Rehabilitation efforts for Atlantic salmon in the Meuse basin area: Synthesis 1983-1998

C. Prignon, J. C. Micha, G. Rimbaud, J. C. Philippart

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

In the 1950s, Atlantic salmon had become extinct in the river Meuse basin, mainly owing to the construction of navigation weirs. In 1987 started a rehabilitation program of Atlantic salmon in Belgium. Stockings are being performed in six tributaries of the river Meuse, using eyed eggs, parr and pre-smolts obtained from foreign eggs reared in a hatchery of the 'Service de la Peche'. By the end of 1998, 896033 young salmon have been released in the wild, especially in the river Ourthe basin. In most of the cases, the evaluation of stocking operations indicates good adaptation of parr in the tributaries where they are stocked, with autumnal 0+ parr densities up to 20-30 ind 100 m-2. However, fish mortality may occur when smolts pass through the turbines of the hydropower stations in the river Meuse (5% per power plant), and most of the fish passes located downstream of Namur are not suitable for anadromous fish migration. The paper reports the results of stocking experiments, the evaluation of mortality rates in turbines and the advancement of programmes aiming at the restoration of downstream and upstream migration (construction of fish migration facilities).

langue originaleAnglais
Pages (de - à)69-77
Nombre de pages9
journalHydrobiologia
Volume410
Les DOIs
étatPublié - 1 sept. 1999

Empreinte digitale

parr
fish roe
Salmo salar
turbines
smolts
basins
Belgium
synthesis
smolt
fish
basin
turbine
anadromous fish
weirs
raceways
tributary
rivers
water power
river basin
power plants

Citer ceci

Prignon, C. ; Micha, J. C. ; Rimbaud, G. ; Philippart, J. C. / Rehabilitation efforts for Atlantic salmon in the Meuse basin area: Synthesis 1983-1998. Dans: Hydrobiologia. 1999 ; Vol 410. p. 69-77.
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Rehabilitation efforts for Atlantic salmon in the Meuse basin area: Synthesis 1983-1998. / Prignon, C.; Micha, J. C.; Rimbaud, G.; Philippart, J. C.

Dans: Hydrobiologia, Vol 410, 01.09.1999, p. 69-77.

Résultats de recherche: Contribution à un journal/une revueArticle

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