Pigments, phytoplankton and its production parameters in the Obskaya Guba and adjacent Kara Sea in the latest September 2007
Material was collected in the Ob River estuary and the adjacent shallow Kara Sea shelf between 71°14.0'N and 75°33.0'N at the end of September 2007. Latitudinal zonation in phytoplankton distribution was demonstrated; this zonation was determined by changes in salinity and concentration of...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.767374 2023-05-15T16:59:53+02:00 Pigments, phytoplankton and its production parameters in the Obskaya Guba and adjacent Kara Sea in the latest September 2007 Sukhanova, Irina N Flint, Mikhail V Mosharov, SA Sergeeva, V M MEDIAN LATITUDE: 73.630750 * MEDIAN LONGITUDE: 72.992514 * SOUTH-BOUND LATITUDE: 71.248000 * WEST-BOUND LONGITUDE: 72.513000 * NORTH-BOUND LATITUDE: 75.560000 * EAST-BOUND LONGITUDE: 73.955000 * DATE/TIME START: 2007-09-25T05:00:00 * DATE/TIME END: 2007-09-30T15:55:00 2011-08-24 application/zip, 4 datasets https://doi.pangaea.de/10.1594/PANGAEA.767374 https://doi.org/10.1594/PANGAEA.767374 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.767374 https://doi.org/10.1594/PANGAEA.767374 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Sukhanova, Irina N; Flint, Mikhail V; Mosharov, SA; Sergeeva, V M (2010): Structure of the phytoplankton communities and primary production in the Ob River estuary and over the adjacent Kara Sea shelf. Translated from Okeanologiya, 2010, 50(5), 785-800, Oceanology, 50(5), 743-758, https://doi.org/10.1134/S0001437010050115 Akademik Mstislav Keldysh AMK54 AMK54-4993 AMK54-4994 AMK54-4995 AMK54-4996 AMK54-4997 AMK54-4998 AMK54-4999 AMK54-5000 AMK54-5001 AMK54-5002 AMK54-5003 AMK54-5004 Archive of Ocean Data ARCOD Kara Sea MULT Multiple investigations Obskaya Guba Dataset 2011 ftpangaea https://doi.org/10.1594/PANGAEA.767374 https://doi.org/10.1134/S0001437010050115 2023-01-20T07:32:17Z Material was collected in the Ob River estuary and the adjacent shallow Kara Sea shelf between 71°14.0'N and 75°33.0'N at the end of September 2007. Latitudinal zonation in phytoplankton distribution was demonstrated; this zonation was determined by changes in salinity and concentration of nutrients. Characteristic of the phytocenosis in the southern desalinated zone composed of freshwater diatom and green algae species were high population density (1500000 cells/l), biomass (210 ?g C/l), chlorophyll concentration (4.5 ?g/l), and uniform distribution in the water column. High primary production (~40 ?g C/l/day) was recorded in the upper 1.5 m layer. The estuarine frontal zone located to the north had a halocline at depth 3-5 m. Freshwater species with low abundance (250000 cells/l), biomass (24 ?g C/l), and chlorophyll concentration (1.5 ?g/l) dominated above the halocline. Marine diatom algae, dinoflagellates, and autotrophic flagellates formed a considerable part of the phytocenosis below the halocline; community characteristics were two-fold lower as compared with the upper layer. Maximal values of primary production (~10 ?g C/l/day) were recorded in the upper 1.5 m layer. The phytocenosis in the seaward zone was formed by marine alga species and was considerably poorer as compared with the frontal zone. Assimilation rates of carbon per chlorophyll a at the end of the vegetation season within the studied area were low, average 0.4-1.0 ?g C/?g Chl/hour in the upper layer and 0.03-0.1 ?g C/?g Chl/hour below the pycnocline. Dataset Kara Sea ob river Obskaya Guba PANGAEA - Data Publisher for Earth & Environmental Science Kara Sea Obskaya Guba ENVELOPE(73.000,73.000,69.000,69.000) ENVELOPE(72.513000,73.955000,75.560000,71.248000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Akademik Mstislav Keldysh AMK54 AMK54-4993 AMK54-4994 AMK54-4995 AMK54-4996 AMK54-4997 AMK54-4998 AMK54-4999 AMK54-5000 AMK54-5001 AMK54-5002 AMK54-5003 AMK54-5004 Archive of Ocean Data ARCOD Kara Sea MULT Multiple investigations Obskaya Guba |
spellingShingle |
Akademik Mstislav Keldysh AMK54 AMK54-4993 AMK54-4994 AMK54-4995 AMK54-4996 AMK54-4997 AMK54-4998 AMK54-4999 AMK54-5000 AMK54-5001 AMK54-5002 AMK54-5003 AMK54-5004 Archive of Ocean Data ARCOD Kara Sea MULT Multiple investigations Obskaya Guba Sukhanova, Irina N Flint, Mikhail V Mosharov, SA Sergeeva, V M Pigments, phytoplankton and its production parameters in the Obskaya Guba and adjacent Kara Sea in the latest September 2007 |
