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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.
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 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).
Young Mekong catfish do exhibit barbels and oral teeth, but these features diminish as they age and are absent by the time they grow to be 30–50cm in length. [3] Mekong giant catfish are one of the largest species of freshwater fish. In 2005, the Mekong giant catfish attained the Guinness World Record for the world's largest freshwater fish.
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.
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 ...
Another identifying feature for the broadhead catfish is the white spots on the side of its black body. The male and the female catfish can be identified by looking at their anus. The males have elongated urogenital papillae around their anus while the females only have a round opening. [4] The males can reach lengths of up to 120 cm (47.2 ...
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 ...