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...
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Online Access: | https://doi.org/10.3389/fmars.2019.00375 https://doaj.org/article/a6812d0b065642fba27d1f8844f6adc2 |
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ftdoajarticles:oai:doaj.org/article:a6812d0b065642fba27d1f8844f6adc2 2023-05-15T14:50:26+02:00 Deep Penetration of Kelps Offshore Along the West Coast of Greenland Dorte Krause-Jensen Mikael K. Sejr Annette Bruhn Michael B. Rasmussen Peter Bondo Christensen Jørgen L. S. Hansen Carlos M. Duarte Grethe Bruntse Susse Wegeberg 2019-07-01T00:00:00Z https://doi.org/10.3389/fmars.2019.00375 https://doaj.org/article/a6812d0b065642fba27d1f8844f6adc2 EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/fmars.2019.00375/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2019.00375 https://doaj.org/article/a6812d0b065642fba27d1f8844f6adc2 Frontiers in Marine Science, Vol 6 (2019) macroalgae Saccharina Agarum submerged vegetation depth extension Arctic Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2019 ftdoajarticles https://doi.org/10.3389/fmars.2019.00375 2022-12-30T23:07:57Z 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. Article in Journal/Newspaper Arctic Disko Bay Greenland polar night Directory of Open Access Journals: DOAJ Articles Arctic Greenland Frontiers in Marine Science 6 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
macroalgae Saccharina Agarum submerged vegetation depth extension Arctic Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
macroalgae Saccharina Agarum submerged vegetation depth extension Arctic Science Q General. Including nature conservation geographical distribution QH1-199.5 Dorte Krause-Jensen Mikael K. Sejr Annette Bruhn Michael B. Rasmussen Peter Bondo Christensen Jørgen L. S. Hansen Carlos M. Duarte Grethe Bruntse Susse Wegeberg Deep Penetration of Kelps Offshore Along the West Coast of Greenland |
topic_facet |
macroalgae Saccharina Agarum submerged vegetation depth extension Arctic Science Q General. Including nature conservation geographical distribution QH1-199.5 |
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. |
format |
Article in Journal/Newspaper |
author |
Dorte Krause-Jensen Mikael K. Sejr Annette Bruhn Michael B. Rasmussen Peter Bondo Christensen Jørgen L. S. Hansen Carlos M. Duarte Grethe Bruntse Susse Wegeberg |
author_facet |
Dorte Krause-Jensen Mikael K. Sejr Annette Bruhn Michael B. Rasmussen Peter Bondo Christensen Jørgen L. S. Hansen Carlos M. Duarte Grethe Bruntse Susse Wegeberg |
author_sort |
Dorte Krause-Jensen |
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 S.A. |
publishDate |
2019 |
url |
https://doi.org/10.3389/fmars.2019.00375 https://doaj.org/article/a6812d0b065642fba27d1f8844f6adc2 |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Disko Bay Greenland polar night |
genre_facet |
Arctic Disko Bay Greenland polar night |
op_source |
Frontiers in Marine Science, Vol 6 (2019) |
op_relation |
https://www.frontiersin.org/article/10.3389/fmars.2019.00375/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2019.00375 https://doaj.org/article/a6812d0b065642fba27d1f8844f6adc2 |
op_doi |
https://doi.org/10.3389/fmars.2019.00375 |
container_title |
Frontiers in Marine Science |
container_volume |
6 |
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1766321464050450432 |