Egg sqize versus number of offspring trade-off: Female age rather than size matters in a domesticated arctic charr population
International audience Understanding how organisms adjust reproductive allocation trade-offs between offspring size versus number (OSN trade-off) is a central question in evolutionary biology. In organisms with indeterminate growth, changes in OSN according to maternal size or age have been reported...
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Online Access: | https://hal.inrae.fr/hal-02623395 https://doi.org/10.1007/s11692-017-9433-8 |
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ftunivnantes:oai:HAL:hal-02623395v1 2023-05-15T14:30:02+02:00 Egg sqize versus number of offspring trade-off: Female age rather than size matters in a domesticated arctic charr population Lasne, Emilien Leblanc, Camille Anne-Lise Gillet, Christian Écologie et santé des écosystèmes (ESE) Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL) Institut National de la Recherche Agronomique (INRA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ) Department of Aquaculture and Fish Biology Holar University College 2018 https://hal.inrae.fr/hal-02623395 https://doi.org/10.1007/s11692-017-9433-8 en eng HAL CCSD Springer info:eu-repo/semantics/altIdentifier/doi/10.1007/s11692-017-9433-8 hal-02623395 https://hal.inrae.fr/hal-02623395 doi:10.1007/s11692-017-9433-8 PRODINRA: 423733 WOS: 000425304900009 ISSN: 0071-3260 EISSN: 1934-2845 Evolutionary Biology https://hal.inrae.fr/hal-02623395 Evolutionary Biology, 2018, 45 (1), pp.105-112. ⟨10.1007/s11692-017-9433-8⟩ life-history reproductive trade-off salmonid offspring size fecundity [SDV.BDLR]Life Sciences [q-bio]/Reproductive Biology info:eu-repo/semantics/article Journal articles 2018 ftunivnantes https://doi.org/10.1007/s11692-017-9433-8 2023-03-01T03:39:41Z International audience Understanding how organisms adjust reproductive allocation trade-offs between offspring size versus number (OSN trade-off) is a central question in evolutionary biology. In organisms with indeterminate growth, changes in OSN according to maternal size or age have been reported in numerous taxa. The relative contribution of age and size remains largely unclear, as they are often highly correlated. In this study, we investigated how females adjust the offspring size versus number trade-off and analyzed the relative contribution of female age and size in a domesticated population of Arctic charr Salvelinus alpinus (Linnaeus, 1758) that exhibit large variation in size within five age classes. Our results show that the reproductive output (i.e. as measured by the clutch mass), was strongly correlated to female mass and age suggesting that the proportion of resources allocated to reproduction do not vary along lifetime. Egg mass and fecundity (egg number) increased with female mass overall. However, within an age class, larger females had higher fecundity but egg mass was poorly related to female mass. At the population level, a positive relationship was observed between fecundity and egg mass but within each class age the relation was negative revealing a OSN trade-off. Overall, our results show that, in our model Arctic charr population, allocation trade-off to reproduction and the way females allocate to egg mass and fecundity is largely determined by their age rather than mass. Article in Journal/Newspaper Arctic charr Arctic Salvelinus alpinus Université de Nantes: HAL-UNIV-NANTES Arctic Evolutionary Biology 45 1 105 112 |
institution |
Open Polar |
collection |
Université de Nantes: HAL-UNIV-NANTES |
op_collection_id |
ftunivnantes |
language |
English |
topic |
life-history reproductive trade-off salmonid offspring size fecundity [SDV.BDLR]Life Sciences [q-bio]/Reproductive Biology |
spellingShingle |
life-history reproductive trade-off salmonid offspring size fecundity [SDV.BDLR]Life Sciences [q-bio]/Reproductive Biology Lasne, Emilien Leblanc, Camille Anne-Lise Gillet, Christian Egg sqize versus number of offspring trade-off: Female age rather than size matters in a domesticated arctic charr population |
topic_facet |
life-history reproductive trade-off salmonid offspring size fecundity [SDV.BDLR]Life Sciences [q-bio]/Reproductive Biology |
description |
International audience Understanding how organisms adjust reproductive allocation trade-offs between offspring size versus number (OSN trade-off) is a central question in evolutionary biology. In organisms with indeterminate growth, changes in OSN according to maternal size or age have been reported in numerous taxa. The relative contribution of age and size remains largely unclear, as they are often highly correlated. In this study, we investigated how females adjust the offspring size versus number trade-off and analyzed the relative contribution of female age and size in a domesticated population of Arctic charr Salvelinus alpinus (Linnaeus, 1758) that exhibit large variation in size within five age classes. Our results show that the reproductive output (i.e. as measured by the clutch mass), was strongly correlated to female mass and age suggesting that the proportion of resources allocated to reproduction do not vary along lifetime. Egg mass and fecundity (egg number) increased with female mass overall. However, within an age class, larger females had higher fecundity but egg mass was poorly related to female mass. At the population level, a positive relationship was observed between fecundity and egg mass but within each class age the relation was negative revealing a OSN trade-off. Overall, our results show that, in our model Arctic charr population, allocation trade-off to reproduction and the way females allocate to egg mass and fecundity is largely determined by their age rather than mass. |
author2 |
Écologie et santé des écosystèmes (ESE) Institut National de la Recherche Agronomique (INRA)-AGROCAMPUS OUEST Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL) Institut National de la Recherche Agronomique (INRA)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry ) Department of Aquaculture and Fish Biology Holar University College |
format |
Article in Journal/Newspaper |
author |
Lasne, Emilien Leblanc, Camille Anne-Lise Gillet, Christian |
author_facet |
Lasne, Emilien Leblanc, Camille Anne-Lise Gillet, Christian |
author_sort |
Lasne, Emilien |
title |
Egg sqize versus number of offspring trade-off: Female age rather than size matters in a domesticated arctic charr population |
title_short |
Egg sqize versus number of offspring trade-off: Female age rather than size matters in a domesticated arctic charr population |
title_full |
Egg sqize versus number of offspring trade-off: Female age rather than size matters in a domesticated arctic charr population |
title_fullStr |
Egg sqize versus number of offspring trade-off: Female age rather than size matters in a domesticated arctic charr population |
title_full_unstemmed |
Egg sqize versus number of offspring trade-off: Female age rather than size matters in a domesticated arctic charr population |
title_sort |
egg sqize versus number of offspring trade-off: female age rather than size matters in a domesticated arctic charr population |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.inrae.fr/hal-02623395 https://doi.org/10.1007/s11692-017-9433-8 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic charr Arctic Salvelinus alpinus |
genre_facet |
Arctic charr Arctic Salvelinus alpinus |
op_source |
ISSN: 0071-3260 EISSN: 1934-2845 Evolutionary Biology https://hal.inrae.fr/hal-02623395 Evolutionary Biology, 2018, 45 (1), pp.105-112. ⟨10.1007/s11692-017-9433-8⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s11692-017-9433-8 hal-02623395 https://hal.inrae.fr/hal-02623395 doi:10.1007/s11692-017-9433-8 PRODINRA: 423733 WOS: 000425304900009 |
op_doi |
https://doi.org/10.1007/s11692-017-9433-8 |
container_title |
Evolutionary Biology |
container_volume |
45 |
container_issue |
1 |
container_start_page |
105 |
op_container_end_page |
112 |
_version_ |
1766303956839956480 |