black band disease


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black band disease

[¦blak¦band di‚zēz]
(invertebrate zoology)
A coral reef disease that is characterized by a thick black band of tissue that advances rapidly across infected corals, leaving empty coral skeletons behind.
References in periodicals archive ?
Washington, March 28 ( ANI ): Researchers have examined corals from the Great Barrier Reef affected by the Black Band Disease and identified the critical parameters that allow this prevalent disease to cause wide mortality of corals around the world.
Corals infected with Black Band Disease show a characteristic appearance of healthy tissue displaced by a dark front, the so-called Black Band, which leaves the white limestone skeleton of the coral animal exposed.
The increased sulfide concentration around the necrosing tissue and the resulting decrease in oxygen leads to the spreading of the lesions to the surrounding, healthy tissue; a positive feedback that causes rapid migration of the Black Band Disease.
the arrival of coral black band disease in 1973, mass dieoffs of staghorn and elkhorn corals and sea urchins in 1983, and coral bleaching beginning in 1987--occurred during peak dust years.
Researchers visiting Aquarius study, for example, black band disease, which kills coral and threatens sea life.