Occurrence and control of Chilodonella spp. in pejerrey Odontesthes bonariensis

Fernandes, João Morato; Portelinha, Mauro Kaster; Rocha, Cleber Bastos; Pouey, Juvêncio Luís Osório Fernandes; Piedras, Sérgio Renato Noguez

doi:10.1590/s0102-09352011000300039

Cited by 4 publications

(2 citation statements)

References 3 publications

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“…The dinoflagellate Piscinoodinium pillulare (Martins et al, 2001) and the ciliate Ichthyophthirius multifiliis (Tavares-Dias et al, 2001) were reported in farmed freshwater fish. In addition, Fernandes et al (2011) have reported Chilodonella sp. on Odontesthes bonariensis (Atherinopsidae) in southern Brazil and Silva et al (2011) have reported Chilodonella sp.…”

Section: Introductionmentioning

confidence: 99%

First record of Chilodonella hexasticha (Ciliophora: Chilodonellidae) in Brazilian cultured fish: A morphological and pathological assessment

Pádua

Martins

Mauad

et al. 2013

Veterinary Parasitology

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Chilodonelids are small ciliated protozoans found worldwide and can be dangerous in culture conditions. This study presents morphometric data on the ciliate Chilodonella that is found in cultured Nile tilapia (Oreochromis niloticus), native bait fish tuvira (Gymnotus aff. inaequilabiatus) and native pacu (Piaractus mesopotamicus) and includes a histopathological assessment of the changes that occur in the pacu. For parasitic diagnosis, skin and gill samples were scraped onto slides, dried at room temperature, stained with Giemsa or impregnated with silver nitrate, and the measurements were obtained from photomicrographs. In the diseased pacu, the first gill arch was collected and fixed in a 10% buffered formalin solution for histopathological analysis. Parasite specimens from the different collection sites were identified morphologically as C. hexasticha Kiernik (1909). Diseased fish exhibited depigmentation, skin ulceration, scale loss, excessive mucus production and gill lesions. Histopathological analysis of pacu gills displayed epithelial proliferation with mononuclear inflammatory infiltrate, hemorrhages, and scattering necrosis. In Brazilian-farmed fish this is the first record of C. hexasticha, which has great pathogenic potential in cultured freshwater species. In addition, two new hosts are presented.

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Section: Introductionmentioning

confidence: 99%

First record of Chilodonella hexasticha (Ciliophora: Chilodonellidae) in Brazilian cultured fish: A morphological and pathological assessment

Pádua

Martins

Mauad

et al. 2013

Veterinary Parasitology

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show abstract

“…Regarding prevention strategies, the occurrence of chilodonellosis in fish is usually observed in tanks with a high level of ammonia in the water (Fernandes, Portelinha, Rocha, Pouey, & Piedras, ) and is strongly associated with thermal variations (Noga, ). Therefore, the recommended form of preventing infestation is to control the environmental conditions of the water, avoiding the accumulation of organic matter and high concentrations of ammonia and, where possible, avoiding sudden variations in water temperature.…”

Section: Measurements (μM) Of Chilodonella Hexasticha Found On Yellowmentioning

confidence: 99%

A massive Chilodonella hexasticha infestation associated with yellowtail tetra Astyanax lacustris mortality in aquaculture: Identification and pathology

et al. 2019

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First record of facultative parasitism of Chilodonella uncinata based on goldfish (Carassius auratus) infection model

Wang

Gomes

et al. 2021

Aquaculture

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Occurrence and control of Chilodonella spp. in pejerrey Odontesthes bonariensis

Abstract: Communication [Comunicação] Occurrence and control of Chilodonella spp. in pejerrey Odontesthes bonariensis [Ocorrência e controle de Chilodonella spp. em peixe-rei Odontesthes bonariensis]

Cited by 4 publications

References 3 publications

First record of Chilodonella hexasticha (Ciliophora: Chilodonellidae) in Brazilian cultured fish: A morphological and pathological assessment

First record of Chilodonella hexasticha (Ciliophora: Chilodonellidae) in Brazilian cultured fish: A morphological and pathological assessment

A massive Chilodonella hexasticha infestation associated with yellowtail tetra Astyanax lacustris mortality in aquaculture: Identification and pathology

First record of facultative parasitism of Chilodonella uncinata based on goldfish (Carassius auratus) infection model

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