Temporal change in the molluscan assemblages (bivalves and gastropods) of Frobisher Bay, Nunavut, Canada, over 50 years
Long-term studies provide an effective way to assess the ecological impacts of decades-long environmental change in Arctic coastal benthic environments, but are rarely undertaken in the Canadian Arctic. In light of this, historical datasets can be compared with modern samples to examine temporal dif...
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2022
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Online Access: | http://dx.doi.org/10.1139/as-2020-0037 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2020-0037 https://cdnsciencepub.com/doi/pdf/10.1139/as-2020-0037 |
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crcansciencepubl:10.1139/as-2020-0037 2023-12-17T10:22:55+01:00 Temporal change in the molluscan assemblages (bivalves and gastropods) of Frobisher Bay, Nunavut, Canada, over 50 years Herder, Erin C. Aitken, Alec Edinger, Evan 2022 http://dx.doi.org/10.1139/as-2020-0037 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2020-0037 https://cdnsciencepub.com/doi/pdf/10.1139/as-2020-0037 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Arctic Science volume 8, issue 1, page 200-227 ISSN 2368-7460 2368-7460 General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science journal-article 2022 crcansciencepubl https://doi.org/10.1139/as-2020-0037 2023-11-19T13:38:45Z Long-term studies provide an effective way to assess the ecological impacts of decades-long environmental change in Arctic coastal benthic environments, but are rarely undertaken in the Canadian Arctic. In light of this, historical datasets can be compared with modern samples to examine temporal differences in benthic community structure. Frobisher Bay, Nunavut, provides a unique opportunity to use a historical census to examine the impacts that long-term environmental changes have had on the marine benthos. Between 1967 and 1976, and in 2016, infaunal samples were collected in inner Frobisher Bay and were compared to determine how the molluscan assemblages have changed between the two time periods. Molluscan assemblages in two regions of inner Frobisher Bay (Iqaluit and Cairn Island) were examined to minimize sampling discrepancies between the two time periods. A long-term increase in mean annual air temperature and a decline in the length of the ice cover season were observed. Both regions exhibited some change in sediment composition and quality as well as in molluscan assemblage between the two time periods, and species diversity indices also indicated some change between these time periods. Both the 1967–1976 and 2016 molluscan datasets provide a baseline for future long-term studies in a changing Arctic. Article in Journal/Newspaper Arctic Arctic Frobisher Bay Iqaluit Nunavut Canadian Science Publishing (via Crossref) Arctic Nunavut Canada Frobisher Bay ENVELOPE(-66.581,-66.581,62.834,62.834) Cairn ENVELOPE(-57.083,-57.083,-63.500,-63.500) Cairn Island ENVELOPE(-68.440,-68.440,63.663,63.663) Arctic Science |
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Open Polar |
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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 |
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General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science Herder, Erin C. Aitken, Alec Edinger, Evan Temporal change in the molluscan assemblages (bivalves and gastropods) of Frobisher Bay, Nunavut, Canada, over 50 years |
topic_facet |
General Earth and Planetary Sciences General Agricultural and Biological Sciences General Environmental Science |
description |
Long-term studies provide an effective way to assess the ecological impacts of decades-long environmental change in Arctic coastal benthic environments, but are rarely undertaken in the Canadian Arctic. In light of this, historical datasets can be compared with modern samples to examine temporal differences in benthic community structure. Frobisher Bay, Nunavut, provides a unique opportunity to use a historical census to examine the impacts that long-term environmental changes have had on the marine benthos. Between 1967 and 1976, and in 2016, infaunal samples were collected in inner Frobisher Bay and were compared to determine how the molluscan assemblages have changed between the two time periods. Molluscan assemblages in two regions of inner Frobisher Bay (Iqaluit and Cairn Island) were examined to minimize sampling discrepancies between the two time periods. A long-term increase in mean annual air temperature and a decline in the length of the ice cover season were observed. Both regions exhibited some change in sediment composition and quality as well as in molluscan assemblage between the two time periods, and species diversity indices also indicated some change between these time periods. Both the 1967–1976 and 2016 molluscan datasets provide a baseline for future long-term studies in a changing Arctic. |
format |
Article in Journal/Newspaper |
author |
Herder, Erin C. Aitken, Alec Edinger, Evan |
author_facet |
Herder, Erin C. Aitken, Alec Edinger, Evan |
author_sort |
Herder, Erin C. |
title |
Temporal change in the molluscan assemblages (bivalves and gastropods) of Frobisher Bay, Nunavut, Canada, over 50 years |
title_short |
Temporal change in the molluscan assemblages (bivalves and gastropods) of Frobisher Bay, Nunavut, Canada, over 50 years |
title_full |
Temporal change in the molluscan assemblages (bivalves and gastropods) of Frobisher Bay, Nunavut, Canada, over 50 years |
title_fullStr |
Temporal change in the molluscan assemblages (bivalves and gastropods) of Frobisher Bay, Nunavut, Canada, over 50 years |
title_full_unstemmed |
Temporal change in the molluscan assemblages (bivalves and gastropods) of Frobisher Bay, Nunavut, Canada, over 50 years |
title_sort |
temporal change in the molluscan assemblages (bivalves and gastropods) of frobisher bay, nunavut, canada, over 50 years |
publisher |
Canadian Science Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1139/as-2020-0037 https://cdnsciencepub.com/doi/full-xml/10.1139/as-2020-0037 https://cdnsciencepub.com/doi/pdf/10.1139/as-2020-0037 |
long_lat |
ENVELOPE(-66.581,-66.581,62.834,62.834) ENVELOPE(-57.083,-57.083,-63.500,-63.500) ENVELOPE(-68.440,-68.440,63.663,63.663) |
geographic |
Arctic Nunavut Canada Frobisher Bay Cairn Cairn Island |
geographic_facet |
Arctic Nunavut Canada Frobisher Bay Cairn Cairn Island |
genre |
Arctic Arctic Frobisher Bay Iqaluit Nunavut |
genre_facet |
Arctic Arctic Frobisher Bay Iqaluit Nunavut |
op_source |
Arctic Science volume 8, issue 1, page 200-227 ISSN 2368-7460 2368-7460 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/as-2020-0037 |
container_title |
Arctic Science |
_version_ |
1785554519391731712 |