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Detection of Myxobolus ( Myxosoma ) cerebralis in Salmonid Fishes in Oregon
Author(s) -
Lorz H. V.,
Amandi A.,
Banner C. R.,
Rohovec J. S.
Publication year - 1989
Publication title -
journal of aquatic animal health
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.507
H-Index - 52
eISSN - 1548-8667
pISSN - 0899-7659
DOI - 10.1577/1548-8667(1989)001<0217:dommci>2.3.co;2
Subject(s) - myxobolus , biology , fish <actinopterygii> , parasite hosting , sampling (signal processing) , myxozoa , spore , myxosporea , zoology , fishery , ecology , microbiology and biotechnology , engineering , computer science , filter (signal processing) , gill , world wide web , electrical engineering
Myxobolus ( Myxosoma ) cerebralis , the etiological agent of whirling disease, was detected in salmonid fish populations in northeastern Oregon. This is the first record of M. cerebralis in the Pacific Northwest of the USA. During an epizootiological survey for the parasite, two methods for spore detection were compared, and an efficient procedure for determining M. cerebralis infection in adult fish was developed. The enzyme digest method was more efficient than the plankton centrifuge procedure for examination of numerous individual lots of fish processed during the survey. Sampling only the area around the otoliths was at least as effective as sampling entire heads for detection of spores in infected fish.