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Dropsy is a condition in fish caused by the buildup of fluid inside the body cavity or tissues. As a symptom rather than a disease in its own right, it can indicate a number of underlying diseases, including bacterial infections , parasitic infections, or liver dysfunction.
The following is a list of aquarium diseases. Aquarium fish are often susceptible to numerous diseases, due to the artificially limited and concentrated environment. New fish can sometimes introduce diseases to aquaria, and these can be difficult to diagnose and treat. Most fish diseases are also aggravated when the fish is stressed.
VHS disease in a gizzard shad. Viral hemorrhagic septicemia (VHS) is a deadly infectious fish disease caused by Viral hemorrhagic septicemia virus. It afflicts over 50 species of freshwater and marine fish in several parts of the Northern Hemisphere. [1] Different strains of the virus occur in different regions, and affect different species.
Myxobolus cerebralis triactinomyxon Henneguya zschokkei in salmon beard. Diseases can have a variety of causes, including bacterial infections from an external source such as Pseudomonas fluorescens (causing fin rot and fish dropsy), fungal infections (Saprolegnia), mould infections (Oomycete and Saprolegnia), parasitic disorders (Gyrodactylus salaris, Ichthyophthirius multifiliis ...
An improper nitrogen cycle, inappropriate aquarium plants and potentially harmful freshwater invertebrates can directly harm or add to the stresses on ornamental fish in a tank. Despite this, many diseases in captive fish can be avoided or prevented through proper water conditions and a well-adjusted ecosystem within the tank.
In some cases, mortality can occur without any apparent clinical signs of the disease. [4] The virus has been found in high concentrations in the liver and kidney, but lower numbers of virions have been isolated from the spleen. [5] The virus has been shown to persist subclinically in fish populations up to 10 weeks following experimental ...
Various chemotherapeutants can be applied for the treatment of infected fish and infected fish farm systems but caution should always be observed during any treatment. Some drugs are toxic to certain fish species and any treatment method must take into account the species of fish (some do not tolerate certain medications).
Edwardsiella ictaluri (also known as enteric septicaemia of catfish, hole in the head disease [2] and ESC) is a member of the family Hafniaceae. The bacterium is a short, gram negative , pleomorphic rod with flagella.