Patterns of variability in the fatty acid and stable isotope profiles of ice algae, phytoplankton, and zooplankton during early spring in the Canadian High Arctic
Sea ice-associated primary producers are a major source of energy within Arctic marine ecosystems, particularly when pelagic primary growth is temporally and spatially limited. Using samples and data collected in spring 2011 and 2012, the variation in the fatty acid composition and stable isotopes o...
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ftyorkuniv:oai:yorkspace.library.yorku.ca:10315/31716 2023-05-15T14:28:50+02:00 Patterns of variability in the fatty acid and stable isotope profiles of ice algae, phytoplankton, and zooplankton during early spring in the Canadian High Arctic Duerksen, Steven William Thiemann, Gregory Michel, Christine Budge, Suzanne 2013-07 application/pdf http://hdl.handle.net/10315/31716 unknown http://hdl.handle.net/10315/31716 Author owns copyright, except where explicitly noted. Please contact the author directly with licensing requests. Ice algae Phytoplankton Zooplankton Fatty acid Stable isotopes Herbivores High Arctic Canada Electronic Thesis or Dissertation 2013 ftyorkuniv 2022-08-22T13:09:55Z Sea ice-associated primary producers are a major source of energy within Arctic marine ecosystems, particularly when pelagic primary growth is temporally and spatially limited. Using samples and data collected in spring 2011 and 2012, the variation in the fatty acid composition and stable isotopes of ice-based primary producers and primary consumers were investigated over several spatial scales in the Canadian Arctic Archipelago. Snow and ice thickness significantly affected ice algae fatty acid composition. Broad scale year-to-year variation in snow and ice conditions indirectly affected the fatty acid compositions, particularly the levels of polyunsaturated fatty acids, of a keystone zooplankton species. Environmental influence on fatty acid composition decreased as trophic level increased. Despite the presence of high quality pelagic phytoplankton under the sea ice, the data suggest herbivores rely mainly on ice algae. Thesis Arctic Archipelago Arctic Canadian Arctic Archipelago ice algae Phytoplankton Sea ice Zooplankton York University, Toronto: YorkSpace Arctic Canada Canadian Arctic Archipelago |
institution |
Open Polar |
collection |
York University, Toronto: YorkSpace |
op_collection_id |
ftyorkuniv |
language |
unknown |
topic |
Ice algae Phytoplankton Zooplankton Fatty acid Stable isotopes Herbivores High Arctic Canada |
spellingShingle |
Ice algae Phytoplankton Zooplankton Fatty acid Stable isotopes Herbivores High Arctic Canada Duerksen, Steven William Patterns of variability in the fatty acid and stable isotope profiles of ice algae, phytoplankton, and zooplankton during early spring in the Canadian High Arctic |
topic_facet |
Ice algae Phytoplankton Zooplankton Fatty acid Stable isotopes Herbivores High Arctic Canada |
description |
Sea ice-associated primary producers are a major source of energy within Arctic marine ecosystems, particularly when pelagic primary growth is temporally and spatially limited. Using samples and data collected in spring 2011 and 2012, the variation in the fatty acid composition and stable isotopes of ice-based primary producers and primary consumers were investigated over several spatial scales in the Canadian Arctic Archipelago. Snow and ice thickness significantly affected ice algae fatty acid composition. Broad scale year-to-year variation in snow and ice conditions indirectly affected the fatty acid compositions, particularly the levels of polyunsaturated fatty acids, of a keystone zooplankton species. Environmental influence on fatty acid composition decreased as trophic level increased. Despite the presence of high quality pelagic phytoplankton under the sea ice, the data suggest herbivores rely mainly on ice algae. |
author2 |
Thiemann, Gregory Michel, Christine Budge, Suzanne |
format |
Thesis |
author |
Duerksen, Steven William |
author_facet |
Duerksen, Steven William |
author_sort |
Duerksen, Steven William |
title |
Patterns of variability in the fatty acid and stable isotope profiles of ice algae, phytoplankton, and zooplankton during early spring in the Canadian High Arctic |
title_short |
Patterns of variability in the fatty acid and stable isotope profiles of ice algae, phytoplankton, and zooplankton during early spring in the Canadian High Arctic |
title_full |
Patterns of variability in the fatty acid and stable isotope profiles of ice algae, phytoplankton, and zooplankton during early spring in the Canadian High Arctic |
title_fullStr |
Patterns of variability in the fatty acid and stable isotope profiles of ice algae, phytoplankton, and zooplankton during early spring in the Canadian High Arctic |
title_full_unstemmed |
Patterns of variability in the fatty acid and stable isotope profiles of ice algae, phytoplankton, and zooplankton during early spring in the Canadian High Arctic |
title_sort |
patterns of variability in the fatty acid and stable isotope profiles of ice algae, phytoplankton, and zooplankton during early spring in the canadian high arctic |
publishDate |
2013 |
url |
http://hdl.handle.net/10315/31716 |
geographic |
Arctic Canada Canadian Arctic Archipelago |
geographic_facet |
Arctic Canada Canadian Arctic Archipelago |
genre |
Arctic Archipelago Arctic Canadian Arctic Archipelago ice algae Phytoplankton Sea ice Zooplankton |
genre_facet |
Arctic Archipelago Arctic Canadian Arctic Archipelago ice algae Phytoplankton Sea ice Zooplankton |
op_relation |
http://hdl.handle.net/10315/31716 |
op_rights |
Author owns copyright, except where explicitly noted. Please contact the author directly with licensing requests. |
_version_ |
1766302977135476736 |