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The objective of this study was to identify the parasitic fauna, the impact of the parasite-host relationship and the potential risk of transmission of zoonotic parasites in fish marketed in the Metropolitan Region of Recife (Northeastern of Brazil). Ectoparasites and endoparasites were collected in Pseudupeneus maculatus (n=34), Lutjanus synagris (n=23), and Ocyurus chrysurus (n=20). Organs and/or tissues with and without parasites were processed by routine histological techniques. Overall, 43 (55.8%) specimens were parasitized by: Rocinela signata; Lernanthropus sp.; Lernaeolophus sultanus; Goussia sp.; Haliotrema sp.; Raphidascaris (Ichthyascaris) sp.; Cucullanus sp.; larvae of Pseudoterranova sp., Contracaecum sp., Anisakis sp., and Trypanorhyncha. Macroscopic and/or histological alterations were associated with Lernantrhopus sp. (gills) and Pseudoterranova sp. (liver) in O. chrysurus; R. signata (gills) in P. maculatus; and Lernaeolophus sultanus (maxilla) of L. synagris. Histological analysis was shown to be a tool that provides important knowledge about the impact of the parasites on the health of studied marine fish. New records of parasites are presented (Lernanthropus sp. in O. chrysurus, Goussia sp. in P. maculatus, L. sultanus in L. synagris) and parasites of importance in Public Health are registered (Anisakis sp., Pseudoterranova sp., Contracaecum sp., and Trypanorhyncha), emphasizing the need for measures to avoid the risk of transmission to consumer. The information contributes to the knowledge about the parasitic fauna of fish and its distribution along the coast of Brazil.

PARASITIC INFESTATIONS AND INFECTIONS IN MARINE FISH (ACTINOPTERYGII: LUTJANIDAE AND MULLIDAE) MARKETED IN BRAZIL – AN ANIMAL AND HUMAN HEALTH ISSUE