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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Canadian Science Publishing
2022
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Online Access: | https://doi.org/10.1139/as-2020-0037 https://doaj.org/article/21bf6b920266455087e143dccb9bc923 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:21bf6b920266455087e143dccb9bc923 2023-05-15T14:22:21+02:00 Temporal change in the molluscan assemblages (bivalves and gastropods) of Frobisher Bay, Nunavut, Canada, over 50 years Erin C. Herder Alec Aitken Evan Edinger 2022-03-01 https://doi.org/10.1139/as-2020-0037 https://doaj.org/article/21bf6b920266455087e143dccb9bc923 en fr eng fre Canadian Science Publishing doi:10.1139/as-2020-0037 2368-7460 https://doaj.org/article/21bf6b920266455087e143dccb9bc923 undefined Arctic Science, Vol 8, Iss 1, Pp 200-227 (2022) long-term ecology temporal change molluscs benthic communities Frobisher Bay écologie à long terme envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2022 fttriple https://doi.org/10.1139/as-2020-0037 2023-01-22T17:51:23Z 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 Unknown Arctic Cairn ENVELOPE(-57.083,-57.083,-63.500,-63.500) Cairn Island ENVELOPE(-68.440,-68.440,63.663,63.663) Canada Frobisher Bay ENVELOPE(-66.581,-66.581,62.834,62.834) Nunavut Arctic Science 8 1 200 227 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English French |
topic |
long-term ecology temporal change molluscs benthic communities Frobisher Bay écologie à long terme envir geo |
spellingShingle |
long-term ecology temporal change molluscs benthic communities Frobisher Bay écologie à long terme envir geo Erin C. Herder Alec Aitken Evan Edinger Temporal change in the molluscan assemblages (bivalves and gastropods) of Frobisher Bay, Nunavut, Canada, over 50 years |
topic_facet |
long-term ecology temporal change molluscs benthic communities Frobisher Bay écologie à long terme envir geo |
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 |
Erin C. Herder Alec Aitken Evan Edinger |
author_facet |
Erin C. Herder Alec Aitken Evan Edinger |
author_sort |
Erin C. Herder |
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 |
https://doi.org/10.1139/as-2020-0037 https://doaj.org/article/21bf6b920266455087e143dccb9bc923 |
long_lat |
ENVELOPE(-57.083,-57.083,-63.500,-63.500) ENVELOPE(-68.440,-68.440,63.663,63.663) ENVELOPE(-66.581,-66.581,62.834,62.834) |
geographic |
Arctic Cairn Cairn Island Canada Frobisher Bay Nunavut |
geographic_facet |
Arctic Cairn Cairn Island Canada Frobisher Bay Nunavut |
genre |
Arctic Arctic Frobisher Bay Iqaluit Nunavut |
genre_facet |
Arctic Arctic Frobisher Bay Iqaluit Nunavut |
op_source |
Arctic Science, Vol 8, Iss 1, Pp 200-227 (2022) |
op_relation |
doi:10.1139/as-2020-0037 2368-7460 https://doaj.org/article/21bf6b920266455087e143dccb9bc923 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1139/as-2020-0037 |
container_title |
Arctic Science |
container_volume |
8 |
container_issue |
1 |
container_start_page |
200 |
op_container_end_page |
227 |
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1766294968416075776 |