Rhodolith beds (Corallinales, Rhodophyta) and their physical and biological environment at 80°31'N in Nordkappbukta (Nordaustlandet, Svalbard Archipelago, Norway)
Polar coralline red algae (Corallinales, Rhodophyta) that form rhodoliths have received little attention concerning their potential as ecosystem engineers and carbonate factories; although, recent findings revealed that they are much more widespread in polar waters than previously thought. The prese...
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2012
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ftvliz:oai:oma.vliz.be:238495 2023-05-15T15:00:46+02:00 Rhodolith beds (Corallinales, Rhodophyta) and their physical and biological environment at 80°31'N in Nordkappbukta (Nordaustlandet, Svalbard Archipelago, Norway) Teichert, S. Woelkerling, W. Rüggeberg, A. Wisshak, M. Piepenburg, D. Meyerhofer, M. Form, A. Budenbender, J. Freiwald, A. 2012 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238495 en eng info:eu-repo/semantics/altIdentifier/wos/000306303200002 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.2216/11-76.1 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238495 info:eu-repo/semantics/restrictedAccess %3Ci%3EPhycologia+51%284%29%3C%2Fi%3E%3A+371-390.+%3Ca+href%3D%22https%3A%2F%2Fdx.doi.org%2F10.2216%2F11-76.1%22+target%3D%22_blank%22%3Ehttps%3A%2F%2Fdx.doi.org%2F10.2216%2F11-76.1%3C%2Fa%3E Lithothamnion glaciale Phymatolithon tenue info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2012 ftvliz https://doi.org/10.2216/11-76.1 2022-05-01T10:15:52Z Polar coralline red algae (Corallinales, Rhodophyta) that form rhodoliths have received little attention concerning their potential as ecosystem engineers and carbonate factories; although, recent findings revealed that they are much more widespread in polar waters than previously thought. The present study deals with the northernmost rhodolith communities currently known, discovered in 2006 at 80°31'N in Nordkappbukta (North Cape Bay) at Nordaustlandet, Svalbard. These perennial coralline algae must be adapted to extreme seasonality in terms of light regime ( c. 4 months winter darkness), sea ice coverage, nutrient supply, turbidity of the water column, temperature and salinity. The rhodolith communities and their environment were investigated using multibeam swath bathymetry, CTD measurements, recordings of the photosynthetic active radiation (PAR) and determination of the water chemistry, seabed imaging and targeted sampling by means of the manned submersible JAGO as well as benthic collections with a dredge. The coralline flora was composed mainly of Lithothamnion glaciale , with a lesser amount of Phymatolithon tenue . Based on their distribution and development at different depth levels, a facies model was developed. Rhodoliths occurred between 30 and 51 m, while coralline algae attached to cobbles were present as deep as 78 m. Measurements of the PAR indicated their adaptation to extreme low light levels. Ambient waters were always saturated with reference to calcite and aragonite for the whole area. The rhodolith-associated macrobenthic fauna samples yielded 59 species, only one of which was typically Arctic, and the concomitant appearance of corallines and grazers kept the corallines free from epiphytes and coequally provided feeding grounds for the grazers. Overall, L. glaciale and P. tenue appeared to be well adapted to the extreme environment of the Arctic. Article in Journal/Newspaper Arctic Nordaustlandet North Cape Sea ice Svalbard Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) Arctic Nordaustlandet ENVELOPE(22.400,22.400,79.800,79.800) North Cape ENVELOPE(165.700,165.700,-70.650,-70.650) Norway Svalbard Svalbard Archipelago Phycologia 51 4 371 390 |
institution |
Open Polar |
collection |
Flanders Marine Institute (VLIZ): Open Marine Archive (OMA) |
op_collection_id |
ftvliz |
language |
English |
topic |
Lithothamnion glaciale Phymatolithon tenue |
spellingShingle |
Lithothamnion glaciale Phymatolithon tenue Teichert, S. Woelkerling, W. Rüggeberg, A. Wisshak, M. Piepenburg, D. Meyerhofer, M. Form, A. Budenbender, J. Freiwald, A. Rhodolith beds (Corallinales, Rhodophyta) and their physical and biological environment at 80°31'N in Nordkappbukta (Nordaustlandet, Svalbard Archipelago, Norway) |
topic_facet |
Lithothamnion glaciale Phymatolithon tenue |
