Acronym NA
Category
Aquaculture
Title Proliferative gill disease in Atlantic salmon: pathology, microbiology and epidemiology Programme National Programme
Instrument (FP6)
Contact Type (FP7)
Strand (Interreg)
NA
Theme (FP7)
Activity Area (FP6)
Regional Area (Interreg)
Action (COST)
NA
Specific Programme (FP7)
NA
Funding source National Coordinator Anne-Gerd Gjevre Coordinator email anne-gerd.gjevre@vetinst.no
Coordinator institution
NVI - Norwegian Veterinary Institute (Norway)
Institutions involved
NA
Start year 2012 End year 2014 Funding (€) € 752,349 Website NA Summary Proliferative gill diseases cause great losses in mariculture of Atlantic salmon in Norway, especially in the autumn. This is a multifactorial disease, and a number of infectious and non-infectious factors are linked to the condition. The disease develops over time and is often subclinical. Increased mortality rates are observed in stressful situations as delousing. The project has collected gill tissue from commercial seawater sites with increased mortality caused by gill diseases. The tissue is analysed by PCR and histology to investigate the possible role of specific pathogens as Ca' Branchiomonas cysticola, Ca' Piscichlamydia salmonis, Desmozoon lepeophterii and Paramoeba perurans. A histopathological gill-scoring system is established and infection trials are carried out.
The main objective of the project is to increase the knowledge on and investigate the relationship between different etiological agents in proliferative gill disease in sea-farmed Atlantic salmon in Norway. Sub goals: (1) Collect and analyse gill tissue from commercial fish in outbreaks of disease as well as long term studies; (2) Establish a histopathological gill-scoring system; (3) Establish in situ hybridization techniques; (4) Investigate the association between gill pathology and microbial agents; (5) Carry out infection trials to fulfil Koch's postulates; (6) Defining risk factors for disease at site level; (7) Dissemination of knowledge to the industry.
Keywords
Disease;
Risk assessment;
Salmon;
Fish health;
Cage aquaculture;
Open sea aquaculture;
Fish;
Marine Region
41
Norwegian Sea (27.IIa)
1
Marine Region Map
