[Liming of the Yndesdal watercourse. Effects on water chemistry and biology]

acid deposition agua atlantic salmon chaulage chemistry chimie cours d'eau cursos de agua dynamique des populations eau encalado fishery resources freshwater ecology invertebrados invertebrates jeune animal lac lagos lakes liming lutte antipollution noruega norway pollution control population dynamics recursos pesqueros ressource halieutique rivers salmo salar salmo trutta saumon atlantique stock assessment water young animals