Seafloor biodiversity of Canada's three oceans: patterns, hotspots and potential drivers
Aim We examined the relationships between bathymetry, latitude and energy and the diversity of marine benthic invertebrates across wide environmental ranges of Canada's three oceans. Location Canadian Pacific, Arctic and Atlantic Oceans from the intertidal zone to upper bathyal depths, encompas...
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ftunivquebecchic:oai:constellation.uqac.ca:5376 2023-05-15T14:29:00+02:00 Seafloor biodiversity of Canada's three oceans: patterns, hotspots and potential drivers Wei, Chih‐Lin Cusson, Mathieu Archambault, Philippe Belley, Renald Brown, Tanya Burd, Brenda J. Edinger, Evan Kenchington, Ellen Gilkinson, Kent Lawton, Peter Link, Heike Ramey‐Balci, Patricia A. Scrosati, Ricardo A. Snelgrove, Paul V. R. 2020 application/pdf https://constellation.uqac.ca/5376/1/Wei_Cusson_et_al_2019_DD.pdf en eng https://constellation.uqac.ca/5376/ http://dx.doi.org/doi:10.1111/ddi.13013 doi:10.1111/ddi.13013 https://constellation.uqac.ca/5376/1/Wei_Cusson_et_al_2019_DD.pdf Wei Chih‐Lin, Cusson Mathieu, Archambault Philippe, Belley Renald, Brown Tanya, Burd Brenda J., Edinger Evan, Kenchington Ellen, Gilkinson Kent, Lawton Peter, Link Heike, Ramey‐Balci Patricia A., Scrosati Ricardo A. et Snelgrove Paul V. R. (2020). Seafloor biodiversity of Canada's three oceans: patterns, hotspots and potential drivers. Diversity and Distributions, 26, (2), p. 226-241. cc_by_nc_nd CC-BY-NC-ND Océanographie Biologie et autres sciences connexes Article publié dans une revue avec comité d'évaluation PeerReviewed 2020 ftunivquebecchic https://doi.org/10.1111/ddi.13013 2021-03-08T12:03:41Z Aim We examined the relationships between bathymetry, latitude and energy and the diversity of marine benthic invertebrates across wide environmental ranges of Canada's three oceans. Location Canadian Pacific, Arctic and Atlantic Oceans from the intertidal zone to upper bathyal depths, encompassing 13 marine ecoregions. Methods We compiled 35 benthic datasets that encompass 3,337 taxa (70% identified to species and 21% to genus) from 13,172 samples spanning 6,117 sites. Partitioning the analyses by different gear types, ecoregions or sites, we used Hill numbers to examine spatial patterns in α‐diversity. We used resampling and extrapolation to standardized sampling effort and examined the effects of depth, latitude, chemical energy (export particulate organic carbon [POC] flux), thermal energy (bottom temperature) and seasonality of primary production on the benthic biodiversity. Results The Canadian Arctic harboured the highest benthic diversity (e.g. epifauna and common and dominant infauna species), whereas the lowest diversity was found in the Atlantic. The Puget Trough (Pacific), Beaufort Sea, Arctic Archipelago, Hudson Bay, Northern Labrador and Southern Grand Bank (Atlantic) were the “hotspots" of diversity among the ecoregions. The infauna and epifauna both exhibited hump‐shaped diversity–depth relationships, with peak diversity near shelf breaks; latitude (positively) predicted infaunal diversity, albeit weakly. Food supply, as inferred from primary production and depth, was more important than thermal energy in controlling diversity patterns. Limitations with respect to calculating POC flux in coastal (e.g. terrestrial runoff) and ice‐covered regions or biological interactions may explain the negative POC flux–infaunal diversity relationship. Main Conclusions We show previously unreported diversity hotspots in the Canadian Arctic and in other ecoregions. Our analyses reveal potential controlling mechanisms of large‐scale benthic biodiversity patterns in Canada's three oceans, which are inconsistent with the prevailing view of seafloor energy–diversity relationships. These results provide insightful information for conservation that can help to implement further MPA networks. Text Arctic Archipelago Arctic Beaufort Sea Hudson Bay Pacific Arctic Université du Québec à Chicoutimi (UQAC): Constellation Arctic Hudson Hudson Bay Pacific Diversity and Distributions 26 2 226 241 |
institution |
Open Polar |
collection |
Université du Québec à Chicoutimi (UQAC): Constellation |
op_collection_id |
ftunivquebecchic |
language |
English |
topic |
Océanographie Biologie et autres sciences connexes |
spellingShingle |
Océanographie Biologie et autres sciences connexes Wei, Chih‐Lin Cusson, Mathieu Archambault, Philippe Belley, Renald Brown, Tanya Burd, Brenda J. Edinger, Evan Kenchington, Ellen Gilkinson, Kent Lawton, Peter Link, Heike Ramey‐Balci, Patricia A. Scrosati, Ricardo A. Snelgrove, Paul V. R. Seafloor biodiversity of Canada's three oceans: patterns, hotspots and potential drivers |
