Infestation pattern and parasitic castration of the crustacean Riggia paranensis (Crustacea: Cymothoidea) on the fresh water fish Cyphocharax gilbert (Teleostei: Curimatidae)

by Juliana de Souza Azevedo, Leonardo Gomes da Silva, Carlos Roberto Silveira Fontenelle Bizerri, Marilvia Alencar Dansa-Petretski, Neuza Rejane Wille Lima