Influences of salinity on the physiology and distribution of the Arctic coralline algae, Lithothamnion glaciale (Corallinales, Rhodophyta)
In Greenland, free‐living red coralline algae contribute to and dominate marine habitats along the coastline. Lithothamnion glaciale dominates coralline algae beds in many regions of the Arctic, but never in Godthåbsfjord, Greenland, where Clathromorphum sp. is dominant. To investigate environmental...
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crwiley:10.1111/jpy.12774 2024-09-15T18:02:17+00:00 Influences of salinity on the physiology and distribution of the Arctic coralline algae, Lithothamnion glaciale (Corallinales, Rhodophyta) Schoenrock, Kathryn M. Bacquet, Marion Pearce, Danni Rea, Brice R. Schofield, J. Edward Lea, James Mair, Doug Kamenos, Nicholas Amsler, C. 2018 http://dx.doi.org/10.1111/jpy.12774 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjpy.12774 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jpy.12774 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Phycology volume 54, issue 5, page 690-702 ISSN 0022-3646 1529-8817 journal-article 2018 crwiley https://doi.org/10.1111/jpy.12774 2024-08-20T04:13:41Z In Greenland, free‐living red coralline algae contribute to and dominate marine habitats along the coastline. Lithothamnion glaciale dominates coralline algae beds in many regions of the Arctic, but never in Godthåbsfjord, Greenland, where Clathromorphum sp. is dominant. To investigate environmental impacts on coralline algae distribution, calcification and primary productivity were measured in situ during summers of 2015 and 2016, and annual patterns of productivity in L. glaciale were monitored in laboratory‐based mesocosm experiments where temperature and salinity were manipulated to mimic high glacial melt. The results of field and cold‐room measurements indicate that both L. glaciale and Clathromorphum sp. had low calcification and photosynthetic rates during the Greenland summer (2015 and 2016), with maximum of 1.225 ± 0.17 or 0.002 ± 0.023 μmol Ca CO 3 · g −1 · h −1 and −0.007 ±0.003 or −0.004 ± 0.001 mg O 2 · L −1 · h −1 in each species respectively. Mesocosm experiments indicate L. glaciale is a seasonal responder; photosynthetic and calcification rates increase with annual light cycles. Furthermore, metabolic processes in L. glaciale were negatively influenced by low salinity; positive growth rates only occurred in marine treatments where individuals accumulated an average of 1.85 ± 1.73 mg · d −1 of biomass through summer. These results indicate high freshwater input to the Godthåbsfjord region may drive the low abundance of L . glaciale , and could decrease species distribution as climate change increases freshwater input to the Arctic marine system via enhanced ice sheet runoff and glacier calving. Article in Journal/Newspaper Climate change glacier Godthåbsfjord Greenland Ice Sheet Wiley Online Library Journal of Phycology 54 5 690 702 |
institution |
Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
In Greenland, free‐living red coralline algae contribute to and dominate marine habitats along the coastline. Lithothamnion glaciale dominates coralline algae beds in many regions of the Arctic, but never in Godthåbsfjord, Greenland, where Clathromorphum sp. is dominant. To investigate environmental impacts on coralline algae distribution, calcification and primary productivity were measured in situ during summers of 2015 and 2016, and annual patterns of productivity in L. glaciale were monitored in laboratory‐based mesocosm experiments where temperature and salinity were manipulated to mimic high glacial melt. The results of field and cold‐room measurements indicate that both L. glaciale and Clathromorphum sp. had low calcification and photosynthetic rates during the Greenland summer (2015 and 2016), with maximum of 1.225 ± 0.17 or 0.002 ± 0.023 μmol Ca CO 3 · g −1 · h −1 and −0.007 ±0.003 or −0.004 ± 0.001 mg O 2 · L −1 · h −1 in each species respectively. Mesocosm experiments indicate L. glaciale is a seasonal responder; photosynthetic and calcification rates increase with annual light cycles. Furthermore, metabolic processes in L. glaciale were negatively influenced by low salinity; positive growth rates only occurred in marine treatments where individuals accumulated an average of 1.85 ± 1.73 mg · d −1 of biomass through summer. These results indicate high freshwater input to the Godthåbsfjord region may drive the low abundance of L . glaciale , and could decrease species distribution as climate change increases freshwater input to the Arctic marine system via enhanced ice sheet runoff and glacier calving. |
author2 |
Amsler, C. |
format |
Article in Journal/Newspaper |
author |
Schoenrock, Kathryn M. Bacquet, Marion Pearce, Danni Rea, Brice R. Schofield, J. Edward Lea, James Mair, Doug Kamenos, Nicholas |
spellingShingle |
Schoenrock, Kathryn M. Bacquet, Marion Pearce, Danni Rea, Brice R. Schofield, J. Edward Lea, James Mair, Doug Kamenos, Nicholas Influences of salinity on the physiology and distribution of the Arctic coralline algae, Lithothamnion glaciale (Corallinales, Rhodophyta) |
author_facet |
Schoenrock, Kathryn M. Bacquet, Marion Pearce, Danni Rea, Brice R. Schofield, J. Edward Lea, James Mair, Doug Kamenos, Nicholas |
author_sort |
Schoenrock, Kathryn M. |
title |
Influences of salinity on the physiology and distribution of the Arctic coralline algae, Lithothamnion glaciale (Corallinales, Rhodophyta) |
title_short |
Influences of salinity on the physiology and distribution of the Arctic coralline algae, Lithothamnion glaciale (Corallinales, Rhodophyta) |
title_full |
Influences of salinity on the physiology and distribution of the Arctic coralline algae, Lithothamnion glaciale (Corallinales, Rhodophyta) |
title_fullStr |
Influences of salinity on the physiology and distribution of the Arctic coralline algae, Lithothamnion glaciale (Corallinales, Rhodophyta) |
title_full_unstemmed |
Influences of salinity on the physiology and distribution of the Arctic coralline algae, Lithothamnion glaciale (Corallinales, Rhodophyta) |
title_sort |
influences of salinity on the physiology and distribution of the arctic coralline algae, lithothamnion glaciale (corallinales, rhodophyta) |
publisher |
Wiley |
publishDate |
2018 |
url |
http://dx.doi.org/10.1111/jpy.12774 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjpy.12774 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jpy.12774 |
genre |
Climate change glacier Godthåbsfjord Greenland Ice Sheet |
genre_facet |
Climate change glacier Godthåbsfjord Greenland Ice Sheet |
op_source |
Journal of Phycology volume 54, issue 5, page 690-702 ISSN 0022-3646 1529-8817 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jpy.12774 |
container_title |
Journal of Phycology |
container_volume |
54 |
container_issue |
5 |
container_start_page |
690 |
op_container_end_page |
702 |
_version_ |
1810439748264656896 |