Deep penetration of kelps offshore along the west coast of Greenland
Until recently, Arctic kelp forests were so understudied that they did not even appear in global kelp forest maps. An increasing focus on Arctic coastal ecosystems has documented extended kelp forests along Arctic coastlines but the distribution of the forests is still not well documented and opens...
Published in: | Frontiers in Marine Science |
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Main Authors: | , , , , , , , , |
Other Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
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Frontiers Media SA
2019
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Subjects: | |
Online Access: | http://hdl.handle.net/10754/656213 https://doi.org/10.3389/fmars.2019.00375 |
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ftkingabdullahun:oai:repository.kaust.edu.sa:10754/656213 |
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record_format |
openpolar |
institution |
Open Polar |
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King Abdullah University of Science and Technology: KAUST Repository |
op_collection_id |
ftkingabdullahun |
language |
unknown |
topic |
macroalgae Saccharina Agarum submerged vegetation depth extension Arctic |
spellingShingle |
macroalgae Saccharina Agarum submerged vegetation depth extension Arctic Krause-Jensen, Dorte Sejr, Mikael K. Bruhn, Annette Rasmussen, Michael B. Christensen, Peter Bondo Hansen, Jørgen L.S. Duarte, Carlos M. Bruntse, Grethe Wegeberg, Susse Deep penetration of kelps offshore along the west coast of Greenland |
topic_facet |
macroalgae Saccharina Agarum submerged vegetation depth extension Arctic |
description |
Until recently, Arctic kelp forests were so understudied that they did not even appear in global kelp forest maps. An increasing focus on Arctic coastal ecosystems has documented extended kelp forests along Arctic coastlines but the distribution of the forests is still not well documented and opens up for surprises. Here, we report kelp depth limits deeper than 61 m (median: 38.4 m, 10-90% percentiles: 10.8-54.4 m) in the Disko Bay region, Greenland, at latitudes of 67-70°N. We compiled, for comparison, existing records of kelp depth limits in high latitude (50°N) regions (median: 17.7 m, 10-90% percentiles: 9.0-38.1 m), which underline that the Disko Bay kelps hold a depth-record for this region. The deepest kelps were located at offshore sites beyond the Disko Island and the main coast. The clear waters offshore with euphotic zones (1% of surface irradiance) extending to 67 m depth provide, along with deep rocky seafloors and low density of sea urchins, the basis for these deep kelps. The sites were ice-covered for 77-133 days year-1, which is beyond the length of the polar night (30-60 days year-1) in the region, suggesting a potential for further depth penetration of kelp forests in a future with longer open water periods and more light potentially reaching the seafloor. This study was a contribution to the Northeast Greenland Environmental Study Program, a collaboration between the Danish Centre for Environment and Energy (DCE, Aarhus University), the Greenland Institute of Natural Resources, and the Environmental Agency for Mineral Resource Activities of the Government of Greenland. Oil companies operating in Greenland are obliged to contribute to knowledge regarding environmental matters. The Strategic Environmental Impact Assessment and the background study program are funded under these commitments administered by the Mineral License and Safety Authority and the Environmental Agency for Mineral Resource Activities. The study was also a contribution to the Greenland Ecosystem Monitoring Program ... |
author2 |
Biological and Environmental Sciences and Engineering (BESE) Division Marine Science Program Marine Science and Engineering Red Sea Research Center Red Sea Research Center (RSRC) Department of Bioscience, Arctic Research Centre, Aarhus University, Aarhus, Denmark Department of Bioscience, Aarhus University, Silkeborg, Denmark Department of Bioscience, Aarhus University, Roskilde, Denmark Tønder Kommune, Tønder, Denmark |
format |
Article in Journal/Newspaper |
author |
Krause-Jensen, Dorte Sejr, Mikael K. Bruhn, Annette Rasmussen, Michael B. Christensen, Peter Bondo Hansen, Jørgen L.S. Duarte, Carlos M. Bruntse, Grethe Wegeberg, Susse |
author_facet |
Krause-Jensen, Dorte Sejr, Mikael K. Bruhn, Annette Rasmussen, Michael B. Christensen, Peter Bondo Hansen, Jørgen L.S. Duarte, Carlos M. Bruntse, Grethe Wegeberg, Susse |
author_sort |
Krause-Jensen, Dorte |
title |
Deep penetration of kelps offshore along the west coast of Greenland |
title_short |
Deep penetration of kelps offshore along the west coast of Greenland |
title_full |
Deep penetration of kelps offshore along the west coast of Greenland |
title_fullStr |
Deep penetration of kelps offshore along the west coast of Greenland |
