Interactive Effects of Lake Morphometry and Sticklebacks on the Trophic Position of Arctic charr, Salvelinus alpinus (L.), across Lakes in Western Greenland
The structure and functioning of Arctic ecosystems have been drastically modified by global warming, with fish species potentially performing habitat shifts such as the northern expansion of generalist and warm-adapted species. The freshwater fish species Arctic charr (Salvelinus alpinus, hereafter...
Published in: | Journal of Limnology and Freshwater Fisheries Research |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Eğirdir Su Ürünleri Araştırma Enstitü Müdürlüğü
2021
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Online Access: | https://dergipark.org.tr/tr/pub/limnofish/issue/71305/1020722 https://doi.org/10.17216/limnofish.1020722 |
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ftdergipark2ojs:oai:dergipark.org.tr:article/1020722 2023-05-15T14:30:06+02:00 Interactive Effects of Lake Morphometry and Sticklebacks on the Trophic Position of Arctic charr, Salvelinus alpinus (L.), across Lakes in Western Greenland ARRANZ, Ignasi DAVİDSON, Thomas Alexander BENEJAM, Lluís BRUCET, Sandra SÁNCHEZ-HERNÁNDEZ, Javier LANDKİLDEHUS, Frank LAURİDSEN, Torben MAZZEO, Nestor VİDAL, Nicolas ÖZKAN, Korhan GALLEGO, Irene WİSCHNEWSKİ, Juliane MENEZES, Rosemberg SHURKHUU, Tserenpil JEPPESEN, Erik 2021-11-23 application/pdf https://dergipark.org.tr/tr/pub/limnofish/issue/71305/1020722 https://doi.org/10.17216/limnofish.1020722 eng eng Eğirdir Su Ürünleri Araştırma Enstitü Müdürlüğü Egirdir Fisheries Research Institute https://dergipark.org.tr/tr/download/article-file/2070037 https://dergipark.org.tr/tr/pub/limnofish/issue/71305/1020722 doi:10.17216/limnofish.1020722 Volume: 8, Issue: 2 101-115 2149-4428 Journal of Limnology and Freshwater Fisheries Research ecosystem size;food webs;polar regions;predator-prey interactions;salmonids Fen Science info:eu-repo/semantics/article 2021 ftdergipark2ojs https://doi.org/10.17216/limnofish.1020722 2022-09-01T17:02:26Z The structure and functioning of Arctic ecosystems have been drastically modified by global warming, with fish species potentially performing habitat shifts such as the northern expansion of generalist and warm-adapted species. The freshwater fish species Arctic charr (Salvelinus alpinus, hereafter charr) plays a key role in Arctic lake food webs, but sticklebacks (Gasterosteus aculeatus) may impact the trophic position (TP) of charr by affecting their habitat choice and food resources. In the present study, we used multiple regression analyses to examine the role of lake morphology (i.e., depth and area) and the influence of sticklebacks on the TP of charr (estimated from δ15N and δ13C) sampled in nine Arctic lakes in Western Greenland between 2011 and 2013. Results showed that charr populations exhibited larger TP values when co-occurring with sticklebacks. Specifically, for larger and deeper lakes, a significant positive effect on TP values was observed for medium-sized (25 to 35 cm) charr. Moreover, the TP of sticklebacks had a null effect on the TP values of the largest charr (> 40 cm), suggesting that the largest-sized charr individuals did not prey on sticklebacks. We conclude that charr undergoes flexible ontogenetic trophic trajectories depending on the species composition of the Arctic fish community structure (here presence or absence of sticklebacks) and abiotic lake features. Article in Journal/Newspaper Arctic charr Arctic Global warming Greenland Salvelinus alpinus DergiPark Akademik (E-Journals) Arctic Greenland Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Journal of Limnology and Freshwater Fisheries Research |
institution |
Open Polar |
collection |
DergiPark Akademik (E-Journals) |
op_collection_id |
ftdergipark2ojs |
language |
English |
topic |
ecosystem size;food webs;polar regions;predator-prey interactions;salmonids Fen Science |
spellingShingle |
ecosystem size;food webs;polar regions;predator-prey interactions;salmonids Fen Science ARRANZ, Ignasi DAVİDSON, Thomas Alexander BENEJAM, Lluís BRUCET, Sandra SÁNCHEZ-HERNÁNDEZ, Javier LANDKİLDEHUS, Frank LAURİDSEN, Torben MAZZEO, Nestor VİDAL, Nicolas ÖZKAN, Korhan GALLEGO, Irene WİSCHNEWSKİ, Juliane MENEZES, Rosemberg SHURKHUU, Tserenpil JEPPESEN, Erik Interactive Effects of Lake Morphometry and Sticklebacks on the Trophic Position of Arctic charr, Salvelinus alpinus (L.), across Lakes in Western Greenland |
