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Pearl mussels and salmon rivers around Saint-Petersburg

A.N. Ostrovsky, I.Yu. Popov. D.N. Kovaliov, A.E. Maruntchak

A river pearl was well known in Europe relatively recently. It was picked out from a river mollusk – pearl mussel Margaritifera margaritifera L.

A remarkable feature of this mussel is that it reproduces by means of salmon fishes: its larvae live and develop on the gills and fins of Atlantic salmon (Salmo salar L.) or brown trout (Salmo trutta L.). It is considered that mussel larval infection is not harmful for fish.

We generalized the data on trout and salmon rivers around Saint-Petersburg and in the Leningrad oblast (it turned out that there are more than 100 ones) and on the pearl mussel distribution (8 populations). We monitor these populations together with the river state.

Since the mussel requires salmon for reproduction, the releases of salmon juveniles could trigger the reproduction of some suppressed populations. Such releases took place in accordance with our recommendation in the rivers of one sanctuary of Saint-

Gap analysis project (GAP)

in the North-West Russia

"Saint-Petersburg Society for bat research and conservation"

Regional Red Data lists of Saint-Petersburg and Leningrad region

Habitat (biotope) analysis

Pearl mussel and salmon rivers

 around Saint-Petersburg

Bird migrations in North-West


Research on biodiversity of the

ancient parks of Saint-Petersburg



Petersburg - Gladyshevsky. This work is conducted by the Directorate of protected areas of Saint-Petersburg.

The project was supported in 2008 by the Rufford small grants foundation.







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