DAO 57:163-165 (2003)  -  doi:10.3354/dao057163

Effect of epidermal papillomatosis on survival of the freshwater fish Rutilus rutilus

Raine Kortet1,*, Anssi Vainikka1, Jouni Taskinen 1,2

1Department of Biological and Environmental Science, University of Jyväskylä, PO Box 35, 40014 Jyväskylä, Finland
2Institute of Applied Biotechnology, University of Kuopio, PO Box 1627, 70211 Kuopio, Finland

ABSTRACT: Epidermal papillomatosis occurs in several marine and freshwater fish species. Previously, papillomatosis has been shown to induce mortality in juvenile carp. We studied the effect of epidermal papillomatosis on the survival of adult male roach Rutilus rutilus by caging naturally diseased, marked (by us) fish in the field. Within the constraints of the experimental design, there was no difference in survival between healthy, slightly diseased and heavily diseased fish. Therefore, we conclude that the possible effect of epidermal papillomatosis on the mortality of wild roach is relatively minor.


KEY WORDS: Spawning papillomatosis · Virulence · Papilloma · Tumour


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