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Brown bullhead
The brown bullhead (''Ameiurus nebulosus'') is a fish of the Ictaluridae family that is widely distributed in North America. It is a species of bullhead catfish and is similar to the black bullhead (''Ameiurus melas'') and yellow bullhead (''Ameiurus natalis''). It was originally described as ''Pimelodus nebulosus'' by Charles Alexandre Lesueur in 1819, and is also referred to as ''Ictalurus nebulosus.''
The brown bullhead is also widely known as the "mud pout," "horned pout," "hornpout," or simply "mud cat," along with the other bullhead species.
The brown bullhead is important as a clan symbol of the Ojibwe group of Native Americans. In their tradition, the bullhead or "wawaazisii" is one of six beings that came out of the sea to form the original clans.〔http://www.glifwc.org/pub/fall99/clansystem.htm〕 The Brown Bullhead attains a length of up to 21 inches.〔(Petersons field guide to freshwater fishes of North America north of Mexico)〕
==Habitat==
The brown bullhead thrives in a variety of habitats, including lakes and ponds with low oxygen and/or muddy conditions. In many areas of the United States, brown bullheads are opportunistic bottom feeders. It has few natural predators and is not popular with fishermen, so it has thrived. For native fish species, this predatory fish is a disaster. Catfish are found in a variety of habitats, from lakes or murky ponds to drainage ditches. They are scarce during the day but come out at night to feed, searching the bottom of a lake or river for food.〔"Brown Bullhead Catfish." Aliens Among Us. N.p., n.d. Web. 27 Oct. 2014. .〕 They eat insects, leeches, snails, fish, clams, and many plants. They are also known to eat corn, which can be used as bait. Similar to other catfish, they spawn only after the temperature of the water has reached 80 degrees Fahrenheit (27 °C) (cooler in the northern US) in June and July.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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