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The black bullhead or black bullhead catfish (Ameiurus melas) is a species of bullhead catfish. Like other bullhead catfish, it has the ability to thrive in waters that are low in oxygen, brackish, turbid, and/or very warm. [2] It also has barbels located near its mouth, a broad head, spiny fins, and no scales.
The channel catfish is an important food source in the southern United States and is valued for the quality of its meat. [35] In the United States, catfish is the largest aquaculture industry, and channel catfish make up 90% of farm-raised catfish. In 2021, catfish farmers in the United States made $421 million in sales.
The blue catfish (Ictalurus furcatus) is a large species of North American catfish, reaching a length of 65 in (170 cm) and a weight of 143 lb (65 kg). [4] The continent 's largest catfish, it can live to 20 years, with a typical fish being between 25–46 in (64–117 cm) and 30–70 lb (14–32 kg).
The broadhead catfish (Clarias macrocephalus) is an economically important air-breathing catfish that is a native of Southeast Asia. The fish is farmed in ponds for use in human consumption in countries such as Thailand ( Thai : ปลาดุกอุย ) and the Philippines .
Fingerling – refers to a fish that has reached the stage where the fins can be extended and protective scales have covered the body. [4] At this stage, the fish is typically about the size of a human finger, [5] hence the name. Once reaching this stage, the fish can be considered a juvenile, and is usually active enough to move around a large ...
Aside from human consumption and sport fishing the spotted bullhead may fall victim to predators such as otters and snapping turtles but it is particularly threatened by the presence of larger catfish. Bullhead catfishes are extremely vulnerable to predation by introduced species of large catfishes, such as flathead catfish and the blue catfish ...
Many cultured fishes (tilapia, carp, catfish, many others) can be raised on a strictly herbivorous diet. Top-level carnivores (most salmonidae species in particular) on the other hand, depend on fish feed, of which a large portion is usually derived from wild-caught fish ( anchovies , menhaden , etc.).
The flathead catfish cannot live in full-strength seawater (which is about 35 parts per thousand or about 35 grams of salt per liter of water), but it can survive in 10 ppt for a while and thrive in up to about 5 ppt. [12] Flathead catfish are a benthic fish species meaning they are a fish which prefers to lay on the bottom of a body of water.