02183naa a2200241 a 450000100080000000500110000800800410001902200320006010000220009224501060011426000090022052014430022965000140167265000200168665000200170665000190172665000130174565000240175865000210178270000250180370000210182877300920184920903512019-04-23       2018    bl uuuu     u00u1 u    #d  aISSN 1984-2961 (Electronic)1 aHOSHINO, E. de M.  aParasites of ornamental fish commercialized in Macapá, Amapá State (Brazil).h[electronic resource]  c2018  aThis study investigated the parasites fauna of four freshwater ornamental fish species in aquarium shops of Macapá, Amapá State, in addition to survey the commercialized fish species and sanitary conditions of aquarium shops. Different native and non-native ornamental fish species were found in aquarium shops, mainly Poecilidae. We examined 30 specimens of Xiphophorus maculatus, 30 Danio rerio, 30 Paracheirodon axelrodi, and 30 Corydoras ephippifer for parasites. Of the 120 fish examined, 22.5% were parasitized by one or more species and a total of 438 parasites were collected and identified. Parasites such as: Ichthyophthirius multifiliis, Monogenea, undermined Digenea metacercariae, Acanthostomum sp. metacercariae, Camallanus spp., Bothriocephalus acheilognathi and Echinorhynchus sp. infected the hosts examined. Endoparasites in the larval stage showed the greatest diversity and Camallanus spp. was found in all hosts species examined. Paracheirodon axelrodi (43.3%) was the most parasitized host, while C. ephippifer (6.7%) was the least parasitized. Despite the low ectoparasites level, six species of endoparasites was observed, demonstrating that prophylactic and quarantine procedures were not fully adequate. Therefore, failures in prophylactic procedures on any link in the production industry of ornamental fish may cause parasite transmission to ornamental fish captured in different environments and localities.  aBiosafety  aFreshwater fish  aOrnamental fish  aBiossegurança  aParasito  aPeixe de água doce  aPeixe ornamental1 aHOSHINO, M. D. F. G.1 aTAVARES-DIAS, M.  tRevista Brasileira de Parasitologia Veterinariagv. 27, n. 1, p. 75-80, jan./mar. 2018.