Macrophyte performance in a low arctic lake: effects of temperature, light and nutrients on growth and depth distribution
Submerged macrophytes are important contributors to primary production in clear water arctic and low arctic lakes. However, their production and potential coverage are hampered by the harsh climate conditions. In this study, we investigated the potential for increased macrophyte production and cover...
Published in: | Aquatic Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2020
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Online Access: | https://pure.au.dk/portal/da/publications/macrophyte-performance-in-a-low-arctic-lake-effects-of-temperature-light-and-nutrients-on-growth-and-depth-distribution(84f38f89-4c64-4856-a0f4-d7607fc6ff6b).html https://doi.org/10.1007/s00027-019-0692-6 http://www.scopus.com/inward/record.url?scp=85077045042&partnerID=8YFLogxK |
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ftuniaarhuspubl:oai:pure.atira.dk:publications/84f38f89-4c64-4856-a0f4-d7607fc6ff6b 2023-05-15T14:25:07+02:00 Macrophyte performance in a low arctic lake: effects of temperature, light and nutrients on growth and depth distribution Lauridsen, Torben Linding Mønster, Tina Raundrup, Katrine Nymand, Josephine Olesen, Birgit 2020 https://pure.au.dk/portal/da/publications/macrophyte-performance-in-a-low-arctic-lake-effects-of-temperature-light-and-nutrients-on-growth-and-depth-distribution(84f38f89-4c64-4856-a0f4-d7607fc6ff6b).html https://doi.org/10.1007/s00027-019-0692-6 http://www.scopus.com/inward/record.url?scp=85077045042&partnerID=8YFLogxK eng eng info:eu-repo/semantics/restrictedAccess Lauridsen , T L , Mønster , T , Raundrup , K , Nymand , J & Olesen , B 2020 , ' Macrophyte performance in a low arctic lake: effects of temperature, light and nutrients on growth and depth distribution ' , Aquatic Sciences , vol. 82 , no. 1 , 18 . https://doi.org/10.1007/s00027-019-0692-6 Callithrice hamulata Climate Greenland Growing season Primary producer Production article 2020 ftuniaarhuspubl https://doi.org/10.1007/s00027-019-0692-6 2020-07-18T22:20:18Z Submerged macrophytes are important contributors to primary production in clear water arctic and low arctic lakes. However, their production and potential coverage are hampered by the harsh climate conditions. In this study, we investigated the potential for increased macrophyte production and coverage in arctic lakes in a future warmer climate. In situ growth experiments with Callitriche hamulata were performed at 2, 4, 8 and 12 m depth in combination with nutrient assay experiments at 2 m depth. In addition, growth experiments were performed in the laboratory at four temperatures (5, 10, 15 and 20 °C) under saturated and light-limited conditions (150 and 25 µmol m −2 s −1 ). The results show that macrophyte growth in the low arctic lake, Badesø, is phosphorus limited, but they also indicate that nutrients are not the limiting factor for the macrophyte depth distribution. Rather the short growing season combined with low summer temperatures may limit the expansion of C. hamulata. Our study also shows that C. hamulata is a very temperature-sensitive plant, particularly around 10 °C. In a future warmer climate in the arctic, the thermocline in clear lakes is expected to expand deeper into the water column. Thus, at the present light conditions we can expect an expansion of both colonisation depth and coverage, which may affect the overall primary production in arctic lakes and the carbon flux and carbon cycling in the lake systems. Our findings strongly support recent predictions of increased growth and a more northerly distribution range of cold-temperature submerged macrophytes. Article in Journal/Newspaper Arctic Arctic Greenland Aarhus University: Research Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Greenland Aquatic Sciences 82 1 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Callithrice hamulata Climate Greenland Growing season Primary producer Production |
spellingShingle |
Callithrice hamulata Climate Greenland Growing season Primary producer Production Lauridsen, Torben Linding Mønster, Tina Raundrup, Katrine Nymand, Josephine Olesen, Birgit Macrophyte performance in a low arctic lake: effects of temperature, light and nutrients on growth and depth distribution |
topic_facet |
Callithrice hamulata Climate Greenland Growing season Primary producer Production |
description |
Submerged macrophytes are important contributors to primary production in clear water arctic and low arctic lakes. However, their production and potential coverage are hampered by the harsh climate conditions. In this study, we investigated the potential for increased macrophyte production and coverage in arctic lakes in a future warmer climate. In situ growth experiments with Callitriche hamulata were performed at 2, 4, 8 and 12 m depth in combination with nutrient assay experiments at 2 m depth. In addition, growth experiments were performed in the laboratory at four temperatures (5, 10, 15 and 20 °C) under saturated and light-limited conditions (150 and 25 µmol m −2 s −1 ). The results show that macrophyte growth in the low arctic lake, Badesø, is phosphorus limited, but they also indicate that nutrients are not the limiting factor for the macrophyte depth distribution. Rather the short growing season combined with low summer temperatures may limit the expansion of C. hamulata. Our study also shows that C. hamulata is a very temperature-sensitive plant, particularly around 10 °C. In a future warmer climate in the arctic, the thermocline in clear lakes is expected to expand deeper into the water column. Thus, at the present light conditions we can expect an expansion of both colonisation depth and coverage, which may affect the overall primary production in arctic lakes and the carbon flux and carbon cycling in the lake systems. Our findings strongly support recent predictions of increased growth and a more northerly distribution range of cold-temperature submerged macrophytes. |
format |
Article in Journal/Newspaper |
author |
Lauridsen, Torben Linding Mønster, Tina Raundrup, Katrine Nymand, Josephine Olesen, Birgit |
author_facet |
Lauridsen, Torben Linding Mønster, Tina Raundrup, Katrine Nymand, Josephine Olesen, Birgit |
author_sort |
Lauridsen, Torben Linding |
title |
Macrophyte performance in a low arctic lake: effects of temperature, light and nutrients on growth and depth distribution |
title_short |
Macrophyte performance in a low arctic lake: effects of temperature, light and nutrients on growth and depth distribution |
title_full |
Macrophyte performance in a low arctic lake: effects of temperature, light and nutrients on growth and depth distribution |
title_fullStr |
Macrophyte performance in a low arctic lake: effects of temperature, light and nutrients on growth and depth distribution |
title_full_unstemmed |
Macrophyte performance in a low arctic lake: effects of temperature, light and nutrients on growth and depth distribution |
title_sort |
macrophyte performance in a low arctic lake: effects of temperature, light and nutrients on growth and depth distribution |
publishDate |
2020 |
url |
https://pure.au.dk/portal/da/publications/macrophyte-performance-in-a-low-arctic-lake-effects-of-temperature-light-and-nutrients-on-growth-and-depth-distribution(84f38f89-4c64-4856-a0f4-d7607fc6ff6b).html https://doi.org/10.1007/s00027-019-0692-6 http://www.scopus.com/inward/record.url?scp=85077045042&partnerID=8YFLogxK |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Arctic Lake Greenland |
geographic_facet |
Arctic Arctic Lake Greenland |
genre |
Arctic Arctic Greenland |
genre_facet |
Arctic Arctic Greenland |
op_source |
Lauridsen , T L , Mønster , T , Raundrup , K , Nymand , J & Olesen , B 2020 , ' Macrophyte performance in a low arctic lake: effects of temperature, light and nutrients on growth and depth distribution ' , Aquatic Sciences , vol. 82 , no. 1 , 18 . https://doi.org/10.1007/s00027-019-0692-6 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00027-019-0692-6 |
container_title |
Aquatic Sciences |
container_volume |
82 |
container_issue |
1 |
_version_ |
1766297556060471296 |