Abstract
The species of Giant trahira that inhabit the Amazon region have adaptation to different aquatic environments and unique predatory behavior. Hoplias curupira, is found mainly in the Araguaia-Tocantins and Xingu basins. It belongs to the Erythrinidae family and was recently described by Oyakawa & Mattox in 2009. It has morphological and genetic characteristics distinct from other trahira, and mainly seeks headwaters and fast waters. Its dark brown patterns disguise stony environments, allowing it to feed on a variety of prey. The study of fish behavior is essential for their ex-situ maintenance, where it interferes with their natural behavior, making it necessary to provide adequate conditions. This study investigated how changing environmental colors affect camouflage behavior and pattern. Where the tests were carried out using different colors of cardboard as the background of the aquarium, visual contrasts, tones and hues were explored. Aiming to analyze behavioral responses to these chromatic stimuli.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
