| Abstract: | A freshwater angelfish (Pterophyllum scalare) hatchery experienced variable levels of emaciation, poor growth rates, swollen coelomic cavities, anorexia, listlessness, and increased mortality within their fish. Multiple chemotherapeutic trials had been attempted without success. In affected fish, large numbers of protozoa were identified both histologically and ultrastructurally associated with the gastric mucosa. The youngest cohort of parasitized fish was the most severely affected and demonstrated the greatest morbidity and mortality. The protozoa were morphologically most consistent with Cryptosporidium. All of the protozoan life stages were identified ultrastructurally and protozoal genomic DNA was isolated from parasitized tissue viscera and sequenced. Histological, ultrastructural, genetic, and phylogenetic analyses confirmed this protozoal organism to be a novel species of Cryptosporidium. |
| Genre: | Article |
| ProdID: | 70037301 |
| Citation Author: | Murphy, B. G.; Bradway, D.; Walsh, T.; Sanders, G. E.; Snekvik, K. |
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| Citation End Page: | 727 |
| Citation Issue: | 5 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Veterinary Diagnostic Investigation |
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| Citation Number Of Pages: | 6 |
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| Citation Search Results Text: | Gastric cryptosporidiosis in freshwater angelfish (Pterophyllum scalare); 2009; Article; Journal; Journal of Veterinary Diagnostic Investigation; Murphy, B. G.; Bradway, D.; Walsh, T.; Sanders, G. E.; Snekvik, K. |
| Citation Start Page: | 722 |
| Citation Volume: | 21 |
| Citation Year: | 2009 |
| Type: | citation/reference |
| Text: | Gastric cryptosporidiosis in freshwater angelfish (Pterophyllum scalare); 2009; Article; Journal; Journal of Veterinary Diagnostic Investigation; Murphy, B. G.; Bradway, D.; Walsh, T.; Sanders, G. E.; Snekvik, K. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Thu, 1 Jan 2009 00:00 -0600 |
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