An Examination of Environmental Factors Associated withMyxobolus cerebralisInfection of Wild Trout in Pennsylvania

Autor: William E. Sharpe, Charlotte Rasmussen, Adam J. Kaeser
Rok vydání: 2006
Předmět:
Zdroj: Journal of Aquatic Animal Health. 18:90-100
ISSN: 1548-8667
0899-7659
DOI: 10.1577/h05-017.1
Popis: Salmonid whirling disease, caused by the myxosporean parasite Myxobolus cerebralis, was first observed in the United States in 1956 in central Pennsylvania. The parasite was subsequently discovered at several culture facilities throughout the state, and widespread distribution of this parasite via the stocking of subclinically infected brook trout Salvelinus fontinalis, rainbow trout Oncorhynchus mykiss, and brown trout Salmo trutta has been assumed. Although no monitoring of wild populations occurred until the late 1970s, it is a common belief that epizootics of whirling disease, now realized in the Intermountain West, are unlikely to have occurred in Pennsylvania. We conducted a review of historical information and a synoptic survey aimed at identifying factors that may prevent whirling disease outbreak in this region, reasoning that such information might be useful in identifying management strategies for populations affected by this parasite. Here we present data on parasite prevalence, fish ...
Databáze: OpenAIRE
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