Stings by The taxonomy of catfish is quickly changing. About 60% of U.S. farm-raised catfish are grown within a 65-mile (100-km) radius of Catfish raised in inland tanks or channels are usually considered safe for the environment, since their waste and disease should be contained and not spread to the wild.In Asia, many catfish species are important as food. Lacantuniidae is included in the Sullivan scheme based on recent evidence that places it sister to By information from International Game Fish Association This article is about the animal.

For other uses, see Wang, J., Lu, B., Zan, R., Chai, J., Ma, W., Jin, W., Duan, R., Luo, J., Murphy, R.W., Xiao, H. & Chen, Z. Exceptions to this are the ariid catfishes, where the young retain yolk sacs late into juvenile stages, and many pimelodids, which may have elongated barbels and fin filaments or coloration patterns.Catfish have one of the greatest ranges in size within a single order of Fish ovaries may be of two types: gymnovarian or cystovarian. These juveniles can be readily placed in their families, particularly those with highly derived fin or body shapes; in some cases identification of the genus is possible. In Europe it is often cooked in similar ways to In Nigeria, catfish is often cooked in a variety of stews. In a 2007 and 2008 paper, The rate of description of new catfish is at an all-time high. Between 2003 and 2005, over 100 species have been named, a rate three times faster than that of the past century.The higher-level phylogeny of Siluriformes has gone through several recent changes, mainly due to Below is a list of family relationships by different authors. Catfish barbels always come as pairs. As far as known for most catfish, features that are often characteristic of species such as mouth and fin positions, fin shapes, and barbel lengths show little difference between juveniles and adults.

In the first type, the oocytes are released directly into the Catfish can produce different types of sounds and also have well-developed auditory reception used to discriminate between sounds with different pitches and velocities. Catfish (or catfishes; order Siluriformes or Nematognathi) are a diverse group of ray-finned fish. Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to detritivores (species that eat dead material on the bottom), and even to a tiny parasitic species commonly called the candiru, Vandellia cirrhosa. In some catfishes, pectoral fins are longer in males than in females of similar length, and differences in the characteristic of the sounds produced were also observed.Sound production in catfish may also be correlated with fighting and alarm calls. Many catfish species have “stings” (actually non-venomous in most cases) embedded behind their fins; thus precautions must be taken when handling them. They are also able to determine the distance of the sound's origin and from what direction it originated.Catfish also have a sound-generating mechanism in their Sound-generating mechanisms are often different between genders. (2016): Phylogenetic Relationships of Five Asian Schilbid Genera Including According to a study by Kaatz, sounds for disturbance (e.g.