Susceptibility of spotted wolffish Anarhichas minor to experimental infection with nodavirus and infectious pancreatic necrosis virus

Diseases of Aquatic Organisms

Elisabeth Rasmussen¹  Ann-Inger Sommer¹  Mette Amundsen Strand¹  Saskia Mennen¹ 

关键词: Viral nervous necrosis;    VNN;    Viral encephalopathy and retinopathy;    VER;    Nodavirus;    Infectious pancreatic necrosis;    IPN;    IPN virus;    Spotted wolffish;   

DOI  :  10.3354/dao059101

学科分类：生物科学（综合）

来源: Inter-Research

【 摘 要 】

ABSTRACT: The spotted wolffish Anarhichas minor is a promising new species for cold-water aquaculture. The broad host-range of piscine nodavirus (NV) and infectious pancreatic necrosis virus (IPNV) makes them potentially pathogenic to new fishspecies in aquaculture. IPNV and NV strains highly pathogenic in farmed Atlantic salmon Salmo salar and halibut Hippoglossus hippoglassus, respectively, in Norway were used for the challenge of spotted wolffish. In general, water-borneinfection with IPNV and NV resulted in significant mortality among juveniles <1 g. Cumulative mortality after bath-challenge and cohabitation was 60 to 75% in the smallest juveniles (0.3 g). Intramuscular and intraperitoneal injection of NV was 100%lethal to wolffish of 10 g, and the groups at 12°C died before those at 7°C. No cohabitants of this size died, but NV was still detectable in these individuals after 10 wk. A persistent IPNV infection with low mortality developed in bath-challengedjuveniles of 0.7 g, in which IPNV was still detectable 4 mo later. This study comprises a demonstration of experimental viral infections in cultured spotted wolffish, although to date no natural outbreaks of viral diseases have been reported in thisspecies.

【 授权许可】

Unknown