IRISSON Jean-Olivier

  • Laboratoire d'OcĂ©anographie de Villefranche (LOV, UMR 7093), Sorbonne UniversitĂ©, Villefranche-sur-Mer, France
  • Behaviour & Ethology, Biogeography, Dispersal & Migration, Marine ecology, Spatial ecology, Metacommunities & Metapopulations, Statistical ecology, Theoretical ecology
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Field assessment of precocious maturation in salmon parr using ultrasound imaging
Marie Nevoux, Frédéric Marchand, Guillaume Forget, Dominique Huteau, Julien Tremblay, Jean-Pierre Destouches

Recommended by Jean-Olivier Irisson based on reviews by Hervé CAPRA and 1 anonymous reviewer
OB-GYN for salmon parrs

Population dynamics and stock assessment models are only as good as the data used to parameterise them. For Atlantic salmon (Salmo salar) populations, a critical parameter may be frequency of precocious maturation. Indeed, the young males (parrs) that mature early, before leaving the river to reach the ocean, can contribute to reproduction but have much lower survival rates afterwards. The authors cite evidence of the potentially major consequences of this alternate reproductive strategy. So, ...


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