topic_facet |
Akademik Mstislav Keldysh AMK54 AMK54-4993 AMK54-4994 AMK54-4995 AMK54-4996 AMK54-4997 AMK54-4998 AMK54-4999 AMK54-5000 AMK54-5001 AMK54-5002 AMK54-5003 AMK54-5004 Archive of Ocean Data ARCOD Kara Sea MULT Multiple investigations Obskaya Guba |
description |
Material was collected in the Ob River estuary and the adjacent shallow Kara Sea shelf between 71°14.0'N and 75°33.0'N at the end of September 2007. Latitudinal zonation in phytoplankton distribution was demonstrated; this zonation was determined by changes in salinity and concentration of nutrients. Characteristic of the phytocenosis in the southern desalinated zone composed of freshwater diatom and green algae species were high population density (1500000 cells/l), biomass (210 ?g C/l), chlorophyll concentration (4.5 ?g/l), and uniform distribution in the water column. High primary production (~40 ?g C/l/day) was recorded in the upper 1.5 m layer. The estuarine frontal zone located to the north had a halocline at depth 3-5 m. Freshwater species with low abundance (250000 cells/l), biomass (24 ?g C/l), and chlorophyll concentration (1.5 ?g/l) dominated above the halocline. Marine diatom algae, dinoflagellates, and autotrophic flagellates formed a considerable part of the phytocenosis below the halocline; community characteristics were two-fold lower as compared with the upper layer. Maximal values of primary production (~10 ?g C/l/day) were recorded in the upper 1.5 m layer. The phytocenosis in the seaward zone was formed by marine alga species and was considerably poorer as compared with the frontal zone. Assimilation rates of carbon per chlorophyll a at the end of the vegetation season within the studied area were low, average 0.4-1.0 ?g C/?g Chl/hour in the upper layer and 0.03-0.1 ?g C/?g Chl/hour below the pycnocline. |
format |
Dataset |
author |
Sukhanova, Irina N Flint, Mikhail V Mosharov, SA Sergeeva, V M |
author_facet |
Sukhanova, Irina N Flint, Mikhail V Mosharov, SA Sergeeva, V M |
author_sort |
Sukhanova, Irina N |
title |
Pigments, phytoplankton and its production parameters in the Obskaya Guba and adjacent Kara Sea in the latest September 2007 |
title_short |
Pigments, phytoplankton and its production parameters in the Obskaya Guba and adjacent Kara Sea in the latest September 2007 |
title_full |
Pigments, phytoplankton and its production parameters in the Obskaya Guba and adjacent Kara Sea in the latest September 2007 |
title_fullStr |
Pigments, phytoplankton and its production parameters in the Obskaya Guba and adjacent Kara Sea in the latest September 2007 |
title_full_unstemmed |
Pigments, phytoplankton and its production parameters in the Obskaya Guba and adjacent Kara Sea in the latest September 2007 |
title_sort |
pigments, phytoplankton and its production parameters in the obskaya guba and adjacent kara sea in the latest september 2007 |
publisher |
PANGAEA |
publishDate |
2011 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.767374 https://doi.org/10.1594/PANGAEA.767374 |
op_coverage |
MEDIAN LATITUDE: 73.630750 * MEDIAN LONGITUDE: 72.992514 * SOUTH-BOUND LATITUDE: 71.248000 * WEST-BOUND LONGITUDE: 72.513000 * NORTH-BOUND LATITUDE: 75.560000 * EAST-BOUND LONGITUDE: 73.955000 * DATE/TIME START: 2007-09-25T05:00:00 * DATE/TIME END: 2007-09-30T15:55:00 |
long_lat |
ENVELOPE(73.000,73.000,69.000,69.000) ENVELOPE(72.513000,73.955000,75.560000,71.248000) |
geographic |
Kara Sea Obskaya Guba |
geographic_facet |
Kara Sea Obskaya Guba |
genre |
Kara Sea ob river Obskaya Guba |
genre_facet |
Kara Sea ob river Obskaya Guba |
op_source |
Supplement to: Sukhanova, Irina N; Flint, Mikhail V; Mosharov, SA; Sergeeva, V M (2010): Structure of the phytoplankton communities and primary production in the Ob River estuary and over the adjacent Kara Sea shelf. Translated from Okeanologiya, 2010, 50(5), 785-800, Oceanology, 50(5), 743-758, https://doi.org/10.1134/S0001437010050115 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.767374 https://doi.org/10.1594/PANGAEA.767374 |
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.767374 https://doi.org/10.1134/S0001437010050115 |
_version_ |
1766052438742138880 |