Temporal changes in European eel, Anguilla anguilla, stocks in a small catchment after installation of fish passes - Archive ouverte HAL Access content directly
Journal Articles Fisheries Management and Ecology Year : 2005

Temporal changes in European eel, Anguilla anguilla, stocks in a small catchment after installation of fish passes

Abstract

Changes in the abundance of European eel, Anguilla anguilla L., in the River Fre'mur, France, were examined over an 8-year period. Natural connectivity of the river was disturbed by three high dams that inhibited eel upstream migration and reduced recruitment by elvers and yellow eels. After eel passes were installed, fish became more abundant upstream (mean density 0.5 eel m)2). Moreover, except in the more upstream areas, no decline in eel numbers and biomass was found, in contrast to the general decline of eel throughout its distribution range. It was concluded that eel passes are important to conserve and/or to recover eel stocks.
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Dates and versions

hal-00793407 , version 1 (22-02-2013)

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Pascal Laffaille, Anthony Acou, Jérôme Guillouët, Antoine Legault. Temporal changes in European eel, Anguilla anguilla, stocks in a small catchment after installation of fish passes. Fisheries Management and Ecology, 2005, 12, pp. 123-129. ⟨10.1111/j.1365-2400.2004.00433.x⟩. ⟨hal-00793407⟩
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