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Abstract
Dans le cadre des travaux menés sur les salmonidés migrateurs en Basse-Normandie, un programme visant à rétablir leur libre circulation sur l'Orne a été mise en place en 1981, grâce à un large consensus local. Regroupant diverses actions complémentaires sur les plans techniques, règlementaires et biologiques, il doit permettre de mettre en valeur le cheptel de truites de mer et de saumons de ce cours d'eau.
As part of works carried out on migrating salmonoidea in Lower Normandy, a programme aiming at re-establishing their free circulation in the Orne was set up in 1981, following an extensive local consensus. Bringing together various additional technical, statutory and biolagical activities, this should improve the stock of sea-trout and salmon along this river.