Thermal habitat use and juvenile growth of Svalbard Arctic charr: evidence from otolith stable oxygen isotope analyses
Abstract – Stable oxygen isotopes (δ 18 O) derived from otoliths were used to estimate mean annual water temperatures experienced by individual Svalbard Arctic charr, Salvelinus alpinus (L.), during their first four growth seasons. The analysed Arctic charr experienced a high variety of temperatures...
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crwiley:10.1111/j.1600-0633.2011.00533.x 2023-12-03T10:15:25+01:00 Thermal habitat use and juvenile growth of Svalbard Arctic charr: evidence from otolith stable oxygen isotope analyses Godiksen, Jane A. Power, Michael Borgstrøm, Reidar Dempson, J. Brian Svenning, Martin A. 2011 http://dx.doi.org/10.1111/j.1600-0633.2011.00533.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.2011.00533.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.2011.00533.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecology of Freshwater Fish volume 21, issue 1, page 134-144 ISSN 0906-6691 1600-0633 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2011 crwiley https://doi.org/10.1111/j.1600-0633.2011.00533.x 2023-11-09T14:11:11Z Abstract – Stable oxygen isotopes (δ 18 O) derived from otoliths were used to estimate mean annual water temperatures experienced by individual Svalbard Arctic charr, Salvelinus alpinus (L.), during their first four growth seasons. The analysed Arctic charr experienced a high variety of temperatures, indicating the use of different thermal habitats. A higher proportion of the juveniles experienced warmer temperatures during their first summer compared with later summers, suggesting the selective use of the shallowest littoral areas of the lake. Although the estimated temperatures were consistent with water temperatures found in High Arctic rivers and lakes during summer, they did not represent the annual variation in air temperature registered over the 20 years of otolith measurement. Furthermore, summer otolith increment width did not correlate with the experienced temperature. However, after the second year, otolith increment width was highly dependent on increment width during the previous summer. This study estimated mean summer water temperatures experienced by individual Arctic charr during the first four growth seasons providing additional evidence that stable oxygen isotope analysis can be used to provide insight into the thermal habitat use by juvenile Arctic charr. Article in Journal/Newspaper Arctic charr Arctic Salvelinus alpinus Svalbard Wiley Online Library (via Crossref) Arctic Svalbard Ecology of Freshwater Fish 21 1 134 144 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Godiksen, Jane A. Power, Michael Borgstrøm, Reidar Dempson, J. Brian Svenning, Martin A. Thermal habitat use and juvenile growth of Svalbard Arctic charr: evidence from otolith stable oxygen isotope analyses |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract – Stable oxygen isotopes (δ 18 O) derived from otoliths were used to estimate mean annual water temperatures experienced by individual Svalbard Arctic charr, Salvelinus alpinus (L.), during their first four growth seasons. The analysed Arctic charr experienced a high variety of temperatures, indicating the use of different thermal habitats. A higher proportion of the juveniles experienced warmer temperatures during their first summer compared with later summers, suggesting the selective use of the shallowest littoral areas of the lake. Although the estimated temperatures were consistent with water temperatures found in High Arctic rivers and lakes during summer, they did not represent the annual variation in air temperature registered over the 20 years of otolith measurement. Furthermore, summer otolith increment width did not correlate with the experienced temperature. However, after the second year, otolith increment width was highly dependent on increment width during the previous summer. This study estimated mean summer water temperatures experienced by individual Arctic charr during the first four growth seasons providing additional evidence that stable oxygen isotope analysis can be used to provide insight into the thermal habitat use by juvenile Arctic charr. |
format |
Article in Journal/Newspaper |
author |
Godiksen, Jane A. Power, Michael Borgstrøm, Reidar Dempson, J. Brian Svenning, Martin A. |
author_facet |
Godiksen, Jane A. Power, Michael Borgstrøm, Reidar Dempson, J. Brian Svenning, Martin A. |
author_sort |
Godiksen, Jane A. |
title |
Thermal habitat use and juvenile growth of Svalbard Arctic charr: evidence from otolith stable oxygen isotope analyses |
title_short |
Thermal habitat use and juvenile growth of Svalbard Arctic charr: evidence from otolith stable oxygen isotope analyses |
title_full |
Thermal habitat use and juvenile growth of Svalbard Arctic charr: evidence from otolith stable oxygen isotope analyses |
title_fullStr |
Thermal habitat use and juvenile growth of Svalbard Arctic charr: evidence from otolith stable oxygen isotope analyses |
title_full_unstemmed |
Thermal habitat use and juvenile growth of Svalbard Arctic charr: evidence from otolith stable oxygen isotope analyses |
title_sort |
thermal habitat use and juvenile growth of svalbard arctic charr: evidence from otolith stable oxygen isotope analyses |
publisher |
Wiley |
publishDate |
2011 |
url |
http://dx.doi.org/10.1111/j.1600-0633.2011.00533.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.2011.00533.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.2011.00533.x |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic charr Arctic Salvelinus alpinus Svalbard |
genre_facet |
Arctic charr Arctic Salvelinus alpinus Svalbard |
op_source |
Ecology of Freshwater Fish volume 21, issue 1, page 134-144 ISSN 0906-6691 1600-0633 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-0633.2011.00533.x |
container_title |
Ecology of Freshwater Fish |
container_volume |
21 |
container_issue |
1 |
container_start_page |
134 |
op_container_end_page |
144 |
_version_ |
1784262324264108032 |