description |
Polar coralline red algae (Corallinales, Rhodophyta) that form rhodoliths have received little attention concerning their potential as ecosystem engineers and carbonate factories; although, recent findings revealed that they are much more widespread in polar waters than previously thought. The present study deals with the northernmost rhodolith communities currently known, discovered in 2006 at 80°31'N in Nordkappbukta (North Cape Bay) at Nordaustlandet, Svalbard. These perennial coralline algae must be adapted to extreme seasonality in terms of light regime ( c. 4 months winter darkness), sea ice coverage, nutrient supply, turbidity of the water column, temperature and salinity. The rhodolith communities and their environment were investigated using multibeam swath bathymetry, CTD measurements, recordings of the photosynthetic active radiation (PAR) and determination of the water chemistry, seabed imaging and targeted sampling by means of the manned submersible JAGO as well as benthic collections with a dredge. The coralline flora was composed mainly of Lithothamnion glaciale , with a lesser amount of Phymatolithon tenue . Based on their distribution and development at different depth levels, a facies model was developed. Rhodoliths occurred between 30 and 51 m, while coralline algae attached to cobbles were present as deep as 78 m. Measurements of the PAR indicated their adaptation to extreme low light levels. Ambient waters were always saturated with reference to calcite and aragonite for the whole area. The rhodolith-associated macrobenthic fauna samples yielded 59 species, only one of which was typically Arctic, and the concomitant appearance of corallines and grazers kept the corallines free from epiphytes and coequally provided feeding grounds for the grazers. Overall, L. glaciale and P. tenue appeared to be well adapted to the extreme environment of the Arctic. |
format |
Article in Journal/Newspaper |
author |
Teichert, S. Woelkerling, W. Rüggeberg, A. Wisshak, M. Piepenburg, D. Meyerhofer, M. Form, A. Budenbender, J. Freiwald, A. |
author_facet |
Teichert, S. Woelkerling, W. Rüggeberg, A. Wisshak, M. Piepenburg, D. Meyerhofer, M. Form, A. Budenbender, J. Freiwald, A. |
author_sort |
Teichert, S. |
title |
Rhodolith beds (Corallinales, Rhodophyta) and their physical and biological environment at 80°31'N in Nordkappbukta (Nordaustlandet, Svalbard Archipelago, Norway) |
title_short |
Rhodolith beds (Corallinales, Rhodophyta) and their physical and biological environment at 80°31'N in Nordkappbukta (Nordaustlandet, Svalbard Archipelago, Norway) |
title_full |
Rhodolith beds (Corallinales, Rhodophyta) and their physical and biological environment at 80°31'N in Nordkappbukta (Nordaustlandet, Svalbard Archipelago, Norway) |
title_fullStr |
Rhodolith beds (Corallinales, Rhodophyta) and their physical and biological environment at 80°31'N in Nordkappbukta (Nordaustlandet, Svalbard Archipelago, Norway) |
title_full_unstemmed |
Rhodolith beds (Corallinales, Rhodophyta) and their physical and biological environment at 80°31'N in Nordkappbukta (Nordaustlandet, Svalbard Archipelago, Norway) |
title_sort |
rhodolith beds (corallinales, rhodophyta) and their physical and biological environment at 80°31'n in nordkappbukta (nordaustlandet, svalbard archipelago, norway) |
publishDate |
2012 |
url |
http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238495 |
long_lat |
ENVELOPE(22.400,22.400,79.800,79.800) ENVELOPE(165.700,165.700,-70.650,-70.650) |
geographic |
Arctic Nordaustlandet North Cape Norway Svalbard Svalbard Archipelago |
geographic_facet |
Arctic Nordaustlandet North Cape Norway Svalbard Svalbard Archipelago |
genre |
Arctic Nordaustlandet North Cape Sea ice Svalbard |
genre_facet |
Arctic Nordaustlandet North Cape Sea ice Svalbard |
op_source |
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op_relation |
info:eu-repo/semantics/altIdentifier/wos/000306303200002 info:eu-repo/semantics/altIdentifier/doi/doi.org/10.2216/11-76.1 http://www.vliz.be/nl/open-marien-archief?module=ref&refid=238495 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.2216/11-76.1 |
container_title |
Phycologia |
container_volume |
51 |
container_issue |
4 |
container_start_page |
371 |
op_container_end_page |
390 |
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1766332832986169344 |