Reference : What do we know to evaluate the health of brown trout (Salmo trutta) populations?
Scientific congresses and symposiums : Paper published in a book
Life sciences : Zoology
What do we know to evaluate the health of brown trout (Salmo trutta) populations?
Gouraud, Véronique [Electricité de France > > > >]
Baran, Philippe [Onema > Pôle Ecohydraulique > > >]
Bardonnet, Agnès [Institut Scientifique de Recherche Agronomique - INRA > UPPA, UMR Ecobiop > > >]
Capra, Hervé [IRSTEA > Laboratoire d'Hydroécologie Quantitative > > >]
Delacoste, Marc [Fédération de Pêche des Hautes Pyrénées > > > >]
Lascaux, Jean Marc [ECOGEA > > > >]
Poulet, Nicolas [Onema > Direction de l’Action Scientifique et Technique > > >]
Ovidio, Michaël mailto [Université de Liège - ULiège > Département de Biologie, Ecologie, Evolution. > Laboratoire de Démographie des Poissons et d'Hydroécologie (LDPH) > > >]
Baglinière, Jean Luc [Institut Scientifique de Recherche Agronomique - INRA > Ecologie et Santé des Ecosystèmes > > >]
Proceedings of the 9th International Conference on Ecohydraulics
9th International Conference on Ecohydraulics
Du 16 septembre au 22 septembre 2012
[en] Brown trout ; health ; population ; Evaluation
[en] The renewed emphasis on the concept of the health of ecosystems highlights society’s interest in taking measures to protect environments transformed by human activity. The criteria used for evaluating the health of fish population are rarely discussed within the scientific community. The exercise proposed here aimed to discuss these for the brown trout (Salmo trutta), a flagship species from the freshwater fish community typical from headwaters of watercourses which represent most of the French hydrographic network. This initiative aimed to gather the ideas of a limited number of experts on the function of these populations and on the criteria
for evaluating their function. The main key parameters were identified and organised into a hierarchical framework for each development stage. A consensus emerged on the fact that in the current stage of knowledge, the diagnosis can be established based on the analysis of abiotic parameters crucial for the biology and, with more difficulty, on the analysis of biotic parameters. For all the development stages, the identified parameters are
linked to habitat (substrate, stream flow, temperature and water quality), hydrology and connectivity. Further knowledge must be acquired in order to be able to measure the biological criteria. That implies to reinforce longterm biological monitoring and research to understand the variability in biological parameters, the relevant spatiotemporal scales and the functional processes.
Applied and Fundamental FISH Research Center - AFFISH-RC
Researchers ; Professionals ; Students

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