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Velvet disease (also called gold-dust, rust and coral disease) is a fish disease caused by dinoflagellate parasites of the genera Amyloodinium in marine fish, and Oodinium in freshwater fish. The disease gives infected organisms a dusty, brownish-gold color.
Adult Siamese fighting fish (Betta splendens) with velvet disease. Oodinium is a genus of parasitic dinoflagellates. Their hosts are salt- and fresh-water fish, causing a type of fish velvet disease (also called gold dust disease). One species has also been recorded on various cnidarians. [2]
However, the disease can also develop without the fish showing any external signs of illness, the fish maintain a normal appetite, and then they suddenly die. The disease can progress slowly throughout an infected farm and, in the worst cases, death rates may approach 100 per cent. It is also a threat to the dwindling stocks of wild salmon.
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.
Amyloodinium ocellatum (Brown, 1931) is a cosmopolitan ectoparasite dinoflagellate of numerous aquatic organisms living in brackish and seawater environments. The dinoflagellate is endemic in temperate and tropical areas, and is capable of successfully adapting to a variety of different environments and to a great number of hosts, having been identified in four phyla of aquatic organisms ...
A sicko from New Jersey allegedly took part in a neo-Nazi child-porn ring whose members groomed children online and extorted them to send self-produced, sexually-explicit videos, federal ...
For centuries, raw fish has been eaten and enjoyed in various forms, like sashimi, sushi, ceviche, oysters and tuna tartare. But according to the Centers for Disease Control and Prevention, it is ...
This category is dedicated to the various Fish diseases. For an overview of this subject go to Fish diseases. ... Velvet (fish disease) W. Weissella ceti; X. Xenoma