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The lesions observed on fish presumed killed by Pfiesteria have been attributed to water molds by some researchers. However, it has also been established that Pfiesteria shumwayae kills fish by feeding on their skin through myzocytosis. [11] In early 2007, a highly unstable toxin produced by the toxic form of Pfiesteria piscicida was identified ...
V. alginolyticus was first identified as a pathogen of humans in 1973. It occasionally causes eye, ear, and wound infections. It is a highly salt-tolerant species and can grow in salt concentrations of 10%. Most clinical isolates come from superinfected wounds that become contaminated at the beach. Tetracycline is typically an effective ...
Streptococcus iniae is a species of Gram-positive, sphere-shaped bacterium belonging to the genus Streptococcus.Since its isolation from an Amazon freshwater dolphin in the 1970s, S. iniae has emerged as a leading fish pathogen in aquaculture operations worldwide, resulting in over US$100M in annual losses.
Dermocystidium erschowii Garkavi, Denisov & Afanas'ev 1980— a skin parasite of carp; Dermocystidium fennicum Pekkarinen et al. 2003— a skin parasite of perch [9] Dermocystidium gasterostei Elkan 1962 [7] — a parasite of sticklebacks [10] Dermocystidium granulosum Sterba & Naumann 1970 [7] Dermocystidium guyenotii Thélin 1955 [7]
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.
A flesh-eating bacterium has come for East Coast beaches—and it can kill you in two days. The CDC has officially issued an emergency health alert. A Flesh-Eating Pathogen Has Come for East Coast ...
Some fish show no external symptoms, but others show signs of infection that include bulging eyes, bloated abdomens, bruised-looking reddish tints to the eyes, skin, gills and fins. Some infected fish have open sores that may look like the lesions from other diseases or from lamprey attacks.
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