Infections of Gyrodactylus crysoleucas and Gyrodactylus sp. (Monogenea) at a Golden Shiner (Notemigonus crysoleucas) Farm in Minnesota

Leis, Eric; King, Stanley D.; Leis, Sarah; Cone, David K.

doi:10.1654/1525-2647-83.1.105

Cited by 11 publications

(26 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Overall, the haptoral morphology of G. ellae n. sp. is reminiscent of G. dechtiari Hanek & Fernando, 1971 known from Nearctic riffle daces of the genus Rhinichthys Agassiz, 1849 [ 53 , 54 , and references herein], and G. laevisoides King, Cone, Mackley & Bentzen, 2013 from the northern redbelly dace Chrosomus eos Cope, 1861 [ 46 ]. Gyrodactylus ellae n. sp.…”

Section: Resultsmentioning

confidence: 99%

“…from captive N. crysoleucas , which is genetically identical to G. hanseni n. sp. (see below), Leis et al [ 54 ] assumed this species (holotype of poor quality) to be G. variabilis Mizelle & Kritsky, 1967 [ 68 ] formally described from non-native N. crysoleucas (introduced in California, see [ 90 ]). The sizes of haptoral sclerites in specimens from L. chrysocephalus and S. atromaculatus considerably overlap with those in Gyrodactylus sp.…”

Section: Resultsmentioning

confidence: 99%

“…vs. 12–14 μm in G. variabilis ). Leis et al [ 54 ] reported further differences in the shape of the sickle of the marginal hooks (a more compact sickle in Gyrodactylus sp. from N. crysoleucas vs. a long and thin one in G. variabilis ).…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Revealing the hidden diversity of Gyrodactylus communities (Monogenea, Gyrodactylidae) from Nearctic Catostomidae and Leuciscidae fish hosts (Teleostei, Cypriniformes), with descriptions of ten new species

Rahmouni,

Seifertová,

Šimková

2023

Parasite

View full text Add to dashboard Cite

Despite the high diversity of freshwater fishes in the Nearctic region, little is known about the composition of their parasite communities. We addressed the diversity of viviparous monogeneans of Gyrodactylus parasitizing highly diversified cypriniform fish inhabiting Nearctic watersheds. Nowadays, a thorough assessment of Gyrodactylus spp. diversity requires both morphological traits and genetic data. A combination of taxonomically important haptoral features and sequences of the ITS regions and 18S rDNA revealed 25 Gyrodactylus spp. parasitizing two catostomid and 15 leuciscid species sampled in six distinct localities in the United States and Canada. These include ten Gyrodactylus species recognized as new to science and described herein (G. ellae n. sp., G. hamdii n. sp., G. hanseni n. sp., G. huyseae n. sp., G. kuchtai n. sp., G. lummei n. sp., G. mendeli n. sp., G. prikrylovae n. sp., G. scholzi n. sp., and G. steineri n. sp.), seven already known species, and finally eight undescribed species. Overall, Nearctic Gyrodactylus spp. exhibited haptoral morphotypes known from fish hosts worldwide and those apparently restricted to Nearctic Gyrodactylus lineages like the typical ventral bar with a median knob and a plate-like membrane, or the additional filament attached to the handles of marginal hooks. The integrative approach further evidenced possible ongoing gene flow, host-switching in generalist Gyrodactylus spp., and regional translocation of monogenean fauna through fish introductions. The study highlights the hitherto underexplored morphological and genetic diversity of viviparous monogeneans throughout the Nearctic region.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Revealing the hidden diversity of Gyrodactylus communities (Monogenea, Gyrodactylidae) from Nearctic Catostomidae and Leuciscidae fish hosts (Teleostei, Cypriniformes), with descriptions of ten new species

Rahmouni,

Seifertová,

Šimková

2023

Parasite

View full text Add to dashboard Cite

show abstract

“…This paper focuses on the genus Gyrodactylus , which occurs on freshwater fish throughout North America (American Fisheries Society 2014). The genus Gyrodactylus represents a hyper‐diverse group of viviparous parasites that are capable of reaching high densities (Cone and Odense 1984) and persisting for long periods of time in captive fish populations (Leis et al 2016). Morbidity and mortality are generally not associated with Gyrodactylus infestations (the European species G. salaris is a notable exception), although clinical signs of disease and mortalities have been observed with some North American Gyrodactylus spp.…”

