On dome-shaped norms of reaction for size-to-age at maturity in fishes

Détails

ID Serval
serval:BIB_1DD3CC895550
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
On dome-shaped norms of reaction for size-to-age at maturity in fishes
Périodique
Functional Ecology
Auteur(s)
Perrin N., Rubin J. F.
ISSN
0269-8463
Statut éditorial
Publié
Date de publication
1990
Peer-reviewed
Oui
Volume
4
Numéro
1
Pages
53-57
Langue
anglais
Résumé
The optimal size-to-age at maturity depends on growth and mortality rates, which vary with environment. Therefore, organisms in spatially or temporaly changing environments should develop adaptative phenotypic plasticity for this trait.
Experimental work by Alm (1959) on several fish species shows a dome-shape norm of reaction for size-to-age at maturity: size at maturity is smaller in both fast-growing and slow-growing fishes, than it is in fish with a medium growth rate.
Using computer simulations, we show that such a dome-shaped norm of reaction is optimal when assuming a finite life span and a negative relationship between production and survival rates. This latter assumption is supported by empirical data, as well as by physiological and emographic arguments.
Mots-clé
Fishes, growth and reproduction, life-history theory, mortality, optimization, phenotypic plasticity
Web of science
Création de la notice
24/01/2008 18:53
Dernière modification de la notice
03/03/2018 14:34
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