parasitic fauna of eight species of ornamental freshwater fish species from the middle negro river in the brazilian amazon region.twenty-seven specimens of cardinal tetra paracheirodon axelrodi, 33 rosy tetra hyphessobrycon copelandi (characidae), 28 marbled hatchetfish carnegiella strigata, 26 blackwing hatchetfish carnegiella martae (gasteropelecidae), 27 bodó ancistrus hoplogenys (loricariidae), 31 brown pencilfish nannostomus eques, 38 oneline pencilfish nannostomus unifasciatus (lebiasinidae) and 13 angelfish pterophyllum scalare (cichlidae) were collected from the middle negro river, state of amazonas, brazil, for pa ...201020624347
diversity of parasites in wild astronotus ocellatus (perciformes, cichlidae), an ornamental and food fish in brazil.the community composition of parasites was characterized in astronotus ocellatus from a tributary of the amazon river, northern brazil. the prevalence was 87.9%, and a total of 526,052 parasites were collected, with a mean of 15,941 parasites per host. nine taxa of ecto- and endo-parasites were identified, but ichthyophthirius multifiliis was the dominant species, while piscinoodinium pillulare, clinostomum marginatum and argulus multicolor were the least prevalent parasites. the parasite commun ...201729044314
are similar the parasite communities structure of trachelyopterus coriaceus and trachelyopterus galeatus (siluriformes: auchenipteridae) in the amazon basin?the aim of this study was to compare the parasite communities in two sympatric host populations, trachelyopterus coriaceus andtrachelyopterus galeatus, which were caught in tributary of the amazon river in brazil. all the specimens of t. galeatusand t. coriaceus were infected by one or more parasites, such as ichthyophthirius multifiliis, tripartiella tetramerii, trichodina nobilis, cosmetocleithrum striatuli, contracaecumsp., cystidicoloides sp., dadaytremoides parauchenipteri and gorytocephalu ...201627007248
structure of the parasites communities in two erythrinidae fish from amazon river system (brazil).this study compared the parasite communities of hoplias malabaricus and hoplerythrinus unitaeniatus from amazon river system. hoplias malabaricus were infected by ichthyophthirius multifiliis, piscinoodinium pillulare, tetrahymena sp., urocleidoides eremitus, braga patagonica, metacercariae of clinostomum marginatum, procamallanus (spirocamallanus) inopinatus, larvae of contracaecum sp. and larvae of nomimoscolex matogrossensis. hoplerythrinus unitaeniatus were also infected by these same specie ...201526083690
seasonal pattern in parasite infracommunities of hoplerythrinus unitaeniatus and hoplias malabaricus (actinopterygii: erythrinidae) from the brazilian amazon.the present study investigated the effects of seasonal variation in parasites infracommunities of hoplerythrinus unitaeniatus and hoplias malabaricus from a tributary of amazon river. for h. unitaeniatus and h. malabaricus, 11 parasite species were similar, and greatest parasite richness occurred during the rainy season. ichthyophthirius multifiliis was the dominant parasite species for both hosts. in h. unitaeniatus, infection by whittingtonocotyle caetei, whittingtonocotyle jeju, urocleidoides ...201626751882
parasites of native cichlidae populations and invasive oreochromis niloticus (linnaeus, 1758) in tributary of amazonas river (brazil).this study provides the first investigation on acquisition of parasites in invasive o. niloticus by parasite species of native cichlidae from the igarapé fortaleza basin, northern brazil. there were examined 576 specimens of 16 species of native cichlids and invasive o. niloticus collected in the main channel and the floodplain area of this tributary of amazon river. the invasive o. niloticus was poorly parasitized having only ichthyophthirius multifiliis, trichodina centrostrigeata, paratrichod ...201424728360
parasite diversity in oxydoras niger (osteichthyes: doradidae) from the basin of solimões river, amazonas state, brazil, and the relationship between monogenoidean and condition factor.this study describes the parasitic fauna of oxydoras niger from the coari lake, tributary of the medium solimões river, state of amazonas, brazil, and the relationship between the number of monogenoidea and the condition factor. from a total of 27 examined fish, 70.3% were parasitised by at least one parasite species as follows: ichthyophthirius multifiliis (protozoa), chilodonella sp. (protozoa), cosmetocleithrum gussevi, c. confusus, c. parvum and cosmetocleithrum sp. (monogenoidea), paracavis ...201121881805
structure of parasites community in chaetobranchopsis orbicularis (cichlidae), a host from the amazon river system in northern brazil.the aim of this paper was to investigate the component communities of parasites in chaetobranchopsis orbicularis from a tributary of the amazon river system, in northern brazil. in 32 fish examined, 902,551 parasites were collected, including ichthyophthirius multifiliis, piscinoodinium pillulare, sciadicleithrum geophagi, posthodiplostomum sp., clinostomum marginatum, echinorhynchus paranensis, neoechinorhynchus pterodoridis, and dolops longicauda. i. multifiliis was the dominant and abundant p ...201728667520
ectoparasites community in satanoperca jurupari (cichlidae) from the jari river, a tributary from amazon river in northern brazil.the aim of this study was to investigate the gills parasites in satanoperca jurupari from the jari river, state of amapá, in eastern amazon (brazil). the gills of 100% of the hosts were parasitized by ichthyophthirius multifiliis (protozoa), sciadicleithrum juruparii (monogenoidea) genarchella genarchella, posthodiplostomum sp. (digenea) ergasilus coatiarus and argulus multicolor (crustacea), and a total of 27,043 parasites were collected. however, the dominance was of i. multifiliis and there w ...201728746443
parasite communities of the predatory fish, acestrorhynchus falcatus and acestrorhynchus falcirostris, living in sympatry in brazilian amazon.this study investigated the parasite communities of wild acestrorhynchus falcatus and acestrorhynchus falcirostris populations living in sympatry in brazilian amazon. in these two hosts, a total of 12 parasite species e 1-9 parasite species were found per fish, and 10 of these species are metazoans. eight species of parasites were common to both host species and four of them exhibited differences in abundance and/or prevalence. parasite communities of the hosts were taxonomically similar (83%) a ...201627334822
first study on parasites of hemibrycon surinamensis (characidae), a host from the eastern amazon region.this study was the first investigation of communities and infracommunities of parasites of hemibrycon surinamensis. all the fish collected in a tributary of the amazon river were parasitized by one or more parasite species. the brillouin diversity index (hb) was 0.46 ± 0.28 and the mean species richness was 3.5 ± 1.2 parasites per host. a total of 14,734 parasites were collected, including ichthyophthirius multifiliis and piscinoodinium pillulare (protozoa); jainus hexops and tereancistrum sp. ( ...201625271454
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