[Does freshwater pearl mussel (Margaritifera margaritifera) change life-history of Atlantic salmon (Salmo salar)?].

The critical analysis of the literature data shows that infection of freshwater pearl mussel glochidia does not influence the duration of freshwater period of the Atlantic salmon's life, as well as on all life cycle duration of this fish. Such infection does not influence health of Atlantic salmon or worsens slightly. There are no experimental data about symbiosis between pearl mussel and salmonid fishes.