Phytoplankton abundance measured on water samples from rivers of the Lena Delta in 2010
The Lena Delta in Northern Siberia is one of the largest river deltas in the world. During peak discharge, after the ice melt in spring, it delivers between 60-8000 m**3/s of water and sediment into the Arctic Ocean. The Lena Delta and the Laptev Sea coast also constitute a continuous permafrost reg...
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Format: | Dataset |
Language: | English |
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PANGAEA
2013
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.793226 https://doi.org/10.1594/PANGAEA.793226 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.793226 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
Acanthoceras Actinastrum cf. hantzschii Amphidinium cf. crassus Amphidinium cf. extensum Anabaena coiled irregular regular Anabaena straight Aphanizomenon spp. Aphanocapsa spp. Asterionella formosa Aulacoseira Aulacoseira cells other Aulacoseira granulata Aulacoseira granulata var. angustissima AWI_Coast AWI Arctic Land Expedition Bacteria star-shaped Bosmina spp. Ceratium cf. hirundinella cf. Cyclotella cf. Trichocerca spp. Chaetoceros spp. Chlorophyte Chlorophyte indeterminata Ciliates Closterium spp. Coastal Ecology @ AWI Coelastrum spp. Copepoda adult Coscinodiscus Cosmarium spp. Crucigenia fenestrata Crucigenia spp. Cryptophytes Crysophytes CTD/Rosette CTD-RO Cuspidothrix issatchenkoi Cyanobacteria Cyanophyte filaments |
spellingShingle |
Acanthoceras Actinastrum cf. hantzschii Amphidinium cf. crassus Amphidinium cf. extensum Anabaena coiled irregular regular Anabaena straight Aphanizomenon spp. Aphanocapsa spp. Asterionella formosa Aulacoseira Aulacoseira cells other Aulacoseira granulata Aulacoseira granulata var. angustissima AWI_Coast AWI Arctic Land Expedition Bacteria star-shaped Bosmina spp. Ceratium cf. hirundinella cf. Cyclotella cf. Trichocerca spp. Chaetoceros spp. Chlorophyte Chlorophyte indeterminata Ciliates Closterium spp. Coastal Ecology @ AWI Coelastrum spp. Copepoda adult Coscinodiscus Cosmarium spp. Crucigenia fenestrata Crucigenia spp. Cryptophytes Crysophytes CTD/Rosette CTD-RO Cuspidothrix issatchenkoi Cyanobacteria Cyanophyte filaments Kraberg, Alexandra Claudia Druzhkova, Elena I Heim, Birgit Löder, Martin G J Wiltshire, Karen Helen Phytoplankton abundance measured on water samples from rivers of the Lena Delta in 2010 |
topic_facet |
Acanthoceras Actinastrum cf. hantzschii Amphidinium cf. crassus Amphidinium cf. extensum Anabaena coiled irregular regular Anabaena straight Aphanizomenon spp. Aphanocapsa spp. Asterionella formosa Aulacoseira Aulacoseira cells other Aulacoseira granulata Aulacoseira granulata var. angustissima AWI_Coast AWI Arctic Land Expedition Bacteria star-shaped Bosmina spp. Ceratium cf. hirundinella cf. Cyclotella cf. Trichocerca spp. Chaetoceros spp. Chlorophyte Chlorophyte indeterminata Ciliates Closterium spp. Coastal Ecology @ AWI Coelastrum spp. Copepoda adult Coscinodiscus Cosmarium spp. Crucigenia fenestrata Crucigenia spp. Cryptophytes Crysophytes CTD/Rosette CTD-RO Cuspidothrix issatchenkoi Cyanobacteria Cyanophyte filaments |
description |
The Lena Delta in Northern Siberia is one of the largest river deltas in the world. During peak discharge, after the ice melt in spring, it delivers between 60-8000 m**3/s of water and sediment into the Arctic Ocean. The Lena Delta and the Laptev Sea coast also constitute a continuous permafrost region. Ongoing climate change, which is particularly pronounced in the Arctic, is leading to increased rates of permafrost thaw. This has already profoundly altered the discharge rates of the Lena River. But the chemistry of the river waters which are discharged into the coastal Laptev Sea have also been hypothesized to undergo considerable compositional changes, e.g. by increasing concentrations of inorganic nutrients such as dissolved organic carbon (DOC) and methane. These physical and chemical changes