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There’s something fishy in Canada. But that’s probably because our country contains about one-quarter of the world’s fresh water. That places a lot of responsibility on Canadians to protect the 230 species of fish that live in the streams, rivers, and lakes. As hard as it may be to believe, all water in Canada eventually flows out to sea. So any pollutants that enter our streams, ponds, marshes, lakes, or rivers inland will eventually reach the 70 percent of fish species that spend part of their life-cycle in coastal areas, including salt-marshes. As well, two-thirds of aquatic animals use estuaries (places where salt water and fresh water meet) as their nurseries, which makes them particularly vulnerable to pollutants. Mussels and oysters are equally susceptible to pollutants. Because they are unable to move, they feed by filtering particles from water, which may expose them to harmful chemicals. In fact, they are so susceptible to pollutants that several countries use samples of mussels and oysters to monitor ocean pollution. If you’d like to dive deeper into your search for fish information, this is the section to do it in. Select Fact Sheet:
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