Mysis segerstralei, an unexpected but important prey for resident Arctic charr (Salvelinus alpinus) in a Svalbard lake
Mysis segerstralei is distributed over a wide geographic area and in habitats with a variety of salinity conditions, including marine and brackish waters around Svalbard. The species has seldom been found in freshwater lakes, and the discovery of M. segerstralei in Lake Pulmankijärvi at the border b...
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ftunivmob:oai:nmbu.brage.unit.no:11250/3132068 2024-06-23T07:48:53+00:00 Mysis segerstralei, an unexpected but important prey for resident Arctic charr (Salvelinus alpinus) in a Svalbard lake Svenning, Martin Skogstad, Ole Christiam Skogstad, Øyvind Borgstrøm, Reidar 2024-05-27T16:01:41Z application/pdf https://hdl.handle.net/11250/3132068 https://doi.org/10.1007/s00300-024-03261-w eng eng Norges forskningsråd: 160022/F40 urn:issn:0722-4060 https://hdl.handle.net/11250/3132068 https://doi.org/10.1007/s00300-024-03261-w cristin:2271133 Polar Biology VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Peer reviewed Journal article 2024 ftunivmob https://doi.org/10.1007/s00300-024-03261-w 2024-06-04T14:24:13Z Mysis segerstralei is distributed over a wide geographic area and in habitats with a variety of salinity conditions, including marine and brackish waters around Svalbard. The species has seldom been found in freshwater lakes, and the discovery of M. segerstralei in Lake Pulmankijärvi at the border between Northeastern Norway and Finland, may represent the single known freshwater occurrences in western Europe. Svalbard lake systems are characterized by very low water temperatures, long-term ice cover, and low levels of nutrients. Food is thus limited, and chironomids generally dominate the stomach contents in Arctic charr, the only freshwater fish species on Svalbard. Based on several surveys in more than 30 of Svalbard lakes over many decades, M. segerstralei has only been found as food for Arctic charr in Lake Vårfluesjøen. In a later fishery survey, we studied the diet of Arctic charr in this lake. The stomach contents from Arctic charr sampled in the profundal habitats were dominated by M. segerstralei, but the species was also among the most frequent prey items in the littoral and pelagic habitats. This unexpected occurrence of M. segerstralei demonstrates the high importance of mysids even in a low-productive, High Arctic lake. Glacial relicts · Mysis segerstralei · Arctic charr · Salvelinus alpinus · Svalbard freshwater lakes · High Arctic Mysis segerstralei, an unexpected but important prey for resident Arctic charr (Salvelinus alpinus) in a Svalbard lake publishedVersion Article in Journal/Newspaper Arctic charr Arctic Mysis segerstralei Polar Biology Salvelinus alpinus Svalbard Open archive Norwegian University of Life Sciences: Brage NMBU Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Norway Svalbard Vårfluesjøen ENVELOPE(14.500,14.500,79.667,79.667) Polar Biology |
institution |
Open Polar |
collection |
Open archive Norwegian University of Life Sciences: Brage NMBU |
op_collection_id |
ftunivmob |
language |
English |
topic |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
spellingShingle |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 Svenning, Martin Skogstad, Ole Christiam Skogstad, Øyvind Borgstrøm, Reidar Mysis segerstralei, an unexpected but important prey for resident Arctic charr (Salvelinus alpinus) in a Svalbard lake |
topic_facet |
VDP::Zoologiske og botaniske fag: 480 VDP::Zoology and botany: 480 |
description |
Mysis segerstralei is distributed over a wide geographic area and in habitats with a variety of salinity conditions, including marine and brackish waters around Svalbard. The species has seldom been found in freshwater lakes, and the discovery of M. segerstralei in Lake Pulmankijärvi at the border between Northeastern Norway and Finland, may represent the single known freshwater occurrences in western Europe. Svalbard lake systems are characterized by very low water temperatures, long-term ice cover, and low levels of nutrients. Food is thus limited, and chironomids generally dominate the stomach contents in Arctic charr, the only freshwater fish species on Svalbard. Based on several surveys in more than 30 of Svalbard lakes over many decades, M. segerstralei has only been found as food for Arctic charr in Lake Vårfluesjøen. In a later fishery survey, we studied the diet of Arctic charr in this lake. The stomach contents from Arctic charr sampled in the profundal habitats were dominated by M. segerstralei, but the species was also among the most frequent prey items in the littoral and pelagic habitats. This unexpected occurrence of M. segerstralei demonstrates the high importance of mysids even in a low-productive, High Arctic lake. Glacial relicts · Mysis segerstralei · Arctic charr · Salvelinus alpinus · Svalbard freshwater lakes · High Arctic Mysis segerstralei, an unexpected but important prey for resident Arctic charr (Salvelinus alpinus) in a Svalbard lake publishedVersion |
format |
Article in Journal/Newspaper |
author |
Svenning, Martin Skogstad, Ole Christiam Skogstad, Øyvind Borgstrøm, Reidar |
author_facet |
Svenning, Martin Skogstad, Ole Christiam Skogstad, Øyvind Borgstrøm, Reidar |
author_sort |
Svenning, Martin |
title |
Mysis segerstralei, an unexpected but important prey for resident Arctic charr (Salvelinus alpinus) in a Svalbard lake |
title_short |
Mysis segerstralei, an unexpected but important prey for resident Arctic charr (Salvelinus alpinus) in a Svalbard lake |
title_full |
Mysis segerstralei, an unexpected but important prey for resident Arctic charr (Salvelinus alpinus) in a Svalbard lake |
title_fullStr |
Mysis segerstralei, an unexpected but important prey for resident Arctic charr (Salvelinus alpinus) in a Svalbard lake |
title_full_unstemmed |
Mysis segerstralei, an unexpected but important prey for resident Arctic charr (Salvelinus alpinus) in a Svalbard lake |
title_sort |
mysis segerstralei, an unexpected but important prey for resident arctic charr (salvelinus alpinus) in a svalbard lake |
publishDate |
2024 |
url |
https://hdl.handle.net/11250/3132068 https://doi.org/10.1007/s00300-024-03261-w |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) ENVELOPE(14.500,14.500,79.667,79.667) |
geographic |
Arctic Arctic Lake Norway Svalbard Vårfluesjøen |
geographic_facet |
Arctic Arctic Lake Norway Svalbard Vårfluesjøen |
genre |
Arctic charr Arctic Mysis segerstralei Polar Biology Salvelinus alpinus Svalbard |
genre_facet |
Arctic charr Arctic Mysis segerstralei Polar Biology Salvelinus alpinus Svalbard |
op_source |
Polar Biology |
op_relation |
Norges forskningsråd: 160022/F40 urn:issn:0722-4060 https://hdl.handle.net/11250/3132068 https://doi.org/10.1007/s00300-024-03261-w cristin:2271133 |
op_doi |
https://doi.org/10.1007/s00300-024-03261-w |
container_title |
Polar Biology |
_version_ |
1802639207172145152 |