will also affect the composition of the phytoplankton communities. However, before potential consequences of climate change for coastal arctic phytoplankton communities can be judged, the inherent status of the diversity and food web interactions within the delta have to be established. In 2010, as part of the AWI Lena Delta programme, the phyto- and microzooplankton community in three river channels of the delta (Trofimov, Bykov and Olenek) as well as four coastal transects were investigated to capture the typical river phytoplankton communities and the transitional zone of brackish/marine conditions. Most CTD profiles from 23 coastal stations showed very strong stratification. The only exception to this was a small, shallow and mixed area running from the outflow of Bykov channel in a northerly direction parallel to the shore. Of the five stations in this area, three had a salinity of close to zero. Two further stations had salinities of around 2 and 5 throughout the water column. In the remaining transects, on the other hand, salinities varied between 5 and 30 with depth. Phytoplankton counts from the outflow from the Lena were dominated by diatoms (Aulacoseira species) cyanobacteria (Aphanizomenon, Pseudanabaena) ... |
format |
Dataset |
author |
Kraberg, Alexandra Claudia Druzhkova, Elena I Heim, Birgit Löder, Martin G J Wiltshire, Karen Helen |
author_facet |
Kraberg, Alexandra Claudia Druzhkova, Elena I Heim, Birgit Löder, Martin G J Wiltshire, Karen Helen |
author_sort |
Kraberg, Alexandra Claudia |
title |
Phytoplankton abundance measured on water samples from rivers of the Lena Delta in 2010 |
title_short |
Phytoplankton abundance measured on water samples from rivers of the Lena Delta in 2010 |
title_full |
Phytoplankton abundance measured on water samples from rivers of the Lena Delta in 2010 |
title_fullStr |
Phytoplankton abundance measured on water samples from rivers of the Lena Delta in 2010 |
title_full_unstemmed |
Phytoplankton abundance measured on water samples from rivers of the Lena Delta in 2010 |
title_sort |
phytoplankton abundance measured on water samples from rivers of the lena delta in 2010 |
publisher |
PANGAEA |
publishDate |
2013 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.793226 https://doi.org/10.1594/PANGAEA.793226 |
op_coverage |
MEDIAN LATITUDE: 72.128862 * MEDIAN LONGITUDE: 129.537332 * SOUTH-BOUND LATITUDE: 71.565600 * WEST-BOUND LONGITUDE: 125.290750 * NORTH-BOUND LATITUDE: 72.745800 * EAST-BOUND LONGITUDE: 132.422300 * DATE/TIME START: 2010-07-29T14:35:00 * DATE/TIME END: 2010-08-09T12:03:00 * MINIMUM DEPTH, water: 0.0 m * MAXIMUM DEPTH, water: 22.0 m |
long_lat |
ENVELOPE(155.258,155.258,50.158,50.158) ENVELOPE(125.290750,132.422300,72.745800,71.565600) |
geographic |
Arctic Arctic Ocean Bykov Laptev Sea |
geographic_facet |
Arctic Arctic Ocean Bykov Laptev Sea |
genre |
Arctic Arctic Ocean Climate change Ice laptev Laptev Sea lena delta lena river permafrost Phytoplankton Siberia |
genre_facet |
Arctic Arctic Ocean Climate change Ice laptev Laptev Sea lena delta lena river permafrost Phytoplankton Siberia |
op_source |
Supplement to: Kraberg, Alexandra Claudia; Druzhkova, Elena I; Heim, Birgit; Löder, Martin G J; Wiltshire, Karen Helen (2013): Phytoplankton community structure in the Lena Delta (Siberia, Russia) in relation to hydrography. Biogeosciences, 10(11), 7263-7277, https://doi.org/10.5194/bg-10-7263-2013 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.793226 https://doi.org/10.1594/PANGAEA.793226 |
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.793226 https://doi.org/10.5194/bg-10-7263-2013 |
_version_ |
