Fish of the archipelago and Lake Saint-Pierre

The channels of the archipelago teem with fish, making the region a great fishing destination.

Nearly 80 species of fish inhabit the waters of the Lake Saint-Pierre biosphere reserve.

The Société d’aménagement de la baie Lavallière (SABL) monitors fish populations in the bay. A total of 27 species have been observed, including Bullhead, Yellow Perch, Northern Pike, Pumpkinseed, Black Crappie, White Sucker, Central Mudminnow, German Carp, Golden Shiner and Bridle Shiner. The bay is an important breeding ground for early-spawning fish such as the Northern Pike and Yellow Perch.

Once abundant in the Lake Saint-Pierre region, Yellow Perch stocks have declined dramatically due to a variety of factors, from habitat degradation to the introduction of the Round Goby, an invasive exotic species that competes with juvenile Yellow Perch for food. The Round Goby, which is native to the Black Sea, was transported to Lake Saint-Pierre in ocean vessel ballast water. In 2012, a five-year moratorium was placed on Yellow Perch fishing in the archipelago, the lake and its main tributaries to protect the remaining stocks. Major changes will need to be implemented in various agricultural and industrial activities to improve water quality and restore Yellow Perch stocks to their former abundance in Lake Saint-Pierre.
Centre d'interprétation de Baie-du-Febvre, Centre de la Biodiversité du Québec, Musée des Abénakis, Musée québécois de culture populaire, Commission scolaire de Sorel-Tracy

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