Noga E.J. Fish disease (Diagnosis and Treatment) [PDF] - Все для студентаThere are literally hundreds of afflictions that can effect the health of your fish. The most common maladies seen in home aquaria are usually either bacterial or parasitic in origin. Fungal infections are also sometimes seen, and occasionally physical ailments. Luckily, most fish ailments are easily diagnosed and can be treated with success. The most common of these afflictions are included here.
Fish disease and parasites
Like humans and other animals, fish suffer from diseases and parasites. Fish defences against disease are specific and non-specific. Non-specific defences include skin and scales, as well as the mucus layer secreted by the epidermis that traps microorganisms and inhibits their growth. If pathogens breach these defences, fish can develop inflammatory responses that increase the flow of blood to infected areas and deliver white blood cells that attempt to destroy the pathogens. Specific defences are specialised responses to particular pathogens recognised by the fish's body, that is adaptative immune responses. Some commercially important fish diseases are VHS , ich and whirling disease. All fish carry pathogens and parasites.
When fish are living under less than optimal conditions, their resistance to disease is reduced, and they may be infected by common diseases that are often present in the environment at low levels. For this reason, it is very important to make sure that we do all that we can to ensure a good environment for our aquatic animals and protect them from the introduction of exotic diseases. For private ponds that are managed for recreational fishing or ornamental fish, the most important environmental considerations are these:. For commercial aquaculture ponds, tanks, and raceways, the most important environmental considerations are these:. For private fishing ponds, the primary consideration is the health of the fish that you put in the pond. For sportfish, this means that the fish should come from a reputable farm and that the fish should look healthy and free of disease when you purchase and stock them. It may even be worthwhile to ask the supplier about their fish health inspection program.
Fish diseases. Science Publishers, Enfield, Jersey, Plymouth. ISBN set : ISBN Vol. Book review of "Fish diseases, Volumes 1 and 2. Eiras, H. Segner, T.
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You are currently using the site but have requested a page in the site. Would you like to change to the site? Edward J. Fish Disease: Diagnosis and Treatment, Second Edition is the must-have reference for any aquaculturists, aquatic biologists, or fish health specialists dealing with diagnosing or treating fish diseases. Request permission to reuse content from this site.