Growth potential can affect timing of maturity in a long-lived semelparous fish
Many diadromous fishes such as salmon and eels that move between freshwater and the ocean have evolved semelparous reproductive strategies, but both groups display considerable plasticity in characteristics. Factors such as population density and growth, predation risk or reproduction cost have been...
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crroyalsociety:10.1098/rsbl.2018.0269 2024-10-13T14:01:23+00:00 Growth potential can affect timing of maturity in a long-lived semelparous fish Yokouchi, Kazuki Daverat, Françoise Miller, Michael J. Fukuda, Nobuto Sudo, Ryusuke Tsukamoto, Katsumi Elie, Pierre Poole, W. Russell FRA and a Research Fellowship 2018 http://dx.doi.org/10.1098/rsbl.2018.0269 https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2018.0269 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsbl.2018.0269 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Biology Letters volume 14, issue 7, page 20180269 ISSN 1744-9561 1744-957X journal-article 2018 crroyalsociety https://doi.org/10.1098/rsbl.2018.0269 2024-09-23T04:22:17Z Many diadromous fishes such as salmon and eels that move between freshwater and the ocean have evolved semelparous reproductive strategies, but both groups display considerable plasticity in characteristics. Factors such as population density and growth, predation risk or reproduction cost have been found to influence timing of maturation. We investigated the relationship between female size at maturity and individual growth trajectories of the long-lived semelparous European eel, Anguilla anguilla . A Bayesian model was applied to 338 individual growth trajectories of maturing migration-stage female silver eels from France, Ireland, the Netherlands and Hungary. The results clearly showed that when growth rates declined, the onset of maturation was triggered, and the eels left their growth habitats and migrated to the spawning area. Therefore, female eels tended to attain larger body size when the growth conditions were good enough to risk spending extra time in their growth habitats. This flexible maturation strategy is likely related to the ability to use diverse habitats with widely ranging growth and survival potentials in the catadromous life-history across its wide species range. Article in Journal/Newspaper Anguilla anguilla European eel The Royal Society Biology Letters 14 7 20180269 |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
Many diadromous fishes such as salmon and eels that move between freshwater and the ocean have evolved semelparous reproductive strategies, but both groups display considerable plasticity in characteristics. Factors such as population density and growth, predation risk or reproduction cost have been found to influence timing of maturation. We investigated the relationship between female size at maturity and individual growth trajectories of the long-lived semelparous European eel, Anguilla anguilla . A Bayesian model was applied to 338 individual growth trajectories of maturing migration-stage female silver eels from France, Ireland, the Netherlands and Hungary. The results clearly showed that when growth rates declined, the onset of maturation was triggered, and the eels left their growth habitats and migrated to the spawning area. Therefore, female eels tended to attain larger body size when the growth conditions were good enough to risk spending extra time in their growth habitats. This flexible maturation strategy is likely related to the ability to use diverse habitats with widely ranging growth and survival potentials in the catadromous life-history across its wide species range. |
author2 |
FRA and a Research Fellowship |
format |
Article in Journal/Newspaper |
author |
Yokouchi, Kazuki Daverat, Françoise Miller, Michael J. Fukuda, Nobuto Sudo, Ryusuke Tsukamoto, Katsumi Elie, Pierre Poole, W. Russell |
spellingShingle |
Yokouchi, Kazuki Daverat, Françoise Miller, Michael J. Fukuda, Nobuto Sudo, Ryusuke Tsukamoto, Katsumi Elie, Pierre Poole, W. Russell Growth potential can affect timing of maturity in a long-lived semelparous fish |
author_facet |
Yokouchi, Kazuki Daverat, Françoise Miller, Michael J. Fukuda, Nobuto Sudo, Ryusuke Tsukamoto, Katsumi Elie, Pierre Poole, W. Russell |
author_sort |
Yokouchi, Kazuki |
title |
Growth potential can affect timing of maturity in a long-lived semelparous fish |
title_short |
Growth potential can affect timing of maturity in a long-lived semelparous fish |
title_full |
Growth potential can affect timing of maturity in a long-lived semelparous fish |
title_fullStr |
Growth potential can affect timing of maturity in a long-lived semelparous fish |
title_full_unstemmed |
Growth potential can affect timing of maturity in a long-lived semelparous fish |
title_sort |
growth potential can affect timing of maturity in a long-lived semelparous fish |
publisher |
The Royal Society |
publishDate |
2018 |
url |
http://dx.doi.org/10.1098/rsbl.2018.0269 https://royalsocietypublishing.org/doi/pdf/10.1098/rsbl.2018.0269 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsbl.2018.0269 |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_source |
Biology Letters volume 14, issue 7, page 20180269 ISSN 1744-9561 1744-957X |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsbl.2018.0269 |
container_title |
Biology Letters |
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14 |
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7 |
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20180269 |
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1812810276703043584 |