Host specificity of monogenean ectoparasites on fish skin and gills assessed by a metabarcoding approach

Scheifler, Mathilde; Magnanou, Elodie; Sanchez-Brosseau, Sophie; Desdevises, Yves

doi:10.1016/j.ijpara.2022.02.001

Cited by 6 publications

(3 citation statements)

References 83 publications

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“…Of the two monogenean species observed in this study, the surface dwelling Gyrodactylus gambusiae was by far the least prevalent. Why this species had such a low frequency of occurrence is difficult to ascertain as there does not appear to be any reason to expect greater monogenean numbers on the gills than the skin (Scheifler et al 2022 ). Gyrodactylus gambusiae has remained little studied since its initial description.…”

Section: Discussionmentioning

confidence: 99%

Season, size, and sex: factors influencing monogenean prevalence and intensity on Gambusia affinis in New Zealand

Renner,

Duggan

2024

Parasitol Res

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A number of studies have been conducted on monogenean seasonality, though primarily in continental regions with wide annual temperatures ranges. We investigated seasonal changes in the prevalence and intensity of Salsuginus seculus infesting sexually dimorphic western mosquitofish (Gambusia affinis) in New Zealand. This represents the first examination of seasonality for this species globally, and the first seasonal assessment of any monogenean population in New Zealand, a temperate country with a mild oceanic climate. Prevalence and intensity of S. seculus with respect to fish size and sex was also examined. Prevalence of S. seculus changed temporally, peaking in summer, and was strongly positively correlated with algal concentrations. This relationship may be associated with increasing food levels, leading to an increase in fish courting and mating, resulting in high numbers and close physical associations of G. affinis individuals, facilitating transmission of the monogeneans. Thus, biotic factors may be important in determining temporal changes in S. seculus prevalence in New Zealand. Female G. affinis had a significantly higher prevalence and mean intensity of S. seculus than males. Longer fish had a higher mean intensity and prevalence of S. seculus. Female G. affinis likely host disproportionately more monogeneans as they are larger than males. Alternatively, females may have a compromised immune response during reproductive periods. Overall, seasonal change was observed in S. seculus prevalence and intensity under New Zealand’s mild climatic conditions, and the larger female G. affinis in this dimorphic species supported a greater prevalence and intensity of infestation than males.

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Section: Discussionmentioning

confidence: 99%

Season, size, and sex: factors influencing monogenean prevalence and intensity on Gambusia affinis in New Zealand

Renner,

Duggan

2024

Parasitol Res

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“…Gills are a favorite part for parasites to attach to. This is because the parasite uses the host molecule on the gills as a receptor and tries to avoid the host’s immune system ( Scheifler et al, 2022 ). The presence of parasites in fish gills reduces the gill surface area, causes disturbances of hydromineral balance, increases ATP-ase expression and induces apoptosis in mitochondria-rich cells ( Oğuz & Oğuz, 2020 ).…”

Section: Discussionmentioning

confidence: 99%

Blood glucose profile as a rapid method for observing Koi carp (Cyprinus carpio) health status - case study of ectoparasites in Blitar, Indonesia

Afiyah

Fira

Santanumurti

et al. 2023

Rev. Bras. Parasitol. Vet.

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Assessment of fish health is one of the efforts of farmers in minimizing losses due to disease. Rapid tests on fish health can be done through blood observations. This study aimed to determine the blood glucose profile of koi carp due to ectoparasite infestation from the level of blood glucose. The results showed that reported parasites from Blitar’s koi carp were Trichodina, Dactylogyrus, Gyrodactylus, Myxobolus, Thelohanellus, Ichthyophthirius, and Argulus. Trichodina showed the highest prevalence (100%) in this case while Thelohanellus was the highest intensity level (93.8±16.3). The results of blood glucose level measurement based on parasite infestation levels showed no significant difference (p>0.05) though the health problems caused by parasites in light, medium or heavy infestation. This research also indicated that the blood glucose profile could be used as a rapid method to detect fish health caused by parasites. We suggest that other variables such as nutritional status, life stage or feeding must be conducted to ensure the glucose role in parasite identification as a rapid method for the future work.

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“…This disorder can be caused by other organisms such as parasites (Choe, 2019). Understanding host recognition patterns and mechanisms among parasites has become a dynamic area of research in recent decades (Swann et al, 2015); Mahanta et al, 2018;Scheifler et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

The First Report on the Occurrence of Monogenean Parasite Infestation on Silver Pompano (Trachinotus Blochii) Reared in Floating Net Cage Systems in Indonesia

Amiin,

Rini,

Santanumurti

et al. 2023

J. Adv. Zool.

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This investigation reports a monogenean outbreak infesting silver pompano (Trachinotus blochii) from floating net cages in Indonesia. The diseased fish showed clinical signs of anorexia, and emaciation and were gasping for air at the water's surface. This study was conducted to determine the first report on the occurrence of monogenean parasite infestation in silver pompano Trachinotus blochii reared in floating net cage systems on Lampung water, Indonesia. The parasites collected from the skin and gill were studied using optical binocular microscopy and descriptive analysis. The results showed that the monogenean parasite found infesting silver pompano was Neobenedenia girellae and Pyragraphorus hollisae. N.girellae infested the eyes, head, and lateral surface body, while P.hollisae infested the secondary part of the gill lamellae. The monogenean parasites that were found on 5-15 cm silver pompano had a prevalence of 87.5% and an intensity of 15.40, while the fish with a size of 20-30 cm had a 71.43% prevalence and an intensity of 19.16. In the morphological features, the specimen's parasites were identical to those of monogenean groups. Thus, in this study, we confirmed that the parasites belonged to Nebonedenia girellae and Pyragraphorus hollisae. Therefore, this work provides the first detailed description of an ectoparasite that successfully infests pomfret, and molecular approaches such as DNA Barcoding are needed to provide in-depth information for future taxonomic and phylogenetic studies. Furthermore, this finding can serve as an early warning for relevant authorities and farmers that must be managed with aquaculture decision-makers.

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Host specificity of monogenean ectoparasites on fish skin and gills assessed by a metabarcoding approach

Cited by 6 publications

References 83 publications

Season, size, and sex: factors influencing monogenean prevalence and intensity on Gambusia affinis in New Zealand

Season, size, and sex: factors influencing monogenean prevalence and intensity on Gambusia affinis in New Zealand

Blood glucose profile as a rapid method for observing Koi carp (Cyprinus carpio) health status - case study of ectoparasites in Blitar, Indonesia

The First Report on the Occurrence of Monogenean Parasite Infestation on Silver Pompano (Trachinotus Blochii) Reared in Floating Net Cage Systems in Indonesia

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