Opercular cyst formation in trout infected with Myxosoma cerebralis.
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External opercular cysts were observed in cutthroat trout, Salmo clarki henshawii affected with whirling disease and revealed numerous spores of Myxosoma cerebralis in their lumen and walls.Abstract:
External opercular cysts were observed in cutthroat trout, Salmo clarki henshawii affected with whirling disease. Microscopic examination of the cysts revealed numerous spores of Myxosoma cerebralis in their lumen and walls. Rupture of these cysts may provide a method of whirling disease transmission from live infected fish.read more
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Journal ArticleDOI
The biology of Myxosoma cerebralis: the causative organism of whirling disease of salmonids.
TL;DR: It is concluded that the presence of M. cerebralis is not an important limiting factor in salmonid fanning per se but only limits methods of production.
Journal ArticleDOI
Histopathological changes in fish gills infected with myxosporidian parasites of the genus Henneguya
I. Dykova,J. Lom +1 more
TL;DR: Tissue reaction to invasion by two Henneguya species was studied in gills of three species of fish, finding evidence that inflammatory responses are of regular occurrence in the final stages of most myxosporidian infections.
Journal ArticleDOI
Characterization of a host response to the myxosporean parasite, Ceratomyxa shasta (Noble), by histology, scanning electron microscopy and immunological techniques
TL;DR: The tissue response of Salmo gairdneri Richardson, against the myxosporean parasite, was investigated using histological techniques, scanning electron microscopy and immunological methods to investigate the immunological component of the host response.
Journal ArticleDOI
Distribution and Abundance of the Aquatic Oligochaete Host Tubifex tubifex for the Salmonid Whirling Disease Parasite Myxobolus cerebralis in the Upper Colorado River Basin
TL;DR: Benthic invertebrate samples were collected from six sites in the upper Colorado River basin in north-central Colorado to determine the distribution, abundance, and infection rates of Tubifex tubifex, the aquatic oligochaete host for the salmonid whirling disease parasite Myxobolus cerebralis.
Journal ArticleDOI
Gill Infection Model for Columnaris Disease in Common Carp and Rainbow Trout
Annelies Declercq,Koen Chiers,Freddy Haesebrouck,W. Van den Broeck,Jeroen Dewulf,Maria Cornelissen,Annemie Decostere +6 more
TL;DR: This is the first study to reveal gill lesions typical for columnaris disease at macroscopic, light microscopic, and ultrastructural levels in both Common Carp and Rainbow Trout following a challenge with F. columnare.
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