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Black bullhead

life science Maturity 5-7 Next article →

The black bullhead is a special kind of catfish. It lives in the central United States in many types of water.

This fish is very tough and can survive in many places. It can live in water that is very warm or very muddy. It can even thrive in water that has low oxygen. This helps it live where other fish might struggle to survive. Because it can live in such hard places, it is sometimes called a mud catfish.

This fish has many ways to find food in the dark. It is nocturnal, which means it likes to feed at night.

Instead of scales, it has about 100,000 taste receptors all over its body. These tiny spots help the fish sense food in dark water. Many of these receptors are on its barbels, which are black whiskers near its mouth. It uses short, pointed teeth called cardiform teeth to eat. It eats almost anything, including insects, plants, and even small fish.

Scientists and experts have studied these fish for a long time. A book from 1991 by Phillips, Schmid, and Underhill describes them in the Minnesota region.

We can tell a black bullhead apart from its cousins by looking closely. It has black barbels and a tan crescent shape near its tail. Its tail fin is also squared off at the corners. This is different from the forked tails of blue or channel catfish. It also has a gray base on its anal fin.

Black bullheads have some very specific sizes and habits. They usually grow to a typical length of about 12 inches.

The largest one ever found was 14 inches long. They start to spawn, or lay eggs, between April and June. The female fish scoops out a small hole in the lake floor. She lays between 2,000 and 6,000 eggs in that spot. The male fish then fertilizes the eggs and helps care for them.

Even though they are small, these fish can change where they live. In Europe, they have become an invasive species. This means they were moved to a new place and caused problems for the local nature.

The European Union even made rules to stop them from being moved or sold. In the United Kingdom, people used a substance called rotenone to remove them from Lake Meadows. In ponds, they can live alongside fish like bass and crappie. They are very good at keeping their populations healthy in mixed ponds.

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