Section: Introductionmentioning

confidence: 99%

Efficacy of hydrogen peroxide to reduce Gyrodactylus species infestation density on four fish species

et al. 2023

View full text Add to dashboard Cite

Objective The ability to effectively treat parasitic infestations of fish is of high importance for fish culture facilities. However, tools or approved therapies for treating infestations on fish are limited. This paper summarizes results from four separate clinical field studies that evaluated the efficacy of hydrogen peroxide (H2O2; 35% PEROX‐AID) for reducing Gyrodactylus spp. infestation density. Methods Three species of Gyrodactylus were studied (G. salmonis, hosts: Brook Trout Salvelinus fontinalis and Lake Trout S. namaycush; G. freemani, host: Yellow Perch Perca flavescens; G. hoffmani, host: Fathead Minnow Pimephales promelas) before and after the application of immersion H2O2 therapy. Result Parasite density was significantly reduced for each parasite × host combination to which H2O2 therapy was applied. Two clinical field studies in salmonids were found to demonstrate substantial effectiveness that enabled 35% PEROX‐AID approval. Conclusion Further assessments of Gyrodactylus spp. could expand the use of H2O2 for controlling these parasites in aquaculture. Specifically, H2O2 was effective at all levels tested (50 or 75 mg H2O2/L for 60 min for the Yellow Perch and Fathead Minnow clinical field studies; 100 or 150 mg H2O2/L for 30 min regardless of salt pre‐treatment for the Brook Trout study; and 100 mg H2O2/L for 30 min or 50 mg H2O2/L for 60 min for the Lake Trout study).

show abstract

“…Although potentially coincidental, all Gyrodactylus species that infect salmonids, except Gyrodactylus colemanensis Mizelle andKritsky, 1967 (You et al, 2011), belong to this group. This subgenus is primarily restricted to freshwaters of the Old World, with the only continental outliers confirmed through molecular methods being Gyrodactylus salmonis Yin and Sproston, 1948, on salmonids and Gyrodactylus crysoleucas Mizelle and Kritsky, 1967, from a commercially farmed cyprinid, Golden Shiner Notemigonus crysoleucas (Leis et al, 2016). Morphologically identified North American species Gyrodactylus nerkae Cone, Beverley-Burton, Wiles, andMcDonald, 1983 (Cone et al, 1983) and Gyrodactylus lucii Kulakovskaya, 1952 (Cone and Dechtiar, 1986) have not yet received molecular confirmation regarding their placement within this clade.…”

mentioning

confidence: 99%

Global Phylogeography of Salmonid Ectoparasites of the Genus Gyrodactylus, with an Emphasis on the Origin of the Circumpolar Gyrodactylus salmonis (Platyhelminthes: Monogenea)

Leis¹,

Kim²,

Lumme³

2021

Comparative Parasitology

Self Cite

View full text Add to dashboard Cite

show abstract

Infections of Gyrodactylus crysoleucas and Gyrodactylus sp. (Monogenea) at a Golden Shiner (Notemigonus crysoleucas) Farm in Minnesota

Cited by 11 publications

References 17 publications

Revealing the hidden diversity of Gyrodactylus communities (Monogenea, Gyrodactylidae) from Nearctic Catostomidae and Leuciscidae fish hosts (Teleostei, Cypriniformes), with descriptions of ten new species

Revealing the hidden diversity of Gyrodactylus communities (Monogenea, Gyrodactylidae) from Nearctic Catostomidae and Leuciscidae fish hosts (Teleostei, Cypriniformes), with descriptions of ten new species

Efficacy of hydrogen peroxide to reduce Gyrodactylus species infestation density on four fish species

Global Phylogeography of Salmonid Ectoparasites of the Genus Gyrodactylus, with an Emphasis on the Origin of the Circumpolar Gyrodactylus salmonis (Platyhelminthes: Monogenea)

Contact Info

Product

Resources

About