Repartition of fish populations in the department of Creuse (France). The geographical contribution of electrofishing in headstreams - Université d'Orléans Access content directly
Journal Articles Studia Universitatis “Vasile Goldiș”, Seria Ştiințele Vieţii (Life Sciences Series) Year : 2008

Repartition of fish populations in the department of Creuse (France). The geographical contribution of electrofishing in headstreams

Abstract

The department of the Creuse is hydrologically situated in headwaters, which ecologically healthy watercourses allow us to consider as a reference point. Electrofishing is used here in a geographical way in order to chart the repartition of fish species representative of a certain water quality, covering a period of seven years and a vast space of 5600km². Over the years, populations of the least sensitive species (chub and dace) progress towards upstream waters, while the most sensitive species (minnows) regress and only subsist in the headwaters. These species are indicators of a degradation of physicochemical or sedimentary conditions moving upstream.
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Dates and versions

hal-02088931 , version 1 (03-04-2019)

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  • HAL Id : hal-02088931 , version 1

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Laurent Touchart, Yann Clave. Repartition of fish populations in the department of Creuse (France). The geographical contribution of electrofishing in headstreams. Studia Universitatis “Vasile Goldiș”, Seria Ştiințele Vieţii (Life Sciences Series), 2008, 18, pp.333-338. ⟨hal-02088931⟩
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