINIMUM DEPTH, sediment/rock: 0.0 m * MAXIMUM DEPTH, sediment/rock: 0.0 m 2003-12-21 text/tab-separated-values, 124 data points https://doi.pangaea.de/10.1594/PANGAEA.804559 https://doi.org/10.1594/PANGAEA.804559 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.804559 https://doi.org/10.1594/PANGAEA.804559 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Polyakova, Ye I (2003): Diatom assemblages in surface sediments of the Kara Sea (Siberian Arctic) and their relationship to oceanological conditions. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 375-399 Akademik Boris Petrov BP00 BP00-02 BP00-05 BP00-07 BP00-08 BP00-09 BP00-13 BP00-14 BP00-15 BP00-16 BP00-17 BP00-22 BP00-23 BP00-26 BP00-28 BP00-29 BP00-30 BP00-31 BP00-35 BP00-36 BP00-38 BP97 BP97-10 BP97-12 BP97-17 BP97-19 BP97-21 BP97-27 BP97-32 BP97-35 BP97-39 BP97-42 BP97-43 BP97-46 BP97-47 BP97-48 BP97-49 BP97-50 BP97-52 BP97-55 BP97-56 BP97-58 BP99 BP99-01 BP99-02 BP99-03 BP99-04 BP99-08 BP99-11 Dataset 2003 ftpangaea https://doi.org/10.1594/PANGAEA.804559 2023-01-20T09:00:05Z Diatom assemblages in 62 surface sediment samples from the outer Ob and Yenisei estuaries and the adjacent inner Kara Sea shelf were examined in relation to environmental conditions. Concentrations of diatoms reflect the biological productivity of surface waters along with specific water mass processes of diatom valve deposition in the zone of intermixing of riverine and marine waters. An inverse relationship between total concentration of diatom valves in sediments and surface water salinity is found. Extremely high abundances of diatom valves (up to 82.4 million valves/g sediment) are observed in the outer Ob and Yenisei estuaries (salinity < 5) and are related to a zone with rapid deposition of riverine organic matter. The overall distribution pattern of freshwater diatoms indicates the inflow of river water onto the shelf and follows the general pattern in surface water salinity. A linear regression between average summer surface water salinity and relative proportions of freshwater diatoms reveals a correlation coefficient of r = 0.86 for a salinity range of ~ 5 to 20. The distribution of sea-ice diatoms in the surface sediments generally reflects the sea-ice conditions during spring and summer time. Steep increases in their relative abundances (>10-20%) correspond to the mean interannual location of the winter polynya corroborating previously obtained results from the Laptev Sea. Dataset Arctic Kara Sea laptev Laptev Sea Sea ice PANGAEA - Data Publisher for Earth & Environmental Science Kara Sea Laptev Sea ENVELOPE(72.662000,85.763217,76.961783,71.108433) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Akademik Boris Petrov BP00 BP00-02 BP00-05 BP00-07 BP00-08 BP00-09 BP00-13 BP00-14 BP00-15 BP00-16 BP00-17 BP00-22 BP00-23 BP00-26 BP00-28 BP00-29 BP00-30 BP00-31 BP00-35 BP00-36 BP00-38 BP97 BP97-10 BP97-12 BP97-17 BP97-19 BP97-21 BP97-27 BP97-32 BP97-35 BP97-39 BP97-42 BP97-43 BP97-46 BP97-47 BP97-48 BP97-49 BP97-50 BP97-52 BP97-55 BP97-56 BP97-58 BP99 BP99-01 BP99-02 BP99-03 BP99-04 BP99-08 BP99-11 |
spellingShingle |
Akademik Boris Petrov BP00 BP00-02 BP00-05 BP00-07 BP00-08 BP00-09 BP00-13 BP00-14 BP00-15 BP00-16 BP00-17 BP00-22 BP00-23 BP00-26 BP00-28 BP00-29 BP00-30 BP00-31 BP00-35 BP00-36 BP00-38 BP97 BP97-10 BP97-12 BP97-17 BP97-19 BP97-21 BP97-27 BP97-32 BP97-35 BP97-39 BP97-42 BP97-43 BP97-46 BP97-47 BP97-48 BP97-49 BP97-50 BP97-52 BP97-55 BP97-56 BP97-58 BP99 BP99-01 BP99-02 BP99-03 BP99-04 BP99-08 BP99-11 Polyakova, Ye I Table 1: Diatom distribution in surface sediments of the Kara Sea |
topic_facet |
