Protozoal Diseases

Hadfield, Catherine A.

doi:10.1002/9781119259886.ch27

Cited by 2 publications

(4 citation statements)

References 57 publications

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“…Nevertheless, microscopic identification of trophonts or tomonts is required for definitive diagnosis. 120,159 In Figure 3, we can observe the progression of an A. ocellatum infestation.…”

Section: Fresh Samples Diagnosis Of Amyloodiniosismentioning

confidence: 99%

“…However, it is best to observe trophonts in their diagnostic attachment to the epithelium in the gill tissue, by ablation of the totality or part of the first two gill arches. 24,38,44,120,159 The necessity of early detection and welfare issues lead also to the development of other tools for the detection of A. ocellatum in the tank environment, mainly with the help of genetic tools. 121…”

Section: Fresh Samples Diagnosis Of Amyloodiniosismentioning

confidence: 99%

“…If the fish is parasitized, usually the skin should appear ‘velvety’, with small white spots. Nevertheless, microscopic identification of trophonts or tomonts is required for definitive diagnosis 120,159 . In Figure 3, we can observe the progression of an A. ocellatum infestation.…”

Section: Diagnosismentioning

confidence: 99%

“…Trophonts can be removed by gently brushing or scraping the skin or gills, in the case of fish that cannot be sacrificed, as fish broodstock or aquaria hosts. However, it is best to observe trophonts in their diagnostic attachment to the epithelium in the gill tissue, by ablation of the totality or part of the first two gill arches 24,38,44,120,159 …”

Section: Diagnosismentioning

confidence: 99%

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Amyloodiniosis in aquaculture: A review

Moreira,

Costas,

Rodrigues

et al. 2023

Reviews in Aquaculture

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Fish ectoparasites are one of the pathogens groups that pose great concern to the aquaculture industry. The dinoflagellate Amyloodinium ocellatum is responsible for amyloodiniosis, a parasitological disease with a strong economic impact in temperate and warm water aquaculture, mainly in earthen pond semi‐intensive systems. Amyloodiniosis represents one of the most important bottlenecks for aquaculture and, with the predictable expansion of the area of influence of this parasite to higher latitudes due to global warming it might also be a threat to other aquaculture species that are not yet parasitized by A. ocellatum. This review made a compilation of the existing knowledge about this parasite and the disease associated with it. It was noticed that, except from the life cycle characterisation, detection methods, histopathological analysis, and treatments, there are still a lot of areas that need a further investment in research. Areas like parasite–host interactions, epidemiological models, taxonomy, host physiological responses to parasitism, and genome sequencing, amongst others, can contribute to a better understanding of this disease. These proposed approaches and routes of investigation will enhance and contribute to a more standardised knowledge, creating the opportunity for a better understanding of amyloodiniosis impacts on fish and contributing for the development of new tools against A. ocellatum, that may reduce fish mortality in aquaculture production due to amyloodiniosis outbreaks.

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“…Nevertheless, microscopic identification of trophonts or tomonts is required for definitive diagnosis. 120,159 In Figure 3, we can observe the progression of an A. ocellatum infestation.…”

Section: Fresh Samples Diagnosis Of Amyloodiniosismentioning

confidence: 99%