They are found throughout the U.S. now, though were introduced west of the Rocky mountains. They can be found all the way south into Mexico.
They live in rivers, and large streams with slow to medium flow of water.
They weigh about 2 - 4 pounds, though can weigh much more at times. They are greenish-brown to slate colored on their back and sides, lighter underneath and tiny black spotting. Their tail fin is very forked. Their upper jaw juts out beyond the lower jaw. They have 3 pairs of whiskers (barbels) around the mouth that act as sense organs.
They have a very good sense of smell and taste.
They eat plants, insects, mollusks, crustaceans, and other fish.
Males find a safe nest sites under a log, rock or river bank and females lay eggs in a yellow glob. Males guard the nest. They hatch in about a week and for another week stay in the nest guarded by the male.
Species: I. punctatus
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