A check on the invertebrates of a Norwegian hydroelectric reservoir and their bearing upon fish production

abastecimiento de agua alimentation en eau almacenamiento de agua animal animal aquatique animales animals aquatic animals aquatic communities aquatic organisms arthropode arthropods benthos bentos biocenose biocenosis biocoenosis biological production biomasa biomass biomasse crustacea engineering escandinavia europa europe fishery production hydraulic engineering hydraulic structures invertebrados invertebrates organisme aquatique ouvrage hydraulique plancton plankton production production biologique production halieutique scandinavia scandinavie stockage d'eau water storage water supply