Rondonia rondoni Travassos, 1920: (Nematoda, Atractidae)

Costa, Salvatore

doi:10.1590/s0074-02761963000100005

Cited by 12 publications

(11 citation statements)

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“…According to Travassos et al (1928) the host may ingest larva or even adult expelled in the feces, due to the large amount of parasites found in the intestine, making up 50% of the feces. Costa (1962) confirmed the breaking of the pregnant female body, thus freeing the larvae to the exterior.…”

Section: Discussionmentioning

confidence: 65%

Ecology of the parasitic endohelminth community of Piaractus mesopotamicus (Holmberg, 1887) (Characiformes) from Aquidauana and Miranda Rivers, Pantanal, state of Mato Grosso do Sul, Brazil

et al. 2009

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In this study the structure and diversity of the endohelminth community, as well as its interactions with 73 specimens of Piaractus mesopotamicus are described. The fish were caught in Aquidauana and Miranda rivers, both located in the Pantantal region, in the state of Mato Grosso do Sul. A total of 608,788 specimens of helminthes were found, representing five species: Dadaytrema oxycephala, Chabaudinema americanum, Spectatus spectatus, Rondonia rondoni and Echinorhynchus jucundum. D. oxycephala was more prevalent (91.78%) followed by R. rondoni (73.97%).

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Section: Discussionmentioning

confidence: 65%

Ecology of the parasitic endohelminth community of Piaractus mesopotamicus (Holmberg, 1887) (Characiformes) from Aquidauana and Miranda Rivers, Pantanal, state of Mato Grosso do Sul, Brazil

et al. 2009

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“…Pacu, Piaractus mesopotamicus (Holmberg, 1887), is an important sport and table fish in South America (Oliveira et al, 2004;Queiroz et al, 2005) that is farmed in aquaculture systems (Oliveira et al, 2004;Queiroz et al, 2005;Urbinati et al, 2013;Valladão et al, 2016). Its parasitic fauna is known (Costa, 1963;Boeger et al, 1995;Martins and Urbinati, 1993;Tavares-Dias et al, 2001;Martins and Onaka, 2004;Campos et al, 2009;Campos et al, 2011;Franceschini et al, 2013). It is common the reports of mortality of pacu affected by these parasites (nematodes and monogeneans) in the Brazilian fish farms.…”

Section: Introductionmentioning

confidence: 99%

Levamisole reduces parasitic infection in juvenile pacu ( Piaractus mesopotamicus )

et al. 2017

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Anthelmintic drugs are successfully used in aquaculture to control parasitic infections or infestations. This study analyzed the effectiveness of levamisole as an antiparasitic and its effect on the liver of juvenile pacu (Piaractus mesopotamicus). A total of 300 fish (180 ± 1.27 g; 16 ± 0.4 cm) were fed a diet containing levamisole hydrochloride (LHC) for fifteen days. A control group (T0) and four treatments were tested: T1 (100), T2 (150), T3 (300) and T4 (500) mg kg −1 LHC in quadruplicate (15 fish per repetition). Four fish per treatment (n = 20) were euthanized by sectioning the spinal cord; the sample was forwarded for parasitological analysis. The gill arches and intestines were removed and preserved in formaldehyde 10% for identification and quantification of the parasites. For evaluation of the liver histology, four fish per treatment (n = 20) were euthanized with benzocaine (100 mg L −1 ) for liver removal. In intestines and gills, we identified the parasites Rondonia rondoni (Nematoda, Atractinae) and Anacanthorus penilabiatus (Monogenoidea, Dactylogyridae), respectively. Both were at high prevalence and intensity of infection and infestation, respectively. The 300 mg kg −1 LHC treatment reduced the infection by R. rondoni but not the infestation by A. penilabiatus. Concentrations of 150 and 300 mg kg −1 LHC caused moderate liver changes, and no changes were observed in fish treated with 100 mg kg −1 LHC. The highest concentration of LHC (500 mg kg −1 ) induced a high occurrence of sinusoid dilation, blood congestion and leukocyte infiltration in fish liver. Our results indicate that LHC (300 mg kg −1 ) was effective in controlling the infection by R. rondoni and caused moderate histological changes in pacu liver.

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“…Their transmission from host to host is not understood. The life cycles of Orientatractis and Rondonia have not been determined, however Costa (1962) believed that larvae of Rondonia (previously known only from fish) pass from the host to infect other fish directly. Petter (1966) claimed that tortoises became infected only after attaining sexual maturity and wondered if transmission occurred during mating.…”

Section: Discussionmentioning

confidence: 99%

“…Oesophagus 380 ± 13 (360-411) in length, divisible into 3 parts: anterior muscular portion 242 ± 10 (232-268) long; middle glandular portion 75 ± 5 (67-85) long; valved bulb 63 (Travassos, 1923;Travassos et al, 1928;Baylis, 1936;Costa, 1962Costa, , 1963Santos et al, 1979;Hamann, 1982;Moravec et al, 1992), and R. lophii Gallego Berenguer, 1947 also from a fish species, Lophius piscatorius, collected on the Cantabrico Coast, Spain (Gallego Berenguer, 1947). Rondonia batrachogena sp.…”

Section: Rondonia Batrachogena Sp Nov (Figs 11-22)mentioning

confidence: 99%

New species of Orientatractis (Nematoda: Atractidae), new species of Rondonia (Nematoda: Atractidae) and other helminths in Austrochaperina basipalmata (Anura: Microhylidae) from Papua New Guinea

Bursey

Goldberg

Kraus

2014

Acta Parasitologica

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Two new nematode species, Orientatractis hamabatrachos sp. nov. and Rondonia batrachogena sp. nov. (Nematoda: Atractidae), from the gastrointestinal tract of Austrochaperina basipalmata (Anura: Microhylidae) collected in Papua New Guinea are described. Orientatractis hamabatrachos sp. nov. is characterized by the presence of the cephalic end armed with 4 wellsclerotized structures, consisting of 2 "horns" extending outward and downward and immediately below a single well-sclerotized spine. It differs from 5 congeners in spicule lengths and caudal papillae arrangements. Rondonia batrachogena sp. nov. is characterized by the presence of a female cloaca. It differs from 2 congeners primarily in body size. Orientatractis hamabatrachos sp. nov. and Rondonia batrachogena sp. nov. represent the first species assigned to either genus found to infect anurans or to occur in the Australo-Papuan region.

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Rondonia rondoni Travassos, 1920: (Nematoda, Atractidae)

Cited by 12 publications

References 0 publications

Ecology of the parasitic endohelminth community of Piaractus mesopotamicus (Holmberg, 1887) (Characiformes) from Aquidauana and Miranda Rivers, Pantanal, state of Mato Grosso do Sul, Brazil

Ecology of the parasitic endohelminth community of Piaractus mesopotamicus (Holmberg, 1887) (Characiformes) from Aquidauana and Miranda Rivers, Pantanal, state of Mato Grosso do Sul, Brazil

Levamisole reduces parasitic infection in juvenile pacu ( Piaractus mesopotamicus )

New species of Orientatractis (Nematoda: Atractidae), new species of Rondonia (Nematoda: Atractidae) and other helminths in Austrochaperina basipalmata (Anura: Microhylidae) from Papua New Guinea

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