Experimental evidence for paternal effects on offspring growth rate in Arctic charr ( Salvelinus alpinus )
Sexual selection theory predicts that females should choose males that signal viability and quality. However, few studies have found fitness benefits among females mating with highly ornamented males. Here, we use Arctic charr ( Salvelinus alpinus ), a teleost fish with no parental care, to investig...
Published in: | Proceedings of the Royal Society B: Biological Sciences |
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Online Access: | http://dx.doi.org/10.1098/rspb.2008.0884 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2008.0884 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2008.0884 |
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crroyalsociety:10.1098/rspb.2008.0884 2024-09-15T17:52:21+00:00 Experimental evidence for paternal effects on offspring growth rate in Arctic charr ( Salvelinus alpinus ) Eilertsen, Eirik Mack Bårdsen, Bård-Jørgen Liljedal, Ståle Rudolfsen, Geir Folstad, Ivar 2008 http://dx.doi.org/10.1098/rspb.2008.0884 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2008.0884 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2008.0884 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Proceedings of the Royal Society B: Biological Sciences volume 276, issue 1654, page 129-136 ISSN 0962-8452 1471-2954 journal-article 2008 crroyalsociety https://doi.org/10.1098/rspb.2008.0884 2024-07-22T04:27:23Z Sexual selection theory predicts that females should choose males that signal viability and quality. However, few studies have found fitness benefits among females mating with highly ornamented males. Here, we use Arctic charr ( Salvelinus alpinus ), a teleost fish with no parental care, to investigate whether females could gain fitness benefits by mating with highly ornamented and large-sized males. Carotenoid-based coloration signalled by males during spawning is believed to be an indicator of good genes for this species. Paternal effects on offspring size (body length and dry body mass) were examined experimentally by crossing eggs and sperm in vitro from 12 females and 24 males in a split-brood design and raising larvae to 30 days past hatching. We clearly demonstrated that there was a relationship between offspring size and paternal coloration. However, a negative interaction between paternal length and coloration was evident for offspring length, indicating that positive effects of paternal coloration were only present for smaller males. Thus, the red spawning coloration of the male Arctic charr seems to be an indicator of good genes, but the effect of paternal coloration on offspring length, an indicator of ‘offspring quality’, is size dependent. Article in Journal/Newspaper Arctic charr Salvelinus alpinus The Royal Society Proceedings of the Royal Society B: Biological Sciences 276 1654 129 136 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Sexual selection theory predicts that females should choose males that signal viability and quality. However, few studies have found fitness benefits among females mating with highly ornamented males. Here, we use Arctic charr ( Salvelinus alpinus ), a teleost fish with no parental care, to investigate whether females could gain fitness benefits by mating with highly ornamented and large-sized males. Carotenoid-based coloration signalled by males during spawning is believed to be an indicator of good genes for this species. Paternal effects on offspring size (body length and dry body mass) were examined experimentally by crossing eggs and sperm in vitro from 12 females and 24 males in a split-brood design and raising larvae to 30 days past hatching. We clearly demonstrated that there was a relationship between offspring size and paternal coloration. However, a negative interaction between paternal length and coloration was evident for offspring length, indicating that positive effects of paternal coloration were only present for smaller males. Thus, the red spawning coloration of the male Arctic charr seems to be an indicator of good genes, but the effect of paternal coloration on offspring length, an indicator of ‘offspring quality’, is size dependent. |
format |
Article in Journal/Newspaper |
author |
Eilertsen, Eirik Mack Bårdsen, Bård-Jørgen Liljedal, Ståle Rudolfsen, Geir Folstad, Ivar |
spellingShingle |
Eilertsen, Eirik Mack Bårdsen, Bård-Jørgen Liljedal, Ståle Rudolfsen, Geir Folstad, Ivar Experimental evidence for paternal effects on offspring growth rate in Arctic charr ( Salvelinus alpinus ) |
author_facet |
Eilertsen, Eirik Mack Bårdsen, Bård-Jørgen Liljedal, Ståle Rudolfsen, Geir Folstad, Ivar |
author_sort |
Eilertsen, Eirik Mack |
title |
Experimental evidence for paternal effects on offspring growth rate in Arctic charr ( Salvelinus alpinus ) |
title_short |
Experimental evidence for paternal effects on offspring growth rate in Arctic charr ( Salvelinus alpinus ) |
title_full |
Experimental evidence for paternal effects on offspring growth rate in Arctic charr ( Salvelinus alpinus ) |
title_fullStr |
Experimental evidence for paternal effects on offspring growth rate in Arctic charr ( Salvelinus alpinus ) |
title_full_unstemmed |
Experimental evidence for paternal effects on offspring growth rate in Arctic charr ( Salvelinus alpinus ) |
title_sort |
experimental evidence for paternal effects on offspring growth rate in arctic charr ( salvelinus alpinus ) |
publisher |
The Royal Society |
publishDate |
2008 |
url |
http://dx.doi.org/10.1098/rspb.2008.0884 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2008.0884 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2008.0884 |
genre |
Arctic charr Salvelinus alpinus |
genre_facet |
Arctic charr Salvelinus alpinus |
op_source |
Proceedings of the Royal Society B: Biological Sciences volume 276, issue 1654, page 129-136 ISSN 0962-8452 1471-2954 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rspb.2008.0884 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
276 |
container_issue |
1654 |
container_start_page |
129 |
op_container_end_page |
136 |
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1810294402107572224 |