Chlorophyll a concentration and zooplankton abundance and biomass below melting sea ice in the Amundsen Gulf

Early summer in the Arctic with extensive ice melt and break-up represents a dramatic change for sympagic-pelagic fauna below seasonal sea ice. As part of the International Polar Year-Circumpolar Flaw Lead system study (IPY-CFL), this investigation quantified zooplankton in the meltwater layer below...

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Main Authors: Hop, Haakon, Mundy, Christopher John, Gosselin, Michel, Rossnagel, Andrea L, Barber, David G
Format: Other/Unknown Material
Language:English
Published: PANGAEA 2011
Subjects:
IPY
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.811354
https://doi.org/10.1594/PANGAEA.811354
id ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.811354
record_format openpolar
spelling ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.811354 2024-09-15T17:38:53+00:00 Chlorophyll a concentration and zooplankton abundance and biomass below melting sea ice in the Amundsen Gulf Hop, Haakon Mundy, Christopher John Gosselin, Michel Rossnagel, Andrea L Barber, David G MEDIAN LATITUDE: 69.915000 * MEDIAN LONGITUDE: -124.828500 * SOUTH-BOUND LATITUDE: 69.780000 * WEST-BOUND LONGITUDE: -126.069000 * NORTH-BOUND LATITUDE: 70.050000 * EAST-BOUND LONGITUDE: -123.588000 * DATE/TIME START: 2008-06-08T00:00:00 * DATE/TIME END: 2008-06-21T00:00:00 2011 application/zip, 3 datasets https://doi.pangaea.de/10.1594/PANGAEA.811354 https://doi.org/10.1594/PANGAEA.811354 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.811354 https://doi.org/10.1594/PANGAEA.811354 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess Supplement to: Hop, Haakon; Mundy, Christopher John; Gosselin, Michel; Rossnagel, Andrea L; Barber, David G (2011): Zooplankton boom and ice amphipod bust below melting sea ice in the Amundsen Gulf, Arctic Canada. Polar Biology, 34(12), 1947-1958, https://doi.org/10.1007/s00300-011-0991-4 International Polar Year (2007-2008) IPY dataset publication series 2011 ftpangaea https://doi.org/10.1594/PANGAEA.81135410.1007/s00300-011-0991-4 2024-07-24T02:31:21Z Early summer in the Arctic with extensive ice melt and break-up represents a dramatic change for sympagic-pelagic fauna below seasonal sea ice. As part of the International Polar Year-Circumpolar Flaw Lead system study (IPY-CFL), this investigation quantified zooplankton in the meltwater layer below landfast ice and remaining ice fauna below melting ice during June (2008) in Franklin Bay and Darnley Bay, Amundsen Gulf, Canada. The ice was in a state of advanced melt, with fully developed melt ponds. Intense melting resulted in a 0.3- to 0.5-m-thick meltwater layer below the ice, with a strong halocline to the Arctic water below. Zooplankton under the ice, in and below the meltwater layer, was sampled by SCUBA divers. Dense concentrations (max. 1,400 ind./m**3) of Calanus glacialis were associated with the meltwater layer, with dominant copepodid stages CIV and CV and high abundance of nauplii. Less abundant species included Pseudocalanus spp., Oithona similis and C. hyperboreus. The copepods were likely feeding on phytoplankton (0.5-2.3 mg Chl-a/m**3) in the meltwater layer. Ice amphipods were present at low abundance (<10 ind./m**2) and wet biomass (<0.2 g/m**2). Onisimus glacialis and Apherusa glacialis made up 64 and 51% of the total ice faunal abundance in Darnley Bay and Franklin Bay, respectively. During early summer, the autochthonous ice fauna becomes gradually replaced by allochthonous zooplankton, with an abundance boom near the meltwater layer. The ice amphipod bust occurs during late stages of melting and break-up, when their sympagic habitat is diminished then lost. Other/Unknown Material Amundsen Gulf Arctic Calanus glacialis Darnley Bay Franklin Bay International Polar Year IPY Phytoplankton Polar Biology Sea ice Zooplankton Copepods PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-126.069000,-123.588000,70.050000,69.780000)
institution Open Polar
collection PANGAEA - Data Publisher for Earth & Environmental Science
op_collection_id ftpangaea
language English
topic International Polar Year (2007-2008)
IPY
spellingShingle International Polar Year (2007-2008)
IPY
Hop, Haakon
