Are different benthic communities in Arctic delta lakes distinguishable along a hydrological connectivity gradient using a rapid bioassessment approach?
Aquatic habitats in the Canadian Arctic are expected to come under increasing stress due to projected effects of climate change. There is a need for community-based biomonitoring programs to observe and understand the effects of these stressors on the environment. Here we present results from a 5 ye...
Published in: | Arctic Science |
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Language: | English French |
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Canadian Science Publishing
2020
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Online Access: | https://doi.org/10.1139/as-2019-0024 https://doaj.org/article/cc8503a2412c40b0acc1c5ae4e79759d |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:cc8503a2412c40b0acc1c5ae4e79759d 2023-05-15T14:22:20+02:00 Are different benthic communities in Arctic delta lakes distinguishable along a hydrological connectivity gradient using a rapid bioassessment approach? Ryan W. Scott Suzanne E. Tank Xiaowa Wang Roberto Quinlan 2020-12-01 https://doi.org/10.1139/as-2019-0024 https://doaj.org/article/cc8503a2412c40b0acc1c5ae4e79759d en fr eng fre Canadian Science Publishing doi:10.1139/as-2019-0024 2368-7460 https://doaj.org/article/cc8503a2412c40b0acc1c5ae4e79759d undefined Arctic Science, Vol 6, Iss 4, Pp 463-487 (2020) benthic invertebrates biomonitoring mackenzie delta floodplain lakes limnology envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2020 fttriple https://doi.org/10.1139/as-2019-0024 2023-01-22T18:42:56Z Aquatic habitats in the Canadian Arctic are expected to come under increasing stress due to projected effects of climate change. There is a need for community-based biomonitoring programs to observe and understand the effects of these stressors on the environment. Here we present results from a 5 year annual sampling program of benthic invertebrates from lakes in the Mackenzie Delta, Northwest Territories, using a rapid bioassessment protocol. Connectivity between the deltaic lakes and main channels is a major driver of lake function and is expected to be substantially impacted by climate change. Lakes were selected along a gradient of connectivity based on sill elevation above the river. Using multivariate analyses of community structure, we determined that benthic assemblages responded to differences in connection time among lakes. This response was detected using a coarse taxonomic level that could be applied by community groups or volunteers but was stronger when invertebrates were identified to the family and genus levels. A secondary gradient was observed that corresponded to productivity gradients in lakes that are isolated from the river during summer. We show that benthic assemblages have potential use as sensitive indicators of climate-mediated changes to the hydrology of lakes in the Mackenzie Delta. Article in Journal/Newspaper Arctic Arctic Climate change Mackenzie Delta Northwest Territories Unknown Arctic Mackenzie Delta ENVELOPE(-136.672,-136.672,68.833,68.833) Northwest Territories Arctic Science 6 4 463 487 |
institution |
Open Polar |
collection |
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op_collection_id |
fttriple |
language |
English French |
topic |
benthic invertebrates biomonitoring mackenzie delta floodplain lakes limnology envir geo |
spellingShingle |
benthic invertebrates biomonitoring mackenzie delta floodplain lakes limnology envir geo Ryan W. Scott Suzanne E. Tank Xiaowa Wang Roberto Quinlan Are different benthic communities in Arctic delta lakes distinguishable along a hydrological connectivity gradient using a rapid bioassessment approach? |
topic_facet |
benthic invertebrates biomonitoring mackenzie delta floodplain lakes limnology envir geo |
description |
Aquatic habitats in the Canadian Arctic are expected to come under increasing stress due to projected effects of climate change. There is a need for community-based biomonitoring programs to observe and understand the effects of these stressors on the environment. Here we present results from a 5 year annual sampling program of benthic invertebrates from lakes in the Mackenzie Delta, Northwest Territories, using a rapid bioassessment protocol. Connectivity between the deltaic lakes and main channels is a major driver of lake function and is expected to be substantially impacted by climate change. Lakes were selected along a gradient of connectivity based on sill elevation above the river. Using multivariate analyses of community structure, we determined that benthic assemblages responded to differences in connection time among lakes. This response was detected using a coarse taxonomic level that could be applied by community groups or volunteers but was stronger when invertebrates were identified to the family and genus levels. A secondary gradient was observed that corresponded to productivity gradients in lakes that are isolated from the river during summer. We show that benthic assemblages have potential use as sensitive indicators of climate-mediated changes to the hydrology of lakes in the Mackenzie Delta. |
format |
Article in Journal/Newspaper |
author |
Ryan W. Scott Suzanne E. Tank Xiaowa Wang Roberto Quinlan |
author_facet |
Ryan W. Scott Suzanne E. Tank Xiaowa Wang Roberto Quinlan |
author_sort |
Ryan W. Scott |
title |
Are different benthic communities in Arctic delta lakes distinguishable along a hydrological connectivity gradient using a rapid bioassessment approach? |
title_short |
Are different benthic communities in Arctic delta lakes distinguishable along a hydrological connectivity gradient using a rapid bioassessment approach? |
title_full |
Are different benthic communities in Arctic delta lakes distinguishable along a hydrological connectivity gradient using a rapid bioassessment approach? |
title_fullStr |
Are different benthic communities in Arctic delta lakes distinguishable along a hydrological connectivity gradient using a rapid bioassessment approach? |
title_full_unstemmed |
Are different benthic communities in Arctic delta lakes distinguishable along a hydrological connectivity gradient using a rapid bioassessment approach? |
title_sort |
are different benthic communities in arctic delta lakes distinguishable along a hydrological connectivity gradient using a rapid bioassessment approach? |
publisher |
Canadian Science Publishing |
publishDate |
2020 |
url |
https://doi.org/10.1139/as-2019-0024 https://doaj.org/article/cc8503a2412c40b0acc1c5ae4e79759d |
long_lat |
ENVELOPE(-136.672,-136.672,68.833,68.833) |
geographic |
Arctic Mackenzie Delta Northwest Territories |
geographic_facet |
Arctic Mackenzie Delta Northwest Territories |
genre |
Arctic Arctic Climate change Mackenzie Delta Northwest Territories |
genre_facet |
Arctic Arctic Climate change Mackenzie Delta Northwest Territories |
op_source |
Arctic Science, Vol 6, Iss 4, Pp 463-487 (2020) |
op_relation |
doi:10.1139/as-2019-0024 2368-7460 https://doaj.org/article/cc8503a2412c40b0acc1c5ae4e79759d |
op_rights |
undefined |
op_doi |
https://doi.org/10.1139/as-2019-0024 |
container_title |
Arctic Science |
container_volume |
6 |
container_issue |
4 |
container_start_page |
463 |
op_container_end_page |
487 |
_version_ |
1766294962134056960 |