Results 31 to 40 of about 908 (173)

Myxobolus freitasi n. sp. (Myxozoa: Bivalvulida), a parasite of the brain of the electric knifefish in the Brazilian Amazon region

open access: yesRevista Brasileira de Parasitologia Veterinária, 2021
A total of 30 specimens of the Amazonian electric knifefish, Brachyhypopomus beebei Schultz, 1944 (Gymnotiformes: Hypopomidae), were collected from the Peixe-Boi River in the state of Pará, Brazil (1°06’59” S; 47°18’26” W).
José Ledamir Sindeaux-Neto   +6 more
doaj   +1 more source

Systematic Review of Parasite Diversity in Wild Freshwater Fishes and Their Host‐Locality Interactions in Türkiye

open access: yesZoologica Scripta, EarlyView.
ABSTRACT This systematic review documented a taxonomically diverse parasite fauna of freshwater fishes across seven geographical regions of Türkiye, encompassing 11 phyla: Acanthocephala, Annelida, Arthropoda, Choanozoa, Ciliophora, Cnidaria, Euglenozoa, Mollusca, Myzozoa, Nematoda, and Platyhelminthes.
Canan Hamurkaroğlu   +3 more
wiley   +1 more source

A genome wide survey reveals multiple nematocyst-specific genes in Myxozoa

open access: yesBMC Evolutionary Biology, 2018
Background Myxozoa represents a diverse group of microscopic endoparasites whose life cycle involves two hosts: a vertebrate (usually a fish) and an invertebrate (usually an annelid worm). Despite lacking nearly all distinguishing animal characteristics,
Erez Shpirer   +3 more
doaj   +1 more source

Myxosporea (Myxozoa, Cnidaria) Lack DNA Cytosine Methylation [PDF]

open access: yesMolecular Biology and Evolution, 2020
Abstract DNA cytosine methylation is central to many biological processes, including regulation of gene expression, cellular differentiation, and development. This DNA modification is conserved across animals, having been found in representatives of sponges, ctenophores, cnidarians, and bilaterians, and with very few known instances of ...
Ryan Kyger   +10 more
openaire   +2 more sources

Metabarcoding of Broad‐Diet Nototheniid Fish Stomachs Reveals Newly Detected Antarctic Parasite Signals and Potential Host Associations

open access: yesEnvironmental DNA, Volume 8, Issue 4, July‐August 2026.
Using 18S rDNA metabarcoding of stomach contents from two Antarctic nototheniid fishes, we detected 242 parasite OTUs. Protists dominated diversity, metazoans dominated abundance, and depth structured assemblages. Novel parasite–host associations and previously unreported pathogenic protists highlight fish metabarcoding as a tool for biodiversity and ...
Micaela B. Ruiz   +6 more
wiley   +1 more source

Morphological and molecular characterization of Henneguya cystigena n. sp. (Cnidaria, Myxosporea) parasitizing the alimentary tract of yellowfin seabream, Acanthopagrus latus, in the East China Sea

open access: yesParasite
A novel myxosporean species was identified. The species formed spherical to ellipsoidal pseudocysts within the alimentary tract wall of a yellowfin seabream Acanthopagrus latus fished in the East China Sea.
Zhang Bo, Yin Fei
doaj   +1 more source

Rapid Clearance of Tetracapsuloides bryosalmonae Spores by Freshwater Sponge Ephydatia muelleri: Potential Implications for Controlling Proliferative Kidney Disease in Salmonids

open access: yesJournal of Fish Diseases, Volume 49, Issue 6, June 2026.
ABSTRACT Host–parasite interactions are influenced by both abiotic and biotic factors. While abiotic drivers, particularly temperature, have received considerable attention in recent years due to global climate change, the role of biotic factors remains comparatively underexplored.
Lauri Saks   +4 more
wiley   +1 more source

Immunological memory in a teleost fish: common carp IgM+ B cells differentiate into memory and plasma cells

open access: yesFrontiers in Immunology
From ancient cold-blooded fishes to mammals, all vertebrates are protected by adaptive immunity, and retain immunological memory. Although immunologists can demonstrate these phenomena in all fish, the responding cells remain elusive, without the tools ...
Justin Tze Ho Chan   +13 more
doaj   +1 more source

Henneguya spp. (Myxozoa, Myxosporea, Myxobolidae) parasitizing fishes from Paraná river, Brazil - DOI: 10.4025/actascibiolsci.v20i0.4467

open access: yesActa Scientiarum: Biological Sciences, 2008
O exame das brânquias de 240 espécimes de peixes do rio Paraná, região de Porto Rico, Paraná, Brasil, mostrou que cinco espécies possuíam pequenos cistos, cuja observação revelou constituírem plasmódios de Henneguya spp. (Myxozoa, Myxosporea, Myxobolidae)
Gilberto Cezar Pavanelli   +2 more
doaj   +1 more source

A Scoping Review of Naturally Occurring Xenomas in Fish: Clinical Features, Diagnostic Approaches, and Knowledge Gaps

open access: yesParasitologia
Xenomas are distinctive hypertrophic host-cell lesions caused by intracellular parasites and represent a recurrent pathological finding in wild and farmed fish.
Alessia Mariacher   +8 more
doaj   +1 more source

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