Akademik Boris Petrov BP00 BP00-02 BP00-05 BP00-07 BP00-08 BP00-09 BP00-13 BP00-14 BP00-15 BP00-16 BP00-17 BP00-22 BP00-23 BP00-26 BP00-28 BP00-29 BP00-30 BP00-31 BP00-35 BP00-36 BP00-38 BP97 BP97-10 BP97-12 BP97-17 BP97-19 BP97-21 BP97-27 BP97-32 BP97-35 BP97-39 BP97-42 BP97-43 BP97-46 BP97-47 BP97-48 BP97-49 BP97-50 BP97-52 BP97-55 BP97-56 BP97-58 BP99 BP99-01 BP99-02 BP99-03 BP99-04 BP99-08 BP99-11 |
description |
Diatom assemblages in 62 surface sediment samples from the outer Ob and Yenisei estuaries and the adjacent inner Kara Sea shelf were examined in relation to environmental conditions. Concentrations of diatoms reflect the biological productivity of surface waters along with specific water mass processes of diatom valve deposition in the zone of intermixing of riverine and marine waters. An inverse relationship between total concentration of diatom valves in sediments and surface water salinity is found. Extremely high abundances of diatom valves (up to 82.4 million valves/g sediment) are observed in the outer Ob and Yenisei estuaries (salinity < 5) and are related to a zone with rapid deposition of riverine organic matter. The overall distribution pattern of freshwater diatoms indicates the inflow of river water onto the shelf and follows the general pattern in surface water salinity. A linear regression between average summer surface water salinity and relative proportions of freshwater diatoms reveals a correlation coefficient of r = 0.86 for a salinity range of ~ 5 to 20. The distribution of sea-ice diatoms in the surface sediments generally reflects the sea-ice conditions during spring and summer time. Steep increases in their relative abundances (>10-20%) correspond to the mean interannual location of the winter polynya corroborating previously obtained results from the Laptev Sea. |
format |
Dataset |
author |
Polyakova, Ye I |
author_facet |
Polyakova, Ye I |
author_sort |
Polyakova, Ye I |
title |
Table 1: Diatom distribution in surface sediments of the Kara Sea |
title_short |
Table 1: Diatom distribution in surface sediments of the Kara Sea |
title_full |
Table 1: Diatom distribution in surface sediments of the Kara Sea |
title_fullStr |
Table 1: Diatom distribution in surface sediments of the Kara Sea |
title_full_unstemmed |
Table 1: Diatom distribution in surface sediments of the Kara Sea |
title_sort |
table 1: diatom distribution in surface sediments of the kara sea |
publisher |
PANGAEA |
publishDate |
2003 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.804559 https://doi.org/10.1594/PANGAEA.804559 |
op_coverage |
MEDIAN LATITUDE: 73.690465 * MEDIAN LONGITUDE: 78.398696 * SOUTH-BOUND LATITUDE: 71.108433 * WEST-BOUND LONGITUDE: 72.662000 * NORTH-BOUND LATITUDE: 76.961783 * EAST-BOUND LONGITUDE: 85.763217 * DATE/TIME START: 1997-09-14T09:59:00 * DATE/TIME END: 2000-09-20T10:41:00 * MINIMUM DEPTH, sediment/rock: 0.0 m * MAXIMUM DEPTH, sediment/rock: 0.0 m |
long_lat |
ENVELOPE(72.662000,85.763217,76.961783,71.108433) |
geographic |
Kara Sea Laptev Sea |
geographic_facet |
Kara Sea Laptev Sea |
genre |
Arctic Kara Sea laptev Laptev Sea Sea ice |
genre_facet |
Arctic Kara Sea laptev Laptev Sea Sea ice |
op_source |
Supplement to: Polyakova, Ye I (2003): Diatom assemblages in surface sediments of the Kara Sea (Siberian Arctic) and their relationship to oceanological conditions. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 375-399 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.804559 https://doi.org/10.1594/PANGAEA.804559 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.804559 |
_version_ |
1766300978617778176 |