Welcome to the Fish Vet Group Knowledge Centre where you can download articles and papers on a range of aquatic health, welfare and husbandry topics.
In this paper, Fish Vet Group Norge Pathologist Hege Hellberg and others examine an otherwise undescribed disease in Rainbow Trout, which was causing between 10-12000 deaths per week in three fresh water hatcheries on the west coast of Norway in late 2013. The fish showed signs of circulatory failure with haemorrhages, ascites and anaemia but microbiological examination did not reveal the presence of any known pathogens. Due to similarities in the symptoms associated with piscine orthoreovirus the authors explore a relationship to viruses in the riovade group.
(Anne Berit Olsen, Monika Hjortaas, Torstein Tengs, Hege Hellberg, Renate Johansen)
In this study, Senior Fish Vet Group Scientist Andrew Shinn and others examine the world’s major marine and brackish water aquaculture production industries and provide estimates of the potential economic costs attributable to a range of key parasite pathogens. The study provides baseline resource for risk assessment and the development biosecurity practices, which can in turn help mitigate against the potential impacts of parasite-mediated disease in aquaculture. (Andy Shinn, J. Pratoomyot, J. Bron, G. Paladini, E. Brooker & A Brooker)
This is the second, in a series of three articles that focuses on biosecurity in aquaculture. The aim is to provide baseline information for the aquaculture community. In the first article (Aqua Asia Pacific Volume 10 no 4 July/August 2014, pp 41-42), we focused on biosecurity at the international level. In this article, we will now focus on biosecurity at the national level. It is not difficult to define a biosecurity program for a country; the difficult task is in implementing it. This requires the training of staff, the quality assurance of laboratory facilities and procedures for samples analysis, and in the development of robust contingency plans, etc. (Leonardo Galli, Don Griffiths, Pikul Jiravanichpaisal, Nattawadee Wattanapongchart, Oranun Wongsrirattanakul, Wimonthip Jarupheng and Andy Shinn)
Large jellyfish swarms occur naturally in our oceans but when in contact with a fish farm they can have severe consequences.The observations and findings from last year’s cases were put together in a short communication published in the Journal of Fish Diseases (Marcos- López M, Mitchell SO, Rodger HD (2014) Pathology and mortality associated with the mauve stinger jellyfish Pelagia noctiluca in farmed Atlantic salmon Salmo salar L. DOI: 10.1111/jfd.12267). This note is a short summary of what reported there.
This is the first of a series of three articles that focuses on biosecurity in aquaculture. Far from pretending to be guidelines, the aim of this article is to provide baseline information for the aquaculture community regarding the importance and complexity of aquatic biosecurity that must involve producers and governmental authorities working together as a unit, write Leonardo Galli, Don Griffiths, Pikul Jiravanichpaisal, Nattawadee Wattanapongchart, Oranun Wongsrirattanakul and Andrew Shinn, Fish Vet Group.
Amoebic gill disease (AGD) is a gill disorder found in marine fish, but primarily affecting salmon. At the end of 2011 the disease was recognised in Scotland, after the industry suffered a number of losses. Charlotte Johnston, TheFishSite editor speaks with Fish Vet Group vet, Chris Matthews, to find out what the disease means for the Scottish industry.
In the field of fish health, it can often be easy to jump to a wrong conclusion, particularly where the assessment of the efficacy of sea lice treatment is concerned. Assessment of treatment efficacy requires a broad view and a number of factors must be taken into account when investigating possible treatment failure, explains Chris Findlay, Fish Vet Group.
By Dave Cox, Fish Vet Group – Malachite green was something of a cure all for farmed fish. Used successfully for preventing and treating fungal infections and ectoparasites, such as those causing white spot disease, it was also effective in controlling internal parasites such as those causing Proliferative Kidney disease (PKD).