The structuring role of fish in Greenland lakes:an overview based on contemporary and paleoecological studies of 87 lakes from the low and the high Arctic
Lakes in Greenland are species-poor ecosystems and many are fishless. We studied the structuring role of fish in lakes in high- and low-Arctic Greenland. Major differences were observed in the trophic structure of the 87 lakes studied. Pelagic zooplankton biomass was on average 3-4-fold higher in th...
Published in: | Hydrobiologia |
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2017
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ftuniaarhuspubl:oai:pure.atira.dk:publications/49034dec-bb75-419d-96d8-3f2cbd108b59 2023-12-17T10:23:29+01:00 The structuring role of fish in Greenland lakes:an overview based on contemporary and paleoecological studies of 87 lakes from the low and the high Arctic Jeppesen, Erik Lauridsen, Torben L. Christoffersen, Kirsten S. Landkildehus, Frank Geertz-Hansen, Peter Amsinck, Susanne Lildal Sondergaard, Martin Davidson, Thomas A. Riget, Frank 2017-10 https://pure.au.dk/portal/da/publications/the-structuring-role-of-fish-in-greenland-lakes(49034dec-bb75-419d-96d8-3f2cbd108b59).html https://doi.org/10.1007/s10750-017-3279-z eng eng https://pure.au.dk/portal/da/publications/the-structuring-role-of-fish-in-greenland-lakes(49034dec-bb75-419d-96d8-3f2cbd108b59).html info:eu-repo/semantics/closedAccess Jeppesen , E , Lauridsen , T L , Christoffersen , K S , Landkildehus , F , Geertz-Hansen , P , Amsinck , S L , Sondergaard , M , Davidson , T A & Riget , F 2017 , ' The structuring role of fish in Greenland lakes : an overview based on contemporary and paleoecological studies of 87 lakes from the low and the high Arctic ' , Hydrobiologia , vol. 800 , no. 1 , pp. 99-113 . https://doi.org/10.1007/s10750-017-3279-z Arctic lakes Trophic structure Fish Zooplankton Phytoplankton Ciliates Heterotrophic nanoflagellates Picoalgae Bacterioplankton STICKLEBACK GASTEROSTEUS-ACULEATUS NEW-ZEALAND LAKES TOP-DOWN CONTROL SALVELINUS-ALPINUS MASS REMOVAL TROPHIC INTERACTIONS CRUSTACEAN PLANKTON NUTRIENT STATE SHALLOW article 2017 ftuniaarhuspubl https://doi.org/10.1007/s10750-017-3279-z 2023-11-22T23:59:52Z Lakes in Greenland are species-poor ecosystems and many are fishless. We studied the structuring role of fish in lakes in high- and low-Arctic Greenland. Major differences were observed in the trophic structure of the 87 lakes studied. Pelagic zooplankton biomass was on average 3-4-fold higher in the fishless lakes and dominated by large-bodied taxa such as Daphnia, the phyllopod Branchinecta and the tadpole shrimp Lepidurus. In contrast, small-bodied crustaceans dominated the lakes with fish. Analysis of microcrustacean remains in the surface sediment and contemporary benthic invertebrates also showed a marked influence of fish on community structure and the size of the taxa present. The cascading effect of fish on the microbial communities was modest, and no differences were observed for chlorophyll a. The cascading effect of fish on invertebrates depended, however, on the species present, being largest between fishless lakes and lakes hosting only sticklebacks (Gasterosteus aculeatus), while lakes with both Arctic charr (Salvelinus arcticus) and stickleback revealed a more modest response, indicating that presence of charr modulates the predation effect of sticklebacks. It is predicted that more lakes in Greenland will be colonised by fish in a future warmer climate, and this will substantially alter these vulnerable ecosystems. Article in Journal/Newspaper Arctic Arctic charr Arctic Greenland Phytoplankton Salvelinus alpinus Zooplankton Aarhus University: Research Arctic Greenland New Zealand Tadpole ENVELOPE(-65.317,-65.317,-65.933,-65.933) Hydrobiologia 800 1 99 113 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Arctic lakes Trophic structure Fish Zooplankton Phytoplankton Ciliates Heterotrophic nanoflagellates Picoalgae Bacterioplankton STICKLEBACK GASTEROSTEUS-ACULEATUS NEW-ZEALAND LAKES TOP-DOWN CONTROL SALVELINUS-ALPINUS MASS REMOVAL TROPHIC INTERACTIONS CRUSTACEAN PLANKTON NUTRIENT STATE SHALLOW |
spellingShingle |
Arctic lakes Trophic structure Fish Zooplankton Phytoplankton Ciliates Heterotrophic nanoflagellates Picoalgae Bacterioplankton STICKLEBACK GASTEROSTEUS-ACULEATUS NEW-ZEALAND LAKES TOP-DOWN CONTROL SALVELINUS-ALPINUS MASS REMOVAL TROPHIC INTERACTIONS CRUSTACEAN PLANKTON NUTRIENT STATE SHALLOW Jeppesen, Erik Lauridsen, Torben L. Christoffersen, Kirsten S. Landkildehus, Frank Geertz-Hansen, Peter Amsinck, Susanne Lildal Sondergaard, Martin Davidson, Thomas A. Riget, Frank The structuring role of fish in Greenland lakes:an overview based on contemporary and paleoecological studies of 87 lakes from the low and the high Arctic |
