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- Globally, there are about 10 000 freshwater fishes (about 20% of all vertebrate species).
- Canada is home to 230 resident species of freshwater fishes, although as
many as 7 Extirpated/Extinct species have also occurred here at one time.
- Ontario and Quebec (155 and 114 species, respectively) have much higher species richness than other regions.
- Across provinces, an average of 53% of species are ranked Secure.
- From 0 to 10% of freshwater fish are considered At Risk, depending on the province or territory.
- At least 10% of Canada’s freshwater fish species richness is made up of Exotic species.
- Seven species are Extinct in Canada, while two more are Extirpated in one or more provinces.
- Exotic species (e.g., Sea Lamprey) are implicated in freshwater fish extinctions.
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