The objective of the 2nd meeting was to bring together salmon-farmers, fish health workers and scientists to present and discuss factors/results of significance for management, treatment and control of various gill diseases or conditions in sea-farmed salmon included, but not restricted to, amoebic gill disease (AGD).
The first day of the meeting was devoted to a practical histopathology workshop. Field cases and experimental pathology were presented and the establishment of a common histopathological ‘scoring system’ for gill pathologies was discussed. Days two and three were devoted to plenum presentations from invited speakers and oral presentations from the participants.
The meeting was arranged by the Norwegian Veterinary Institute (NVI) in cooperation with the Norwegian Seafood Research Fund which was the main sponsor of the meeting.
Approximately 130 persons from Norway, Spain, Scotland, Ireland, Canada, Australia and Chile attended the meeting. Not all presentations are available online, and those available are hyperlinked in the text below.
Presentations
- Welcome and introduction to the 2nd GHI meeting – Neil Ruane
- The health situation in Norwegian aquaculture – Brit Hjeltnes (NVI)
- Demonstration of a novel histopathological scoring system for salmonid gills - Mona Gjessing, Norwegian Veterinary Institute (NVI)
- Acute and chronic gill damage in Tasmanian salmon - Barbara Nowak, University of Tasmania
- Intrabranchial lymphoid tissue (ILT) in salmonid fish - Alf Seljenes Dalum, Norwegian School of Veterinary Science, NMBU
- Summary of the gill histopathology workshop - Anne Berit Olsen (NVI)
- AGD situation in south-western part of Norway - David Persson, FOMAS
- AGD situation in Ireland - Hamish Rodger, Vet-Aqua International
- AGD situation in Scotland - Iain Berrill, Scottish Salmon
- AGD situation in Tasmania - Steve Percival, Huon Aquaculture
- AGD in Ireland: parasite culture and field studies - Jamie Downes, Ireland
- Experience from gill scoring and other diagnostic methods - David Persson, FOMAS
- Correlation between gross gill score, real PCR and histopathology regardingParamoeba perurans- Vidar Aspehaug, PatoGen Analyse AS
- Challenges of gill scoring - Hamish Rodger, Vet-Aqua International
- Assessment of histo-morphometric changes in the gills of Atlantic salmon treated with H2O2 using image analyses - Kim Thompson, University of Stirling
- Multifactorial gill disease in Norwegian sea-farmed salmon - Stian Nylund, PHARMAQ-Analytiq
- Gill disease in Scotland – current situation and impact - Sara Pflaum, Fish Vet Group
- Characterisation and histopathology grading system of gill lesions using flatfish and Mediterranean fish species as models - Francesc Padrós, Universitat Autònoma de Barcelona
- AGD research at University of Tasmania - Barbara Nowak, University of Tasmania
- AGD challenge trial and freshwater treatment - Vibeke Emilsen, VESO Vikan
- Atlantic salmon immune response toP. peruransinfestation and influence of host physiological status - Ottavia Benedicenti, Univesity of Aberdeen
- Investigations on P. perurans and amoebic gill disease at Marine Scotland Science, Scotland - Catherine Collins, Marine Scotland Science
- Update on CSIROs Amoebic Gill Disease (AGD) Research - Mathew Cook, CSIRO, Australia
- Experimental infection with P. peruransisolated from Western Norway - Linda Andersen, ILAB, Bergen
- Gill diseases in maricultured Atlantic salmon in Norway, results from ongoing projects - Anne-Gerd Gjevre, NVI
- New objective method for mucosal epithelia measures applied to gills - Karin Pittman, University of Bergen
- Persistence of Salmonid alphavirus in the gills of Atlantic salmon may be due to interference in the activation of IFN-1 mediated signalling pathways - Alexandra Adams, University of Stirling
- Jellyfish and gill health - Hamish Rodger, Vet-Aqua International
- Pox virus causing gill disease in Atlantic salmon - Mona Gjessing, NVI
- Pathology of non-infectious gill diseases - Mark Powell, Norwegian Institute of Water Research