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ZAGO,ALINE C.; YAMADA,FÁBIO H.; FRANCESCHINI,LIDIANE; BONGIOVANI,MARCELA F.; YAMADA,PRISCILLA O.F.; SILVA,REINALDO J. DA. |
ABSTRACT The present study describes Tereancistrum flabellum n. sp. (Dactylogyridae, Ancyrocephalinae) from the gills of the anostomid fishes Leporinus friderici, Leporinus amblyrhynchus and Leporinus elongatus from two freshwater ecosystems in the south east of Brazil. This new species is mainly characterized by the morphology of the copulatory complex (such as the MCO base formed by two fan-shaped structures, and accessory piece flattened, curved, rigid and channeled), a dorsal anchor with a well-developed superficial and inconspicuous deep root, and the shape of the accessory anchor sclerite with small spathulate termination. Tereancistrum flabellum n. sp. is the first record of a dactylogyrid from L. amblyrhynchus. The description of Tereancistrum... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ancyrocephalinae; Anostomid fish; Gill ectoparasites; Monogeneans; Neotropical region. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000301121 |
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DIAS,KARINA G.A; ALVES,CARLOS A.; SILVA,REINALDO J. DA; ABDALLAH,VANESSA D.; AZEVEDO,RODNEY K. DE. |
ABSTRACT The parasites are indicative of several biological aspects of their hosts, including their diet, migration, recruitment and phylogeny, but they can also be direct indicators of the environmental quality. Hoplosternum littorale is a fish that has a high commercial value in some South American countries. The fishes were collected from January to July 2012, in two locations of the Peixe River in the municipality of Anhembi, State of São Paulo, Brazil, which had different environmental and limnological characteristics (river mouth and Lagoa Cabeça de Boi). An amount of 30 fish specimens were captured in each location for the analysis of their parasitic fauna. Nine species of metazoan parasites were collected. Both Brillouin`s diversity index and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioindicators; Callichthyidae; Parasites; Peixe River; São Paulo. |
Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502317 |
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