"catfish" 的定义和意义

What is a "catfish"?

Catfish refers to a diverse group of freshwater and saltwater fish species known for their distinctive barbels, which resemble a cat's whiskers. These bottom-dwelling fish have flattened heads, scaleless bodies, and a variety of sizes and colors. Catfish are renowned for their excellent sensory abilities, aided by their barbels, which help them locate food even in murky waters. They are predominantly nocturnal and feed on a wide range of prey, including smaller fish, insects, crustaceans, and plant matter. Catfish are highly adaptable and can be found in various aquatic habitats, including rivers, lakes, and swamps. They are popular among anglers due to their size, strength, and tasty flesh. Catfish are also important in aquaculture, where they are farmed for their meat, making them a significant food source for many communities worldwide.