1766329476456644608 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.793226 2023-05-15T14:57:23+02:00 Phytoplankton abundance measured on water samples from rivers of the Lena Delta in 2010 Kraberg, Alexandra Claudia Druzhkova, Elena I Heim, Birgit Löder, Martin G J Wiltshire, Karen Helen MEDIAN LATITUDE: 72.128862 * MEDIAN LONGITUDE: 129.537332 * SOUTH-BOUND LATITUDE: 71.565600 * WEST-BOUND LONGITUDE: 125.290750 * NORTH-BOUND LATITUDE: 72.745800 * EAST-BOUND LONGITUDE: 132.422300 * DATE/TIME START: 2010-07-29T14:35:00 * DATE/TIME END: 2010-08-09T12:03:00 * MINIMUM DEPTH, water: 0.0 m * MAXIMUM DEPTH, water: 22.0 m 2013-02-03 text/tab-separated-values, 8844 data points https://doi.pangaea.de/10.1594/PANGAEA.793226 https://doi.org/10.1594/PANGAEA.793226 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.793226 https://doi.org/10.1594/PANGAEA.793226 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Kraberg, Alexandra Claudia; Druzhkova, Elena I; Heim, Birgit; Löder, Martin G J; Wiltshire, Karen Helen (2013): Phytoplankton community structure in the Lena Delta (Siberia, Russia) in relation to hydrography. Biogeosciences, 10(11), 7263-7277, https://doi.org/10.5194/bg-10-7263-2013 Acanthoceras Actinastrum cf. hantzschii Amphidinium cf. crassus Amphidinium cf. extensum Anabaena coiled irregular regular Anabaena straight Aphanizomenon spp. Aphanocapsa spp. Asterionella formosa Aulacoseira Aulacoseira cells other Aulacoseira granulata Aulacoseira granulata var. angustissima AWI_Coast AWI Arctic Land Expedition Bacteria star-shaped Bosmina spp. Ceratium cf. hirundinella cf. Cyclotella cf. Trichocerca spp. Chaetoceros spp. Chlorophyte Chlorophyte indeterminata Ciliates Closterium spp. Coastal Ecology @ AWI Coelastrum spp. Copepoda adult Coscinodiscus Cosmarium spp. Crucigenia fenestrata Crucigenia spp. Cryptophytes Crysophytes CTD/Rosette CTD-RO Cuspidothrix issatchenkoi Cyanobacteria Cyanophyte filaments Dataset 2013 ftpangaea https://doi.org/10.1594/PANGAEA.793226 https://doi.org/10.5194/bg-10-7263-2013 2023-01-20T08:56:28Z The Lena Delta in Northern Siberia is one of the largest river deltas in the world. During peak discharge, after the ice melt in spring, it delivers between 60-8000 m**3/s of water and sediment into the Arctic Ocean. The Lena Delta and the Laptev Sea coast also constitute a continuous permafrost region. Ongoing climate change, which is particularly pronounced in the Arctic, is leading to increased rates of permafrost thaw. This has already profoundly altered the discharge rates of the Lena River. But the chemistry of the river waters which are discharged into the coastal Laptev Sea have also been hypothesized to undergo considerable compositional changes, e.g. by increasing concentrations of inorganic nutrients such as dissolved organic carbon (DOC) and methane. These physical and chemical changes will also affect the composition of the phytoplankton communities. However, before potential consequences of climate change for coastal arctic phytoplankton communities can be judged, the inherent status of the diversity and food web interactions within the delta have to be established. In 2010, as part of the AWI Lena Delta programme, the phyto- and microzooplankton community in three river channels of the delta (Trofimov, Bykov and Olenek) as well as four coastal transects were investigated to capture the typical river phytoplankton communities and the transitional zone of brackish/marine conditions. Most CTD profiles from 23 coastal stations showed very strong stratification. The only exception to this was a small, shallow and mixed area running from the outflow of Bykov channel in a northerly direction parallel to the shore. Of the five stations in this area, three had a salinity of close to zero. Two further stations had salinities of around 2 and 5 throughout the water column. In the remaining transects, on the other hand, salinities varied between 5 and 30 with depth. Phytoplankton counts from the outflow from the Lena were dominated by diatoms (Aulacoseira species) cyanobacteria (Aphanizomenon, Pseudanabaena) ... Dataset Arctic Arctic Ocean Climate change Ice laptev Laptev Sea lena delta lena river permafrost Phytoplankton Siberia PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Bykov ENVELOPE(155.258,155.258,50.158,50.158) Laptev Sea ENVELOPE(125.290750,132.422300,72.745800,71.565600) |