Scientists Discover New Catfish Species in Rio Paraíba Do Sul Basin, Brazil
The newly discovered catfish species is only 3-3.5 cm in length making it one of the smallest catfish species existing today. Though scientists compared them to small decorative fish, they are not the smallest catfish species to be found. Species of Aspredinidae and Trichomycteridae reach sexual maturity at only 1 cm in total. The Aspredinidae catfish family is distributed throughout tropical South America and consists of over 35 species. They are nocturnal, often peaceful species that can be combined in a community tank with similar-sized fish, according to the press release.
Some of the larger catfish species include the wels catfish measuring more than 2.5 meters and weighing more than 220 pounds. These species feed on rats, mice, frogs and some aquatic birds. The bigger catfish species are fished for consumption while the smaller ones are used for decorative purposes in aquariums.
The description of the tiny new species of catfish was published in the open access journal Zookeys.