Morphological variability among three geographically distinct Arctic charr ( Salvelinus alpinus L.) populations reared in a common hatchery environment
Abstract – The morphology of three lake‐resident Arctic charr, Salvelinus alpinus , populations was studied at two life‐history stages in a common‐garden experiment. The fish of the same year class were reared under standard hatchery conditions, and 27 morphometric variables (a truss network) were m...
Published in: | Ecology of Freshwater Fish |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2009
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1600-0633.2008.00329.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.2008.00329.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.2008.00329.x |
id |
crwiley:10.1111/j.1600-0633.2008.00329.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1600-0633.2008.00329.x 2023-12-03T10:15:27+01:00 Morphological variability among three geographically distinct Arctic charr ( Salvelinus alpinus L.) populations reared in a common hatchery environment Janhunen, M. Peuhkuri, N. Piironen, J. 2009 http://dx.doi.org/10.1111/j.1600-0633.2008.00329.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.2008.00329.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.2008.00329.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Ecology of Freshwater Fish volume 18, issue 1, page 106-116 ISSN 0906-6691 1600-0633 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2009 crwiley https://doi.org/10.1111/j.1600-0633.2008.00329.x 2023-11-09T13:37:05Z Abstract – The morphology of three lake‐resident Arctic charr, Salvelinus alpinus , populations was studied at two life‐history stages in a common‐garden experiment. The fish of the same year class were reared under standard hatchery conditions, and 27 morphometric variables (a truss network) were measured from the sampled individuals. Most of the total variation was explained by the overall body robustness, dimensions of the head and caudal peduncle length. After controlling for a body size, significant heterogeneity in body shape was found among populations at both ages. Independent of age, the populations were morphologically highly distinct, although some integration of characters could be found as the fish reached sexual maturity. Sexual divergence accounted for a large part of the within‐population shape variation, the mature males having more robust bodies, larger head dimensions and longer pectoral fins compared with the mature females/immature fish. Although the cultured fish may not be totally representative of their wild counterparts, it is reasonable to expect that the observed morphological differences have a genetic basis, presumably reflecting adaptation to local environmental conditions experienced by the charr in their original habitat. Article in Journal/Newspaper Arctic charr Arctic Salvelinus alpinus Wiley Online Library (via Crossref) Arctic Ecology of Freshwater Fish 18 1 106 116 |
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 Janhunen, M. Peuhkuri, N. Piironen, J. Morphological variability among three geographically distinct Arctic charr ( Salvelinus alpinus L.) populations reared in a common hatchery environment |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Abstract – The morphology of three lake‐resident Arctic charr, Salvelinus alpinus , populations was studied at two life‐history stages in a common‐garden experiment. The fish of the same year class were reared under standard hatchery conditions, and 27 morphometric variables (a truss network) were measured from the sampled individuals. Most of the total variation was explained by the overall body robustness, dimensions of the head and caudal peduncle length. After controlling for a body size, significant heterogeneity in body shape was found among populations at both ages. Independent of age, the populations were morphologically highly distinct, although some integration of characters could be found as the fish reached sexual maturity. Sexual divergence accounted for a large part of the within‐population shape variation, the mature males having more robust bodies, larger head dimensions and longer pectoral fins compared with the mature females/immature fish. Although the cultured fish may not be totally representative of their wild counterparts, it is reasonable to expect that the observed morphological differences have a genetic basis, presumably reflecting adaptation to local environmental conditions experienced by the charr in their original habitat. |
format |
Article in Journal/Newspaper |
author |
Janhunen, M. Peuhkuri, N. Piironen, J. |
author_facet |
Janhunen, M. Peuhkuri, N. Piironen, J. |
author_sort |
Janhunen, M. |
title |
Morphological variability among three geographically distinct Arctic charr ( Salvelinus alpinus L.) populations reared in a common hatchery environment |
title_short |
Morphological variability among three geographically distinct Arctic charr ( Salvelinus alpinus L.) populations reared in a common hatchery environment |
title_full |
Morphological variability among three geographically distinct Arctic charr ( Salvelinus alpinus L.) populations reared in a common hatchery environment |
title_fullStr |
Morphological variability among three geographically distinct Arctic charr ( Salvelinus alpinus L.) populations reared in a common hatchery environment |
title_full_unstemmed |
Morphological variability among three geographically distinct Arctic charr ( Salvelinus alpinus L.) populations reared in a common hatchery environment |
title_sort |
morphological variability among three geographically distinct arctic charr ( salvelinus alpinus l.) populations reared in a common hatchery environment |
publisher |
Wiley |
publishDate |
2009 |
url |
http://dx.doi.org/10.1111/j.1600-0633.2008.00329.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1600-0633.2008.00329.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1600-0633.2008.00329.x |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_source |
Ecology of Freshwater Fish volume 18, issue 1, page 106-116 ISSN 0906-6691 1600-0633 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1600-0633.2008.00329.x |
container_title |
Ecology of Freshwater Fish |
container_volume |
18 |
container_issue |
1 |
container_start_page |
106 |
op_container_end_page |
116 |
_version_ |
1784262374098731008 |