Species identification and connectivity of marine amphipods in Canada's three oceans.
Monitoring the distribution of marine biodiversity is a crucial step to better assess the impacts of global changes. Arctic marine fauna is dominated by amphipods in terms of abundance and biomass. These peracarids are an important marine order of crustaceans but the number of species found in the d...
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ftdoajarticles:oai:doaj.org/article:ba5ddeda10a94fe5bf4706d11d6fee18 2023-05-15T14:28:53+02:00 Species identification and connectivity of marine amphipods in Canada's three oceans. Astrid Tempestini Søren Rysgaard France Dufresne 2018-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0197174 https://doaj.org/article/ba5ddeda10a94fe5bf4706d11d6fee18 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC5965885?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0197174 https://doaj.org/article/ba5ddeda10a94fe5bf4706d11d6fee18 PLoS ONE, Vol 13, Iss 5, p e0197174 (2018) Medicine R Science Q article 2018 ftdoajarticles https://doi.org/10.1371/journal.pone.0197174 2022-12-31T06:00:32Z Monitoring the distribution of marine biodiversity is a crucial step to better assess the impacts of global changes. Arctic marine fauna is dominated by amphipods in terms of abundance and biomass. These peracarids are an important marine order of crustaceans but the number of species found in the different Canadian oceans is currently unknown. Furthermore, most species are difficult to identify due to poor taxonomic descriptions and morphological convergence. The aim of this study was to assess the species diversity of marine amphipods in the three Canadian oceans using DNA barcoding. To do so, we produced a database of DNA barcodes of amphipods from the three Canadian Oceans publicly available from the BOLD website to which we added 310 new sequences from the Canadian Arctic Archipelago. We first delimited amphipod species based on barcode gap detection techniques and tree based method (bPTP) and then compared the composition of amphipods among the three oceans in order to assess the influence of past transarctic exchanges on Arctic diversity. Our analysis of 2309 sequences which represent more than 250 provisional species revealed a high connectivity between the Atlantic and Arctic Oceans. Our results also suggest that a single threshold to delimitate species is not suitable for amphipods. This study highlights the challenges involved in species delimitation and the need to obtain complete barcoding inventories in marine invertebrates. Article in Journal/Newspaper Arctic Archipelago Arctic Canadian Arctic Archipelago Directory of Open Access Journals: DOAJ Articles Arctic Canadian Arctic Archipelago PLOS ONE 13 5 e0197174 |
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Directory of Open Access Journals: DOAJ Articles |
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English |
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Medicine R Science Q |
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Medicine R Science Q Astrid Tempestini Søren Rysgaard France Dufresne Species identification and connectivity of marine amphipods in Canada's three oceans. |
topic_facet |
Medicine R Science Q |
description |
Monitoring the distribution of marine biodiversity is a crucial step to better assess the impacts of global changes. Arctic marine fauna is dominated by amphipods in terms of abundance and biomass. These peracarids are an important marine order of crustaceans but the number of species found in the different Canadian oceans is currently unknown. Furthermore, most species are difficult to identify due to poor taxonomic descriptions and morphological convergence. The aim of this study was to assess the species diversity of marine amphipods in the three Canadian oceans using DNA barcoding. To do so, we produced a database of DNA barcodes of amphipods from the three Canadian Oceans publicly available from the BOLD website to which we added 310 new sequences from the Canadian Arctic Archipelago. We first delimited amphipod species based on barcode gap detection techniques and tree based method (bPTP) and then compared the composition of amphipods among the three oceans in order to assess the influence of past transarctic exchanges on Arctic diversity. Our analysis of 2309 sequences which represent more than 250 provisional species revealed a high connectivity between the Atlantic and Arctic Oceans. Our results also suggest that a single threshold to delimitate species is not suitable for amphipods. This study highlights the challenges involved in species delimitation and the need to obtain complete barcoding inventories in marine invertebrates. |
format |
Article in Journal/Newspaper |
author |
Astrid Tempestini Søren Rysgaard France Dufresne |
author_facet |
Astrid Tempestini Søren Rysgaard France Dufresne |
author_sort |
Astrid Tempestini |
title |
Species identification and connectivity of marine amphipods in Canada's three oceans. |
title_short |
Species identification and connectivity of marine amphipods in Canada's three oceans. |
title_full |
Species identification and connectivity of marine amphipods in Canada's three oceans. |
title_fullStr |
Species identification and connectivity of marine amphipods in Canada's three oceans. |
title_full_unstemmed |
Species identification and connectivity of marine amphipods in Canada's three oceans. |
title_sort |
species identification and connectivity of marine amphipods in canada's three oceans. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2018 |
url |
https://doi.org/10.1371/journal.pone.0197174 https://doaj.org/article/ba5ddeda10a94fe5bf4706d11d6fee18 |
geographic |
Arctic Canadian Arctic Archipelago |
geographic_facet |
Arctic Canadian Arctic Archipelago |
genre |
Arctic Archipelago Arctic Canadian Arctic Archipelago |
genre_facet |
Arctic Archipelago Arctic Canadian Arctic Archipelago |
op_source |
PLoS ONE, Vol 13, Iss 5, p e0197174 (2018) |
op_relation |
http://europepmc.org/articles/PMC5965885?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0197174 https://doaj.org/article/ba5ddeda10a94fe5bf4706d11d6fee18 |
op_doi |
https://doi.org/10.1371/journal.pone.0197174 |
container_title |
PLOS ONE |
container_volume |
13 |
container_issue |
5 |
container_start_page |
e0197174 |
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