title_full_unstemmed |
Deep penetration of kelps offshore along the west coast of Greenland |
title_sort |
deep penetration of kelps offshore along the west coast of greenland |
publisher |
Frontiers Media SA |
publishDate |
2019 |
url |
http://hdl.handle.net/10754/656213 https://doi.org/10.3389/fmars.2019.00375 |
genre |
Arctic Disko Bay Greenland Greenland Institute of Natural Resources polar night |
genre_facet |
Arctic Disko Bay Greenland Greenland Institute of Natural Resources polar night |
op_relation |
https://www.frontiersin.org/article/10.3389/fmars.2019.00375/full Krause-Jensen, D., Sejr, M. K., Bruhn, A., Rasmussen, M. B., Christensen, P. B., Hansen, J. L. S., … Wegeberg, S. (2019). Deep Penetration of Kelps Offshore Along the West Coast of Greenland. Frontiers in Marine Science, 6. doi:10.3389/fmars.2019.00375 doi:10.3389/fmars.2019.00375 Frontiers in Marine Science http://hdl.handle.net/10754/656213 |
op_rights |
This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2019.00375 |
container_title |
Frontiers in Marine Science |
container_volume |
6 |
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1786819986114740224 |
spelling |
ftkingabdullahun:oai:repository.kaust.edu.sa:10754/656213 2023-12-31T10:03:17+01:00 Deep penetration of kelps offshore along the west coast of Greenland Krause-Jensen, Dorte Sejr, Mikael K. Bruhn, Annette Rasmussen, Michael B. Christensen, Peter Bondo Hansen, Jørgen L.S. Duarte, Carlos M. Bruntse, Grethe Wegeberg, Susse Biological and Environmental Sciences and Engineering (BESE) Division Marine Science Program Marine Science and Engineering Red Sea Research Center Red Sea Research Center (RSRC) Department of Bioscience, Arctic Research Centre, Aarhus University, Aarhus, Denmark Department of Bioscience, Aarhus University, Silkeborg, Denmark Department of Bioscience, Aarhus University, Roskilde, Denmark Tønder Kommune, Tønder, Denmark 2019-07-03 application/pdf http://hdl.handle.net/10754/656213 https://doi.org/10.3389/fmars.2019.00375 unknown Frontiers Media SA https://www.frontiersin.org/article/10.3389/fmars.2019.00375/full Krause-Jensen, D., Sejr, M. K., Bruhn, A., Rasmussen, M. B., Christensen, P. B., Hansen, J. L. S., … Wegeberg, S. (2019). Deep Penetration of Kelps Offshore Along the West Coast of Greenland. Frontiers in Marine Science, 6. doi:10.3389/fmars.2019.00375 doi:10.3389/fmars.2019.00375 Frontiers in Marine Science http://hdl.handle.net/10754/656213 This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. http://creativecommons.org/licenses/by/4.0/ macroalgae Saccharina Agarum submerged vegetation depth extension Arctic Article 2019 ftkingabdullahun https://doi.org/10.3389/fmars.2019.00375 2023-12-02T20:21:26Z Until recently, Arctic kelp forests were so understudied that they did not even appear in global kelp forest maps. An increasing focus on Arctic coastal ecosystems has documented extended kelp forests along Arctic coastlines but the distribution of the forests is still not well documented and opens up for surprises. Here, we report kelp depth limits deeper than 61 m (median: 38.4 m, 10-90% percentiles: 10.8-54.4 m) in the Disko Bay region, Greenland, at latitudes of 67-70°N. We compiled, for comparison, existing records of kelp depth limits in high latitude (50°N) regions (median: 17.7 m, 10-90% percentiles: 9.0-38.1 m), which underline that the Disko Bay kelps hold a depth-record for this region. The deepest kelps were located at offshore sites beyond the Disko Island and the main coast. The clear waters offshore with euphotic zones (1% of surface irradiance) extending to 67 m depth provide, along with deep rocky seafloors and low density of sea urchins, the basis for these deep kelps. The sites were ice-covered for 77-133 days year-1, which is beyond the length of the polar night (30-60 days year-1) in the region, suggesting a potential for further depth penetration of kelp forests in a future with longer open water periods and more light potentially reaching the seafloor. This study was a contribution to the Northeast Greenland Environmental Study Program, a collaboration between the Danish Centre for Environment and Energy (DCE, Aarhus University), the Greenland Institute of Natural Resources, and the Environmental Agency for Mineral Resource Activities of the Government of Greenland. Oil companies operating in Greenland are obliged to contribute to knowledge regarding environmental matters. The Strategic Environmental Impact Assessment and the background study program are funded under these commitments administered by the Mineral License and Safety Authority and the Environmental Agency for Mineral Resource Activities. The study was also a contribution to the Greenland Ecosystem Monitoring Program ... Article in Journal/Newspaper Arctic Disko Bay Greenland Greenland Institute of Natural Resources polar night King Abdullah University of Science and Technology: KAUST Repository Frontiers in Marine Science 6 |