Pathology and disease diagnosis -- Chapter 5. Viral diseases -- Chapter 6. Bacterial diseases -- Chapter 7. Fungal and related oomycete infection -- Chapter 8.
A Colour Atlas of Salmonid Diseases | SpringerLink
Protist -- Chapter 9. Metazoa -- Chapter Production diseases and other disorders -- Chapter Idiopathic diseases -- Chapter Salmonids have widespread economic and environmental importance. Correct identification and understanding of their diseases are therefore vital if valuable stocks are to be maintained. A small but increasing percentage is on-processed to supply value-added products into the market. Because of rapid increases in production over the last years, ex-farm prices have fallen sharply.
This, and the decreasing availability of suitable sites have limited further growth in production in the Northern hemisphere.
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The most rapidly growing supplier now is Chile, which has low labour and materials costs and can therefore effectively compete with traditional producing countries in distant markets. Many producers in Europe are unable to sell fish into the market at the cost of production. There has been an increase in the development of quality schemes, both industry and interest-group led e.
A Colour Atlas of Salmonid Diseases
Political intervention e. Much of the state-of-the-art research into salmonid farming still takes place in traditional Northern European producing countries, and much of this focuses on developing economies of scale in order to reduce unit production costs and protect profit margins.
However, it seems likely that significant future production increases will take place in Chile, where costs of production are generally lower due to lower cost of labour and raw materials. Atlantic salmon farming has long been controversial and its effect on the environment and on wild fisheries particularly salmonid fisheries is questioned by many individuals and organizations.
Local chemical pollution, by use of chemical treatments. Effect on wild fish, by escapees, through disease spread.
Global environmental impact and issues of sustainability, since salmon production relies on supplies of fishmeal and fish oil for feed production, from industrial fisheries. Concerns have also been expressed relating to welfare of the farmed fish. Various quality schemes now exist which are variously designed to improve the quality, safety, welfare, and environmental sustainability of farmed Atlantic salmon.
These include: Industry-led schemes, e. Retailer-led schemes, e.
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Niche market schemes e. Most producing countries are governed by regulations that aim to protect the environment, the fish, and the consumer. For specific details contact the relevant Government authority. Brown, L. Aquaculture for Veterinarians. Bruno, D. A Colour Atlas of Salmonid Diseases. Academic Press Ltd, London, England. Purser, J. Southgate eds. Blackwell Publishing, Oxford, England.
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- David W. Bruno a Colour Atlas of Salmonid Diseases-Springer Netherlands (2013).
Roberts R. Blackwell Science, Oxford, England. Willoughby, S. Manual of Salmonid Farming. FAO Names:. Bulging eyes and, in some cases, bleeding eyes; pale gills; swollen abdomen; lethargy.
No treatment; statutory controls; biosecurity; broodstock screening; vaccines being developed. Gillis , Thomas E. A comparative view on mechanisms and functions of skeletal remodelling in teleost fish, with special emphasis on osteoclasts and their function. Paul Eckhard Witten , Ann Huysseune. The intercellular organization of the two muscular systems in the adult salmonid heart, the compact and the spongy myocardium.
Conus arteriosus of the teleost heart: dismissed, but not missed. The choroid rete mirabile of the fish eye. Oxygen secretion and structure: comparison with the swimbladder rete mirabile. Jonathan B.
Wittenberg , Beatrice A.
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