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Diseases of Aquatic Organisms

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DAO 32:9-14 (1998)  -  doi:10.3354/dao032009

Experimental transmission of dermal sarcoma to the sauger Stizostedion canadense

Donald L. Holzschu*, Gregory A. Wooster, Paul R. Bowser**

Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, New York 14853, USA
*Present address: Department of Biological Sciences, 108 Irving Hall, Ohio University, Athens, Ohio 45701-2979, USA
**Addressee for correspondence. E-mail:

Walleye dermal sarcoma virus (WDSV) has been identified as the causative agent of a benign neoplasia of walleye Stizostedion vitreum, walleye dermal sarcoma (WDS). We conducted an experimental transmission regimen to determine if WDSV is capable of inducing dermal sarcoma in the closely related sauger S. canadense. Nearly all of young-of-the-year saugers (96%) inoculated with filtrates of spring-collected tumors developed dermal sarcomas, while all of the inoculated walleyes developed tumors. Most of the sauger tumors were limited to the skin, but invasive tumors, similar to those previously observed in experimental walleyes, were observed in some fish.

Dermal sarcoma · Sauger · Neoplasia · Retrovirus

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