Ceratomyxa

Ceratomyxa

a genus in the class Myxosporea; may or may not be true protozoan.

Ceratomyxa shasta
important parasite of young salmonids limited in occurrence to the Columbia river basin. Causes severe losses in young fish in culture ponds. Signs include swelling at vent, distended abdomen and subcutaneous boils.
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References in periodicals archive ?
Ceratomyxa shasta is a myxozoan parasite and known to cause mortality of juvenile Chinook salmon.
Stocking RW, Holt RA, Foott JS, Bartholomew JL (2006) Spatial and temporal occurrence of the salmonid parasite Ceratomyxa shasta in the OregonCalifornia Klamath River basin.
Nichols K, True K (2007) Investigational report: Monitoring incidence and severity of Ceratomyxa shasta and Parvicapsula minibicornis in juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Klamath river, US Fish and Wildlife Service, California-Nevada Fish Health Center, Anderson, California.
Bjork SJ, Bartholomew JL (2009) Effects of Ceratomyxa shasta dose on a susceptible strain of rainbow trout and comparatively resistant Chinook and coho salmon.
Bjork SJ, Bartholomew JL (2009) The effects of water velocity on the Ceratomyxa shasta infectious cycle.
Ray RA, Holt RA, Bartholomew JL (2012) Relationship between temperature and Ceratomyxa shasta-induced mortality in klamath river salmonids.
Ray RA, Rossignol PA, Bartholomew JL (2010) Mortality threshold for juvenile Chinook salmon Oncorhynchus tshawytscha in an epidemiological model of Ceratomyxa shasta.
Ray RA, Bartholomew JL (2013) Estimation of transmission dynamics of the Ceratomyxa shasta actinospore to the salmonid host.
Nichols K, True K, Wiseman E, Foott S (2007) Investigational report: Incidence of Ceratomyxa shasta and Parvicapsula minibicornis infections by qpcr and histology in juvenile Klamath river Chinook salmon, US Fish and Wildlife Service, California-Nevada Fish Health Center, Anderson, California.
Scientists don't think they'll find a rainbow trout resistant to high tam doses, but Montana's native Kootenai River redbands will be tested this summer, and an Oregon coastal rainbow resistant to the Ceratomyxa shasta parasite will be tested for cross-resistance to M.