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Evolution of diadromy in fish: Insights from a tropical genus (Kuhlia species)

Feutry, Pierre, Castelin, Magalie, Ovenden, Jennifer R., Dettai, Agnes, Robinet, Tony, Cruaud, Corinne and Keith, P (2013). Evolution of diadromy in fish: Insights from a tropical genus (Kuhlia species). The American Naturalist,181(1):52-63.

Document type: Journal Article

IRMA ID 82057923xPUB374
Title Evolution of diadromy in fish: Insights from a tropical genus (Kuhlia species)
Author Feutry, Pierre
Castelin, Magalie
Ovenden, Jennifer R.
Dettai, Agnes
Robinet, Tony
Cruaud, Corinne
Keith, P
Journal Name The American Naturalist
Publication Date 2013
Volume Number 181
Issue Number 1
ISSN 0003-0147   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-84871322513
Start Page 52
End Page 63
Total Pages 12
Place of Publication Chicago
Publisher University of Chicago Press
HERDC Category C1 - Journal Article (DIISR)
Abstract Diadromous species undergo regular migration between fresh and marine waters. This behavior is found in many species, including fish, mollusks, and crustaceans, some of which are commercially valuable species. Several attempts to trace the evolution of this behavior have been made in Salmonidae and Galaxiidae, but ambiguous phylogenies and multiple character state changes prevented unequivocal conclusions. The Kuhliidae family consists of 12 fish species that inhabit tropical islands in the Indo-Pacific region. The species have marine, partially catadromous, or fully catadromous life histories (i.e., they migrate from rivers to the sea to reproduce). The evolution of migratory behavior was traced on a well-resolved phylogeny. Catadromous Kuhlia species were basal, and partially catadromous and marine species formed derived monophyletic groups. This is, to our knowledge, the first time that a clear origin and polarity for the diadromous character has been demonstrated. We propose that the relative lack of resources in tropical, inshore, marine habitats and the ephemeral and isolated nature of freshwater environments of tropical islands, combined with phenotypic plasticity of migratory traits, play key roles in driving the evolution of diadromy in the Kuhliidae and probably in other groups. This work is an important starting point to understand the role of diadromy in speciation and adaptation in unstable habitats.

Keywords Diadromy
Ancestral character reconstruction
Habitat shift
Land locking
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Created: Thu, 07 Aug 2014, 16:58:43 CST