topic_facet |
Océanographie Biologie et autres sciences connexes |
description |
Aim We examined the relationships between bathymetry, latitude and energy and the diversity of marine benthic invertebrates across wide environmental ranges of Canada's three oceans. Location Canadian Pacific, Arctic and Atlantic Oceans from the intertidal zone to upper bathyal depths, encompassing 13 marine ecoregions. Methods We compiled 35 benthic datasets that encompass 3,337 taxa (70% identified to species and 21% to genus) from 13,172 samples spanning 6,117 sites. Partitioning the analyses by different gear types, ecoregions or sites, we used Hill numbers to examine spatial patterns in α‐diversity. We used resampling and extrapolation to standardized sampling effort and examined the effects of depth, latitude, chemical energy (export particulate organic carbon [POC] flux), thermal energy (bottom temperature) and seasonality of primary production on the benthic biodiversity. Results The Canadian Arctic harboured the highest benthic diversity (e.g. epifauna and common and dominant infauna species), whereas the lowest diversity was found in the Atlantic. The Puget Trough (Pacific), Beaufort Sea, Arctic Archipelago, Hudson Bay, Northern Labrador and Southern Grand Bank (Atlantic) were the “hotspots" of diversity among the ecoregions. The infauna and epifauna both exhibited hump‐shaped diversity–depth relationships, with peak diversity near shelf breaks; latitude (positively) predicted infaunal diversity, albeit weakly. Food supply, as inferred from primary production and depth, was more important than thermal energy in controlling diversity patterns. Limitations with respect to calculating POC flux in coastal (e.g. terrestrial runoff) and ice‐covered regions or biological interactions may explain the negative POC flux–infaunal diversity relationship. Main Conclusions We show previously unreported diversity hotspots in the Canadian Arctic and in other ecoregions. Our analyses reveal potential controlling mechanisms of large‐scale benthic biodiversity patterns in Canada's three oceans, which are inconsistent with the prevailing view of seafloor energy–diversity relationships. These results provide insightful information for conservation that can help to implement further MPA networks. |
format |
Text |
author |
Wei, Chih‐Lin Cusson, Mathieu Archambault, Philippe Belley, Renald Brown, Tanya Burd, Brenda J. Edinger, Evan Kenchington, Ellen Gilkinson, Kent Lawton, Peter Link, Heike Ramey‐Balci, Patricia A. Scrosati, Ricardo A. Snelgrove, Paul V. R. |
author_facet |
Wei, Chih‐Lin Cusson, Mathieu Archambault, Philippe Belley, Renald Brown, Tanya Burd, Brenda J. Edinger, Evan Kenchington, Ellen Gilkinson, Kent Lawton, Peter Link, Heike Ramey‐Balci, Patricia A. Scrosati, Ricardo A. Snelgrove, Paul V. R. |
author_sort |
Wei, Chih‐Lin |
title |
Seafloor biodiversity of Canada's three oceans: patterns, hotspots and potential drivers |
title_short |
Seafloor biodiversity of Canada's three oceans: patterns, hotspots and potential drivers |
title_full |
Seafloor biodiversity of Canada's three oceans: patterns, hotspots and potential drivers |
title_fullStr |
Seafloor biodiversity of Canada's three oceans: patterns, hotspots and potential drivers |
title_full_unstemmed |
Seafloor biodiversity of Canada's three oceans: patterns, hotspots and potential drivers |
title_sort |
seafloor biodiversity of canada's three oceans: patterns, hotspots and potential drivers |
publishDate |
2020 |
url |
https://constellation.uqac.ca/5376/1/Wei_Cusson_et_al_2019_DD.pdf |
geographic |
Arctic Hudson Hudson Bay Pacific |
geographic_facet |
Arctic Hudson Hudson Bay Pacific |
genre |
Arctic Archipelago Arctic Beaufort Sea Hudson Bay Pacific Arctic |
genre_facet |
Arctic Archipelago Arctic Beaufort Sea Hudson Bay Pacific Arctic |
op_relation |
https://constellation.uqac.ca/5376/ http://dx.doi.org/doi:10.1111/ddi.13013 doi:10.1111/ddi.13013 https://constellation.uqac.ca/5376/1/Wei_Cusson_et_al_2019_DD.pdf Wei Chih‐Lin, Cusson Mathieu, Archambault Philippe, Belley Renald, Brown Tanya, Burd Brenda J., Edinger Evan, Kenchington Ellen, Gilkinson Kent, Lawton Peter, Link Heike, Ramey‐Balci Patricia A., Scrosati Ricardo A. et Snelgrove Paul V. R. (2020). Seafloor biodiversity of Canada's three oceans: patterns, hotspots and potential drivers. Diversity and Distributions, 26, (2), p. 226-241. |
op_rights |
cc_by_nc_nd |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1111/ddi.13013 |
container_title |
Diversity and Distributions |
container_volume |
26 |
container_issue |
2 |
container_start_page |
226 |
op_container_end_page |
241 |
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1766303107587768320 |