topic_facet |
Arctic lakes Trophic structure Fish Zooplankton Phytoplankton Ciliates Heterotrophic nanoflagellates Picoalgae Bacterioplankton STICKLEBACK GASTEROSTEUS-ACULEATUS NEW-ZEALAND LAKES TOP-DOWN CONTROL SALVELINUS-ALPINUS MASS REMOVAL TROPHIC INTERACTIONS CRUSTACEAN PLANKTON NUTRIENT STATE SHALLOW |
description |
Lakes in Greenland are species-poor ecosystems and many are fishless. We studied the structuring role of fish in lakes in high- and low-Arctic Greenland. Major differences were observed in the trophic structure of the 87 lakes studied. Pelagic zooplankton biomass was on average 3-4-fold higher in the fishless lakes and dominated by large-bodied taxa such as Daphnia, the phyllopod Branchinecta and the tadpole shrimp Lepidurus. In contrast, small-bodied crustaceans dominated the lakes with fish. Analysis of microcrustacean remains in the surface sediment and contemporary benthic invertebrates also showed a marked influence of fish on community structure and the size of the taxa present. The cascading effect of fish on the microbial communities was modest, and no differences were observed for chlorophyll a. The cascading effect of fish on invertebrates depended, however, on the species present, being largest between fishless lakes and lakes hosting only sticklebacks (Gasterosteus aculeatus), while lakes with both Arctic charr (Salvelinus arcticus) and stickleback revealed a more modest response, indicating that presence of charr modulates the predation effect of sticklebacks. It is predicted that more lakes in Greenland will be colonised by fish in a future warmer climate, and this will substantially alter these vulnerable ecosystems. |
format |
Article in Journal/Newspaper |
author |
Jeppesen, Erik Lauridsen, Torben L. Christoffersen, Kirsten S. Landkildehus, Frank Geertz-Hansen, Peter Amsinck, Susanne Lildal Sondergaard, Martin Davidson, Thomas A. Riget, Frank |
author_facet |
Jeppesen, Erik Lauridsen, Torben L. Christoffersen, Kirsten S. Landkildehus, Frank Geertz-Hansen, Peter Amsinck, Susanne Lildal Sondergaard, Martin Davidson, Thomas A. Riget, Frank |
author_sort |
Jeppesen, Erik |
title |
The structuring role of fish in Greenland lakes:an overview based on contemporary and paleoecological studies of 87 lakes from the low and the high Arctic |
title_short |
The structuring role of fish in Greenland lakes:an overview based on contemporary and paleoecological studies of 87 lakes from the low and the high Arctic |
title_full |
The structuring role of fish in Greenland lakes:an overview based on contemporary and paleoecological studies of 87 lakes from the low and the high Arctic |
title_fullStr |
The structuring role of fish in Greenland lakes:an overview based on contemporary and paleoecological studies of 87 lakes from the low and the high Arctic |
title_full_unstemmed |
The structuring role of fish in Greenland lakes:an overview based on contemporary and paleoecological studies of 87 lakes from the low and the high Arctic |
title_sort |
structuring role of fish in greenland lakes:an overview based on contemporary and paleoecological studies of 87 lakes from the low and the high arctic |
publishDate |
2017 |
url |
https://pure.au.dk/portal/da/publications/the-structuring-role-of-fish-in-greenland-lakes(49034dec-bb75-419d-96d8-3f2cbd108b59).html https://doi.org/10.1007/s10750-017-3279-z |
long_lat |
ENVELOPE(-65.317,-65.317,-65.933,-65.933) |
geographic |
Arctic Greenland New Zealand Tadpole |
geographic_facet |
Arctic Greenland New Zealand Tadpole |
genre |
Arctic Arctic charr Arctic Greenland Phytoplankton Salvelinus alpinus Zooplankton |
genre_facet |
Arctic Arctic charr Arctic Greenland Phytoplankton Salvelinus alpinus Zooplankton |
op_source |
Jeppesen , E , Lauridsen , T L , Christoffersen , K S , Landkildehus , F , Geertz-Hansen , P , Amsinck , S L , Sondergaard , M , Davidson , T A & Riget , F 2017 , ' The structuring role of fish in Greenland lakes : an overview based on contemporary and paleoecological studies of 87 lakes from the low and the high Arctic ' , Hydrobiologia , vol. 800 , no. 1 , pp. 99-113 . https://doi.org/10.1007/s10750-017-3279-z |
op_relation |
https://pure.au.dk/portal/da/publications/the-structuring-role-of-fish-in-greenland-lakes(49034dec-bb75-419d-96d8-3f2cbd108b59).html |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1007/s10750-017-3279-z |
container_title |
Hydrobiologia |
container_volume |
800 |
container_issue |
1 |
container_start_page |
99 |
op_container_end_page |
113 |
_version_ |
1785558183147732992 |