Cannibalism as the main feeding behaviour of tucunares introduced in southeast Brazil.
Individuals of its own genus were the main food item of two species of tucunares (Cichla cf. ocellaris and Cichla monoculus) introduced into the Volta Grande Reservoir. The abundance of adult tucunares may cause intra-specific competition, possibly leading to the high cannibalism rates found.
Gomiero
L M
LM
Departamento de Zoologia, Instituto de Biociências, Universidade Estadual Paulista, UNESP, Av. 24-A, n. 1515, CP 199, CEP 13506-900, Rio Claro, São Paulo, Brazil. leanmg@rc.unesp.br
Braga
F M S
FM
D000818:Animals; D001938:Brazil; D002190:Cannibalism; D023681:Cichlids / Q000502:physiology*; D005766:Gastrointestinal Contents; D016014:Linear Models; D045483:Rivers