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The Brook Trout has the scientific name salvelinus fontinalis. It is the state fish for 9 states including New Hampshire, Michigan, Virginia, New Jersey, New York, North Carolina, Pennsylvania, Vermont, and West Virginia.
Physical attributes of the Brook Trout
A full grown brook trout is around two feet long and weighs around 7 pounds. It is greenish brown in color with a marbled pattern along its sides and back. The fins and tail are often red as well as some of the belly and sides. Red lines and red dots are found on the belly and tail. The red dots usually have blue circles around them. Because of the marbling and spots, it is sometimes called the speckled trout.
Habitat of the Brook Trout
The brook trout is a freshwater fish that typically lives in small streams and lakes in the Eastern United States and Canada. Brook trout tend to survive in very cold and pure water. They are not a long living fish and typically live around four to five years in the wild.
Because the brook trout needs clean water to live, conservationists often use the brook trout population to determine how polluted a body of water is. If the population is strong and growing, this usually means the water is clean of pollutants. If the population is shrinking, this can often mean that their environment, and the body of water where they live, is getting contaminated.