The research undertaken by the UMR INRA-UPPA “ECOBIOP” focuses on the role of individual behaviour in the structure and evolution of wild fish populations. We study the consequences of behavioural strategies (mainly dispersal and reproduction) on the variability of target life-history traits (survival, growth, age at reproduction, reproductive success). We then integrate these results in the broader framework of population demography and genetics, by building individual level or population level dynamic models.
This general objective is divided into research projects carried out on local species (shad, eel, brown trout and Atlantic salmon) and catchment areas (Nives, Nivelle, Bidassoa and Adour rivers) ) but also in preserved sites ( introduced salmonids in the Kerguelen islands). We also develop applications regarding management and conservation of wild fish populations and about lotic freshwater environments.Our research projects are structured around some key questions:
What is the role of behaviour and individual status (morphology, physiology) in populations dynamics?
Can we predict the demo-genetic evolution of the populations?
What is the role of the environmental pressure in the viability and evolution of the populations?
How do we develop useful knowledge and tools in order to help management decisions in population ecology ?
There are 5 projects currently being developed:
The environmental effects on salmon populations : dynamics, evolution and decision making aid.
Phenotypic and genotypic variability in a fragmented environment: brown trout in foothill rivers.
Colonisations and biological invasions: brown trout in the Kerguelen Islands.
Behavioural traits of early stages in fish and their consequences at the population level
The role of riverine birds and fish communities in the functioning of the Pyrenees’ rivers.