Nutrient limitation of phytoplankton growth in Arctic lakes of the lower Mackenzie River Basin, northern Canada
Water chemistry and the nutrients limiting phytoplankton growth were examined in lakes located in the Northwest Territories, Canada, along a transect from the Mackenzie River Delta south to Travaillant Lake. This 230 km stretch spans gradients in vegetation types (tundra to boreal forest) and elevat...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Canadian Science Publishing
2009
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Online Access: | http://dx.doi.org/10.1139/f08-202 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-202 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-202 |
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crcansciencepubl:10.1139/f08-202 2024-04-07T07:50:23+00:00 Nutrient limitation of phytoplankton growth in Arctic lakes of the lower Mackenzie River Basin, northern Canada Ogbebo, Fortune E. Evans, Marlene S. Waiser, Marley J. Tumber, Vijay P. Keating, Jonathan J. 2009 http://dx.doi.org/10.1139/f08-202 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-202 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-202 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 66, issue 2, page 247-260 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2009 crcansciencepubl https://doi.org/10.1139/f08-202 2024-03-08T00:37:48Z Water chemistry and the nutrients limiting phytoplankton growth were examined in lakes located in the Northwest Territories, Canada, along a transect from the Mackenzie River Delta south to Travaillant Lake. This 230 km stretch spans gradients in vegetation types (tundra to boreal forest) and elevation (flooded by the Mackenzie River versus higher elevation lakes). Total phosphorus concentrations generally were typical of oligotrophic lakes (<10 µg·L –1 ), while nitrate and orthophosphate concentrations were below detection limits. Although some growth was noted in bioassays receiving single additions of nitrogen (N) or phosphorus (P), the greatest growth occurred in those bioassays in which nitrogen and phosphorus were added. This suggests that phytoplankton in the majority of study lakes were strongly co-limited by N and P irrespective of watershed type and Mackenzie River influence. Furthermore, it suggests that algal communities will be highly responsive to anthropogenic disturbances, which result in increased N and P loading to these lakes. Experimental results from March bioassays suggest that anthropogenic eutrophication would be exacerbated by increased temperatures (e.g., those associated with global warming). Article in Journal/Newspaper Arctic Global warming Mackenzie river Northwest Territories Phytoplankton Tundra Canadian Science Publishing Arctic Northwest Territories Mackenzie River Canada Travaillant Lake ENVELOPE(-131.786,-131.786,67.700,67.700) Canadian Journal of Fisheries and Aquatic Sciences 66 2 247 260 |
institution |
Open Polar |
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Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Ogbebo, Fortune E. Evans, Marlene S. Waiser, Marley J. Tumber, Vijay P. Keating, Jonathan J. Nutrient limitation of phytoplankton growth in Arctic lakes of the lower Mackenzie River Basin, northern Canada |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Water chemistry and the nutrients limiting phytoplankton growth were examined in lakes located in the Northwest Territories, Canada, along a transect from the Mackenzie River Delta south to Travaillant Lake. This 230 km stretch spans gradients in vegetation types (tundra to boreal forest) and elevation (flooded by the Mackenzie River versus higher elevation lakes). Total phosphorus concentrations generally were typical of oligotrophic lakes (<10 µg·L –1 ), while nitrate and orthophosphate concentrations were below detection limits. Although some growth was noted in bioassays receiving single additions of nitrogen (N) or phosphorus (P), the greatest growth occurred in those bioassays in which nitrogen and phosphorus were added. This suggests that phytoplankton in the majority of study lakes were strongly co-limited by N and P irrespective of watershed type and Mackenzie River influence. Furthermore, it suggests that algal communities will be highly responsive to anthropogenic disturbances, which result in increased N and P loading to these lakes. Experimental results from March bioassays suggest that anthropogenic eutrophication would be exacerbated by increased temperatures (e.g., those associated with global warming). |
format |
Article in Journal/Newspaper |
author |
Ogbebo, Fortune E. Evans, Marlene S. Waiser, Marley J. Tumber, Vijay P. Keating, Jonathan J. |
author_facet |
Ogbebo, Fortune E. Evans, Marlene S. Waiser, Marley J. Tumber, Vijay P. Keating, Jonathan J. |
author_sort |
Ogbebo, Fortune E. |
title |
Nutrient limitation of phytoplankton growth in Arctic lakes of the lower Mackenzie River Basin, northern Canada |
title_short |
Nutrient limitation of phytoplankton growth in Arctic lakes of the lower Mackenzie River Basin, northern Canada |
title_full |
Nutrient limitation of phytoplankton growth in Arctic lakes of the lower Mackenzie River Basin, northern Canada |
title_fullStr |
Nutrient limitation of phytoplankton growth in Arctic lakes of the lower Mackenzie River Basin, northern Canada |
title_full_unstemmed |
Nutrient limitation of phytoplankton growth in Arctic lakes of the lower Mackenzie River Basin, northern Canada |
title_sort |
nutrient limitation of phytoplankton growth in arctic lakes of the lower mackenzie river basin, northern canada |
publisher |
Canadian Science Publishing |
publishDate |
2009 |
url |
http://dx.doi.org/10.1139/f08-202 http://www.nrcresearchpress.com/doi/full-xml/10.1139/F08-202 http://www.nrcresearchpress.com/doi/pdf/10.1139/F08-202 |
long_lat |
ENVELOPE(-131.786,-131.786,67.700,67.700) |
geographic |
Arctic Northwest Territories Mackenzie River Canada Travaillant Lake |
geographic_facet |
Arctic Northwest Territories Mackenzie River Canada Travaillant Lake |
genre |
Arctic Global warming Mackenzie river Northwest Territories Phytoplankton Tundra |
genre_facet |
Arctic Global warming Mackenzie river Northwest Territories Phytoplankton Tundra |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 66, issue 2, page 247-260 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f08-202 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
66 |
container_issue |
2 |
container_start_page |
247 |
op_container_end_page |
260 |
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1795665078147612672 |