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Myxozoan parasites disseminated via oligochaete worms as live food for aquarium fishes: descriptions of aurantiactinomyxon and raabeia actinospore types
- Hallett, S. L. (author)
- Atkinson, S. D. (author)
-
- Erséus, Christer, 1951 (author)
- Gothenburg University,Göteborgs universitet,Zoologiska institutionen,Department of Zoology
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- El-Matbouli, M. (author)
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- (creator_code:org_t)
- 2006
- 2006
- English.
- In: Diseases of Aquatic Organisms. - 0177-5103. ; 69:2-3, s. 213-225
- Journal article (peer-reviewed)
Abstract
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- A total of 7 samples of live freshwater oligochaetes (mixed species), sold as 'tubifex' worms as food for aquarium fishes, were purchased over a 1 yr period from several pet shops in Munich, Germany, and screened for parasitic infections of myxozoans. The water associated with 5 samples contained actinospores at the time of purchase; 6 samples subsequently released spores in the laboratory. In all, 12 types of actinospores (Myxozoa: Myxosporea) from 4 collective groups were released by the oligochaetes. In the current study we provide descriptions of 2 aurantiactinomyxons (Myxobolus intimus Zaika, 1965 and type 1 nov.) and 3 raabeias (type 1 and 2 nov., Raabeia type 1 of Oumouna et al., 2003); descriptions of the 5 triactinomyxon and 2 hexactinomyxon types have been published previously. We include both raabeia and echinactinomyxon types in differential diagnoses of our raabeia forms because a clear distinction between these groups no longer exists in the literature. Comparison of 18S rDNA sequence data revealed that 1 of the novel aurantiactinomyxons was Myxobolus intimus. The sale of worms hundreds of km away from their point of origin is a means of dissemination of myxozoan parasites.
Subject headings
- NATURVETENSKAP -- Biologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences (hsv//eng)
Keyword
- actinospore
- myxozoa
- oligochaete
- pet shop
- parasite dispersal
- carp cyprinus-carpio
- life-cycle
- thelohanellus-hovorkai
- myxobolus-cerebralis
- branchiura-sowerbyi
- myxosporean stages
- molecular evidence
- whirling disease
- tubifex-tubifex
- algonquian park
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- ref (subject category)
- art (subject category)
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- University of Gothenburg
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