topic_facet |
ecosystem size;food webs;polar regions;predator-prey interactions;salmonids Fen Science |
description |
The structure and functioning of Arctic ecosystems have been drastically modified by global warming, with fish species potentially performing habitat shifts such as the northern expansion of generalist and warm-adapted species. The freshwater fish species Arctic charr (Salvelinus alpinus, hereafter charr) plays a key role in Arctic lake food webs, but sticklebacks (Gasterosteus aculeatus) may impact the trophic position (TP) of charr by affecting their habitat choice and food resources. In the present study, we used multiple regression analyses to examine the role of lake morphology (i.e., depth and area) and the influence of sticklebacks on the TP of charr (estimated from δ15N and δ13C) sampled in nine Arctic lakes in Western Greenland between 2011 and 2013. Results showed that charr populations exhibited larger TP values when co-occurring with sticklebacks. Specifically, for larger and deeper lakes, a significant positive effect on TP values was observed for medium-sized (25 to 35 cm) charr. Moreover, the TP of sticklebacks had a null effect on the TP values of the largest charr (> 40 cm), suggesting that the largest-sized charr individuals did not prey on sticklebacks. We conclude that charr undergoes flexible ontogenetic trophic trajectories depending on the species composition of the Arctic fish community structure (here presence or absence of sticklebacks) and abiotic lake features. |
format |
Article in Journal/Newspaper |
author |
ARRANZ, Ignasi DAVİDSON, Thomas Alexander BENEJAM, Lluís BRUCET, Sandra SÁNCHEZ-HERNÁNDEZ, Javier LANDKİLDEHUS, Frank LAURİDSEN, Torben MAZZEO, Nestor VİDAL, Nicolas ÖZKAN, Korhan GALLEGO, Irene WİSCHNEWSKİ, Juliane MENEZES, Rosemberg SHURKHUU, Tserenpil JEPPESEN, Erik |
author_facet |
ARRANZ, Ignasi DAVİDSON, Thomas Alexander BENEJAM, Lluís BRUCET, Sandra SÁNCHEZ-HERNÁNDEZ, Javier LANDKİLDEHUS, Frank LAURİDSEN, Torben MAZZEO, Nestor VİDAL, Nicolas ÖZKAN, Korhan GALLEGO, Irene WİSCHNEWSKİ, Juliane MENEZES, Rosemberg SHURKHUU, Tserenpil JEPPESEN, Erik |
author_sort |
ARRANZ, Ignasi |
title |
Interactive Effects of Lake Morphometry and Sticklebacks on the Trophic Position of Arctic charr, Salvelinus alpinus (L.), across Lakes in Western Greenland |
title_short |
Interactive Effects of Lake Morphometry and Sticklebacks on the Trophic Position of Arctic charr, Salvelinus alpinus (L.), across Lakes in Western Greenland |
title_full |
Interactive Effects of Lake Morphometry and Sticklebacks on the Trophic Position of Arctic charr, Salvelinus alpinus (L.), across Lakes in Western Greenland |
title_fullStr |
Interactive Effects of Lake Morphometry and Sticklebacks on the Trophic Position of Arctic charr, Salvelinus alpinus (L.), across Lakes in Western Greenland |
title_full_unstemmed |
Interactive Effects of Lake Morphometry and Sticklebacks on the Trophic Position of Arctic charr, Salvelinus alpinus (L.), across Lakes in Western Greenland |
title_sort |
interactive effects of lake morphometry and sticklebacks on the trophic position of arctic charr, salvelinus alpinus (l.), across lakes in western greenland |
publisher |
Eğirdir Su Ürünleri Araştırma Enstitü Müdürlüğü |
publishDate |
2021 |
url |
https://dergipark.org.tr/tr/pub/limnofish/issue/71305/1020722 https://doi.org/10.17216/limnofish.1020722 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Greenland Arctic Lake |
geographic_facet |
Arctic Greenland Arctic Lake |
genre |
Arctic charr Arctic Global warming Greenland Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Global warming Greenland Salvelinus alpinus |
op_source |
Volume: 8, Issue: 2 101-115 2149-4428 Journal of Limnology and Freshwater Fisheries Research |
op_relation |
https://dergipark.org.tr/tr/download/article-file/2070037 https://dergipark.org.tr/tr/pub/limnofish/issue/71305/1020722 doi:10.17216/limnofish.1020722 |
op_doi |
https://doi.org/10.17216/limnofish.1020722 |
container_title |
Journal of Limnology and Freshwater Fisheries Research |
_version_ |
1766304022108569600 |