Parasitism by Monogenoidea in Piaractus mesopotamicus (Characiformes, Characidae) cultivated in Paraná River (Brazil)

Leão, Mariana Stoll; Justo, Márcia Cristina Nascimento; Bueno, Guilherme Wolff; Cohen, Simone Chinicz; Clemente, S.C. São

doi:10.1590/1519-6984.00916

Cited by 7 publications

(1 citation statement)

References 28 publications

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“…So far, species of Piaractus Eigenmann have been found to be parasitized by six species of Monogenoidea, among which Anacanthorus is the parasite genus most represented in this host genus: Anacanthorus penilabiatus Boeger, Husak & Martins, 1995; Anacanthorus spathulatus Kritsky, Thatcher & Kayton 1979; Anacanthorus toledoensis Leão, São Clemente & Cohen, 2015; Mymarothecium ianwhittingtoni Leão, São Clemente & Cohen, 2015; Mymarothecium viatorum Boeger, Piasecki & Sobecka, 2002; Notozothecium janauachensis Belmont-Jégu, Domingues, & Martins, 2004. These parasites have been recorded in Brazil and Peru ( Kritsky et al, 1979 ; Boeger et al, 1995 ; Pamplona-Basilio et al, 2001 ; Martins et al, 2002 ; Cohen & Kohn, 2005 , 2009 ; Lizama et al, 2007 ; Dinis-Vásquez et al, 2014 ; Leão et al, 2015 , 2017 ; Oliveira & Tavares-Dias, 2016 ; Jerônimo et al, 2020 ; Moreira et al, 2019 ). During studies with fish parasites, a new species of Anacanthorus was found parasitizing the gills of a hybrid fish ( P. mesopotamicus x P. brachypomus ) that are commercialized in marketplace located in São Luís Island, Maranhão, Brazil, and another one in the endemic S. brandtii from São Francisco River and are described herein.…”

Section: Introductionmentioning

confidence: 99%

Two new species of Anacanthorus (Monogenoidea, Dactylogyridae) parasitizing serrasalmid fish in Brazil

Silva,

Cohen,

Santos-Clapp

et al. 2024

Rev. Bras. Parasitol. Vet.

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During studies on fish parasites, two new species of Anacanthorus were found parasitizing serrasalmid fishes, Anacanthorus simpliciphallus sp. n. from the hybrid Piaractus mesopotamicus x Piaractus brachypomus and Anacanthorus brandtii sp. n. from Serrasalmus brandtii. Anacanthorus simpliciphallus sp. n. resembles Anacanthorus reginae in the morphology of the male copulatory organ (MCO) and accessory piece but differs from A. reginae in terms of the smaller size of the accessory piece, which corresponds approximately half the size of the MCO and by the presence of a conspicuous metraterm, with a membranous terminal region. Anacanthorus brandtii sp. n. differs from Anacanthorus scapanus by the expansion of the accessory piece, from Anacanthorus jegui by the ratio MCO (male copulatory organ) /AP (accessory piece) and by the expansion of hook shank, from Anacanthorus sciponophallus and A. reginae by the ratio MCO/AP. Anacanthorus brandtii sp. n. can be distinguished from A. reginae and A. simpliciphallus sp.n. by the size of hooks which is similar in A. reginae and A. simpliciphallus sp. n. and dissimilar in A. brandtii sp. n. The two new species also differ from each other by the expansion of shank.

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Section: Introductionmentioning

confidence: 99%

Two new species of Anacanthorus (Monogenoidea, Dactylogyridae) parasitizing serrasalmid fish in Brazil

Silva,

Cohen,

Santos-Clapp

et al. 2024

Rev. Bras. Parasitol. Vet.

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Sodium chloride against Dawestrema cycloancistrium in juvenile Arapaima gigas

Affonso

Queiroz

Ono³

et al. 2022

Aquacult Int

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The aim of the present study was to assess the use of sodium chloride (NaCl) against monogenoid infestations in pirarucu (Arapaima gigas). Two assays were conducted with pirarucu juveniles, the rst comprising an in vitro exposure to 8; 9; 10 and 11 g.L − 1 NaCl and comparison to controls not exposed to NaCl, and the second, an in vivo exposure to NaCl at the same concentrations applied in the in vitro exposure. The best in vitro results were observed for one hour exposures at 9, 10 and 11 g.L − 1 NaCl, resulting in 60% and 100% parasite mortality, respectively. In vivo exposures to 8 and 10 g.L − 1 NaCl were 36 and 22% e cient, respectively, following two hours of exposure, with no mortality. Some dosedependent changes were observed in exposed sh, such as decreased hemoglobin and HCM values at the highest NaCl concentration compared to the other NaCl concentrations and the control group. More frequent gill tissue alterations were observed compared to the control group at the highest NaCl concentrations (10 and 11 g.L − 1 ). Decreased mean (p < 0.05) water pH values and increased mean electrical conductivity were noted compared to the control group. Our ndings suggest that NaCl exhibits low toxicity towards pirarucu and anthelmintic activity to the monogenoid Dawestrema cycloancistrium, directly in uenced by exposure time and concentration.

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A New Species of Mymarothecium tantaliani n. sp (Monogenea: Dactylogiridae) in the Gills of Gamitana Colossoma macropomum (Cuvier) from Madre de Dios, Peru

et al. 2020

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Parasitism by Monogenoidea in Piaractus mesopotamicus (Characiformes, Characidae) cultivated in Paraná River (Brazil)

Cited by 7 publications

References 28 publications

Two new species of Anacanthorus (Monogenoidea, Dactylogyridae) parasitizing serrasalmid fish in Brazil

Two new species of Anacanthorus (Monogenoidea, Dactylogyridae) parasitizing serrasalmid fish in Brazil

Sodium chloride against Dawestrema cycloancistrium in juvenile Arapaima gigas

A New Species of Mymarothecium tantaliani n. sp (Monogenea: Dactylogiridae) in the Gills of Gamitana Colossoma macropomum (Cuvier) from Madre de Dios, Peru

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