Honors College Thesis
 

An Investigation of Ceratomyxa shasta sporulation following death of itsChinook salmon host

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  • As pre-spawning mortality (PSM) in Chinook salmon in the Willamette River Valley becomes a more defined and examined area of study, more focus is granted to not only preserving the health of these fish, but also expanding knowledge concerning various pathogens that utilize the salmon as hosts and may be associated with PSM. One such parasite, a myxozoan named Ceratomyxa shasta, has been known to be extremely detrimental to salmon health, yet little literature exists concerning what exactly happens to this parasite once the salmon die. This thesis briefly outlines the complexity regarding this parasite’s relationship with the Chinook salmon, offers some context to transmission dynamics, and explores a recent investigation conducted over the course of the 2013-2014 academic year to determine the capability of Ceratomyxa shasta to live, continue to develop, and sporulate following the death of one of its hosts, the Chinook salmon.
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