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...
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Online Access: | http://dx.doi.org/10.1139/as-2019-0024 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2019-0024 https://cdnsciencepub.com/doi/pdf/10.1139/as-2019-0024 |
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crcansciencepubl:10.1139/as-2019-0024 2023-12-17T10:22:57+01:00 Are different benthic communities in Arctic delta lakes distinguishable along a hydrological connectivity gradient using a rapid bioassessment approach? Scott, Ryan W. Tank, Suzanne E. Wang, Xiaowa Quinlan, Roberto 2020 http://dx.doi.org/10.1139/as-2019-0024 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2019-0024 https://cdnsciencepub.com/doi/pdf/10.1139/as-2019-0024 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Arctic Science volume 6, issue 4, page 463-487 ISSN 2368-7460 2368-7460 General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science journal-article 2020 crcansciencepubl https://doi.org/10.1139/as-2019-0024 2023-11-19T13:39:04Z 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 Canadian Science Publishing (via Crossref) Arctic Northwest Territories Mackenzie Delta ENVELOPE(-136.672,-136.672,68.833,68.833) Arctic Science 6 4 463 487 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
spellingShingle |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science Scott, Ryan W. Tank, Suzanne E. Wang, Xiaowa Quinlan, Roberto Are different benthic communities in Arctic delta lakes distinguishable along a hydrological connectivity gradient using a rapid bioassessment approach? |
topic_facet |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
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 |
Scott, Ryan W. Tank, Suzanne E. Wang, Xiaowa Quinlan, Roberto |
author_facet |
Scott, Ryan W. Tank, Suzanne E. Wang, Xiaowa Quinlan, Roberto |
author_sort |
Scott, Ryan W. |
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 |
http://dx.doi.org/10.1139/as-2019-0024 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2019-0024 https://cdnsciencepub.com/doi/pdf/10.1139/as-2019-0024 |
long_lat |
ENVELOPE(-136.672,-136.672,68.833,68.833) |
geographic |
Arctic Northwest Territories Mackenzie Delta |
geographic_facet |
Arctic Northwest Territories Mackenzie Delta |
genre |
Arctic Arctic Climate change Mackenzie Delta Northwest Territories |
genre_facet |
Arctic Arctic Climate change Mackenzie Delta Northwest Territories |
op_source |
Arctic Science volume 6, issue 4, page 463-487 ISSN 2368-7460 2368-7460 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
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_ |
1785554706141020160 |