Mundy, Christopher John
Gosselin, Michel
Rossnagel, Andrea L
Barber, David G
Chlorophyll a concentration and zooplankton abundance and biomass below melting sea ice in the Amundsen Gulf
topic_facet International Polar Year (2007-2008)
IPY
description Early summer in the Arctic with extensive ice melt and break-up represents a dramatic change for sympagic-pelagic fauna below seasonal sea ice. As part of the International Polar Year-Circumpolar Flaw Lead system study (IPY-CFL), this investigation quantified zooplankton in the meltwater layer below landfast ice and remaining ice fauna below melting ice during June (2008) in Franklin Bay and Darnley Bay, Amundsen Gulf, Canada. The ice was in a state of advanced melt, with fully developed melt ponds. Intense melting resulted in a 0.3- to 0.5-m-thick meltwater layer below the ice, with a strong halocline to the Arctic water below. Zooplankton under the ice, in and below the meltwater layer, was sampled by SCUBA divers. Dense concentrations (max. 1,400 ind./m**3) of Calanus glacialis were associated with the meltwater layer, with dominant copepodid stages CIV and CV and high abundance of nauplii. Less abundant species included Pseudocalanus spp., Oithona similis and C. hyperboreus. The copepods were likely feeding on phytoplankton (0.5-2.3 mg Chl-a/m**3) in the meltwater layer. Ice amphipods were present at low abundance (<10 ind./m**2) and wet biomass (<0.2 g/m**2). Onisimus glacialis and Apherusa glacialis made up 64 and 51% of the total ice faunal abundance in Darnley Bay and Franklin Bay, respectively. During early summer, the autochthonous ice fauna becomes gradually replaced by allochthonous zooplankton, with an abundance boom near the meltwater layer. The ice amphipod bust occurs during late stages of melting and break-up, when their sympagic habitat is diminished then lost.
format Other/Unknown Material
author Hop, Haakon
Mundy, Christopher John
Gosselin, Michel
Rossnagel, Andrea L
Barber, David G
author_facet Hop, Haakon
Mundy, Christopher John
Gosselin, Michel
Rossnagel, Andrea L
Barber, David G
author_sort Hop, Haakon
title Chlorophyll a concentration and zooplankton abundance and biomass below melting sea ice in the Amundsen Gulf
title_short Chlorophyll a concentration and zooplankton abundance and biomass below melting sea ice in the Amundsen Gulf
title_full Chlorophyll a concentration and zooplankton abundance and biomass below melting sea ice in the Amundsen Gulf
title_fullStr Chlorophyll a concentration and zooplankton abundance and biomass below melting sea ice in the Amundsen Gulf
title_full_unstemmed Chlorophyll a concentration and zooplankton abundance and biomass below melting sea ice in the Amundsen Gulf
title_sort chlorophyll a concentration and zooplankton abundance and biomass below melting sea ice in the amundsen gulf
publisher PANGAEA
publishDate 2011
url https://doi.pangaea.de/10.1594/PANGAEA.811354
https://doi.org/10.1594/PANGAEA.811354
op_coverage MEDIAN LATITUDE: 69.915000 * MEDIAN LONGITUDE: -124.828500 * SOUTH-BOUND LATITUDE: 69.780000 * WEST-BOUND LONGITUDE: -126.069000 * NORTH-BOUND LATITUDE: 70.050000 * EAST-BOUND LONGITUDE: -123.588000 * DATE/TIME START: 2008-06-08T00:00:00 * DATE/TIME END: 2008-06-21T00:00:00
long_lat ENVELOPE(-126.069000,-123.588000,70.050000,69.780000)
genre Amundsen Gulf
Arctic
Calanus glacialis
Darnley Bay
Franklin Bay
International Polar Year
IPY
Phytoplankton
Polar Biology
Sea ice
Zooplankton
Copepods
genre_facet Amundsen Gulf
Arctic
Calanus glacialis
Darnley Bay
Franklin Bay
International Polar Year
IPY
Phytoplankton
Polar Biology
Sea ice
Zooplankton
Copepods
op_source Supplement to: Hop, Haakon; Mundy, Christopher John; Gosselin, Michel; Rossnagel, Andrea L; Barber, David G (2011): Zooplankton boom and ice amphipod bust below melting sea ice in the Amundsen Gulf, Arctic Canada. Polar Biology, 34(12), 1947-1958, https://doi.org/10.1007/s00300-011-0991-4
op_relation https://doi.pangaea.de/10.1594/PANGAEA.811354
https://doi.org/10.1594/PANGAEA.811354
op_rights CC-BY-3.0: Creative Commons Attribution 3.0 Unported
Access constraints: unrestricted
info:eu-repo/semantics/openAccess
op_doi https://doi.org/10.1594/PANGAEA.81135410.1007/s00300-011-0991-4
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