Susceptibility of pike-perch Sander lucioperca to a panel of ranavirus isolates

Britt Bang Jensen, Riikka Holopainen, Hannele Tapiovaara, Ellen Ariel

    Research output: Contribution to journalJournal articleResearchpeer-review

    Abstract

    The host range of ranaviruses was investigated by challenging pike-perch (Sander lucioperca) with the following ranavirus isolates: epizootic haematopoietic necrosis virus (EHNV), European sheatfish virus (ESV), European catfish virus (ECV), pike-perch iridovirus (PPIV), short-finned eel virus (SERV) and frog virus 3 (FV3). Pike-perch fry were bath-challenged at 12°C and 22°C at 5weeks post hatching, and the challenge was repeated with EHNV and PPIV in older fish (15weeks post hatching) at higher densities. A third batch of fish was subjected to intraperitoneal (i.p.) and cohabitation challenge with EHNV, ESV, ECV and PPIV at 16°C. Statistically significant mortality was observed in EHNV-challenged fish at both temperatures in the five week old fish. No mortalities were seen in older fish challenged with EHNV and PPIV. High mortalities were registered in i.p.-challenged fish, but not in cohabitated fish. Virus re-isolation was possible from the youngest bath-challenged fish in all challenge trials and the i.p.-challenged fish, but not from older fish or cohabitated fish. Susceptibility of pike-perch to ranaviruses appears to be dependent on age of fish and challenge route. The study shows that pike-perch are susceptible to infection with ranavirus under certain conditions, and it is suggested that this be considered when reviewing the legislation on notifiable diseases.
    Original languageEnglish
    JournalAquaculture
    Volume313
    Issue number1-4
    Pages (from-to)24-30
    ISSN0044-8486
    DOIs
    Publication statusPublished - 2011

    Keywords

    • Challenge trial
    • Ranavirus
    • Fish virus
    • Pike-perch
    • EHNV

    Fingerprint

    Dive into the research topics of 'Susceptibility of pike-perch Sander lucioperca to a panel of ranavirus isolates'. Together they form a unique fingerprint.

    Cite this