Parvicapsula minibicornis n. sp. (Myxozoa, Myxosporea) from the Kidney of Sockeye Salmon (Oncorhynchus nerka) from British Columbia, Canada

A new species of Myxosporea Parvicapsula minibicornis is described from the kidney of adult sockeye salmon (Oncorhynchus nerka) that had recently returned from the Pacific Ocean to Weaver Creek, a tributary of the Fraser River, British Columbia, Canada. Spores are ovoid, symmetrical, with 2 pyriform...

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Bibliographic Details
Published in:The Journal of parasitology 1997-12, Vol.83 (6), p.1153-1156
Main Authors: Kent, Michael L., Whitaker, David J., Dawe, Sheila C.
Format: Article
Language:English
Subjects:
Animals
Biological and medical sciences
Brackish
British Columbia
Capsules
Eukaryota - classification
Eukaryota - isolation & purification
Fish Diseases - parasitology
Fish Diseases - pathology
Freshwater
Fundamental and applied biological sciences. Psychology
Histology
Kidney Diseases - parasitology
Kidney Diseases - pathology
Kidney Diseases - veterinary
Kidney Tubules - parasitology
Kidney Tubules - pathology
Kidneys
Marine
Marine fishes
Oncorhynchus kisutch - parasitology
Oncorhynchus nerka
Parasites
Parasitology
Parvicapsula minibicornis
Protozoa
Protozoan Infections, Animal - parasitology
Protozoan Infections, Animal - pathology
Renal tubules
Salmon
Salmon - parasitology
Spores
Systematics-Phylogenetics
Systematics. Geographical distribution. Morphology. Cytology
Trophozoites
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Description
Summary:A new species of Myxosporea Parvicapsula minibicornis is described from the kidney of adult sockeye salmon (Oncorhynchus nerka) that had recently returned from the Pacific Ocean to Weaver Creek, a tributary of the Fraser River, British Columbia, Canada. Spores are ovoid, symmetrical, with 2 pyriform polar capsules at the anterior pole. The posterior pole has 2 small, pointed projections. Mean spore dimensions are length 11.0 µm, thickness (perpendicular to suture plane) 6.8 µm, and width (in sutural plane) 7.5 µm. This myxozoan is compared to other described Parvicapsula species and a Parvicapsula sp. from netpen-reared coho salmon (Oncorhynchus kisutch).
ISSN:0022-3395
1937-2345
DOI:10.2307/3284376