PARASITOLOGICAL EVALUATION AND BODY INDICES OF Osteoglossum bicirrhosum (Vandelli, 1829) TRADED IN A FAIR OF MANAUS, AMAZONAS, BRAZIL
Jefferson LEMOS
This study evaluated the parasitic fauna and body index of Osteoglossum bicirrhosum specimens intended for fish trade. Fish were parasitized by ectoparasites, Monogenoidea Telethecium na-salis (10%), Gonocleithrum aruanae (100%) and Branchiura Argulus sp. (10%). The parasitic intensity of G. aruanae was positively correlated to the weight-length relationship (p 3.00) and the relative condition factor indicated good body condition in the examined fish (Kn = 1). The splen and hepato-somatic index were on average 0.13 ± 0.08% and 0.83 ± 0.22%, respectively. This was the first study on evaluation of O. bicirrhosum health planned for the consumer in a market of fresh fish of the Amazonas State.
