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Creator:: Hurst, C. N. and Bartholomew, J. L.
Abstract:: The recent identification of multiple genotypes of the salmonid parasite Ceratonova shasta with different virulence levels in Chinook salmon (Oncorhynchus tshawytscha) suggests that it may be possible to immunize fish against subsequent infection and disease. We hypothesized that exposure of Chinook salmon to the less virulent parasite genotype (II) prior...

Creator:: Hurst, C. N. and Bartholomew, J. L.
Abstract:: The recent identification of multiple genotypes of the salmonid parasite Ceratonova shasta with different virulence levels in Chinook salmon (Oncorhynchus tshawytscha) suggests that it may be possible to immunize fish against subsequent infection and disease. We hypothesized that exposure of Chinook salmon to the less virulent parasite genotype (II) prior...

Creator:: Hurst, C. N. and Bartholomew, J. L.
Abstract:: The recent identification of multiple genotypes of the salmonid parasite Ceratonova shasta with different virulence levels in Chinook salmon (Oncorhynchus tshawytscha) suggests that it may be possible to immunize fish against subsequent infection and disease. We hypothesized that exposure of Chinook salmon to the less virulent parasite genotype (II) prior...

Creator:: Hurst, C. N. and Bartholomew, J. L.
Abstract:: The recent identification of multiple genotypes of the salmonid parasite Ceratonova shasta with different virulence levels in Chinook salmon (Oncorhynchus tshawytscha) suggests that it may be possible to immunize fish against subsequent infection and disease. We hypothesized that exposure of Chinook salmon to the less virulent parasite genotype (II) prior...
Full Text:: to Ceratonova shasta (Myxozoa) Hurst, C. N., & Bartholomew, J. L. (2015). Lack of Protection

Creator:: Hurst, C. N. and Bartholomew, J. L.
Abstract:: The recent identification of multiple genotypes of the salmonid parasite Ceratonova shasta with different virulence levels in Chinook salmon (Oncorhynchus tshawytscha) suggests that it may be possible to immunize fish against subsequent infection and disease. We hypothesized that exposure of Chinook salmon to the less virulent parasite genotype (II) prior...
Resource Type:: Article

Creator:: Ray, R. A. and Bartholomew, J. L.
Abstract:: Transmission dynamics of the actinospore stage of Ceratomyxa shasta to the salmonid host were investigated under field and laboratory conditions. The number of parasites transmitted and the transmission rate were compared between 2 different exposure durations and also among different water velocities, by means of field exposures. Under laboratory conditions,...
Resource Type:: Article
Full Text:: . Ray and J. L. Bartholomew were held in a swim tube (28×5·1 cm). For the 2 slowest velocities, water

Creator:: Atkinson, S. D., Foott, J. S., and Bartholomew, J. L.
Abstract:: Ceratonova gasterostea n. gen. n. sp. is described from the intestine of freshwater Gasterosteus aculeatus L. from the Klamath River, California. Myxospores are arcuate, 22.4 +/- 2.6 μm thick, 5.2 +/- 0.4 μm long, posterior angle 45 +/- 24°, with 2 sub-spherical polar capsules, diameter 2.3 +/- 0.2 μm, which...
Resource Type:: Article
Full Text:: aculeatus) and C. shasta n. comb. from Salmonid Fishes Atkinson, S. D., Foott, J. S., & Bartholomew, J. L

Creator:: Foott, J. S., Stone, R., Fogerty, R., True, K., Bolick, A., Bartholomew, J. L., Hallett, S. L., Buckles, G. R., and Alexander, J. D.
Abstract:: Severe infection by the endemic myxozoan parasite, Ceratonova (synonym, Ceratomyxa) shasta, has been associated with declines in and impaired recovery efforts of populations of fall-run Chinook Salmon Oncorhynchus tshawytscha in the Klamath River, California. The parasite has a complex life cycle involving a polychaete worm host as well as a...
Resource Type:: Article
Full Text:: Health Center, 24411 Coleman Fish Hatchery Road, Anderson, California 96007, USA J. L. Bartholomew, S. L

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