Cyprinid herpesvirus 3 as a potential biological control agent for carp (Cyprinus carpio) in Australia: Susceptibility of non-target species Academic Article uri icon

abstract

  • Carp (Cyprinus carpio L.) is a pest species in Australian waterways, and cyprinid herpesvirus 3 (CyHV-3) is being considered as a potential biological control (biocontrol) agent. An important consideration for any such agent is its target specificity. In this study, the susceptibility to CyHV-3 of a range of non-target species (NTS) was tested. The NTS were as follows: 13 native Australian, and one introduced, fish species; a lamprey species; a crustacean; two native amphibian species (tadpole and mature stages); two native reptilian species; chickens; and laboratory mice. Animals were exposed to 100-1000 times the approximate minimum amount of CyHV-3 required to cause disease in carp by intraperitoneal and/or bath challenge, and then examined clinically each day over the course of 28┬ádays post-challenge. There were no clinical signs, mortalities or histological evidence consistent with a viral infection in a wide taxonomic range of NTS. Furthermore, there was no molecular evidence of infection with CyHV-3, and, in particular, all RT-PCRs for viral mRNA were negative. As a consequence, the results encourage further investigation of CyHV-3 as a potential biocontrol agent that is specific for carp.

authors

  • Mccoll, KA
  • Sunarto, A
  • Slater, J
  • Bell, K
  • Asmus, M
  • Fulton, W
  • Hall, K
  • Brown, P
  • Gilligan, D
  • Hoad, J
  • Williams, LM
  • Crane, MSJ

publication date

  • 2016