Black gill disease

Bacterial disease of fish

Black gill disease, also known as black spot disease or black death, is a disease affecting various species of marine animals, including shellfish and crustaceans, across the Atlantic and Pacific oceans. The disease is characterized by the visibly noticeable black melanated gills, speculated to be caused by a fungus called Fusarium solani or a similarly shaped ciliate. Human consumption of fish affected by black gill disease is harmless.

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