Coral Reef Pathogens is now Black Band DIsease (Final Outiline)

This discussion topic submitted by Craig Yendrek ( Yendrek@msn.com) at 7:58 pm on 6/9/00. Additions were last made on Wednesday, February 20, 2002.

Presentation Outline for Black Band Disease

1-Brief history of coral diseases
-Several different disease migrations and patterns seen
-But, incomplete characterization of the cause (KochÝs postulates!!)


2-Black Band Disease
-Infects scleratinian corals (Montastrea annularis, M. cavernosa, Diplora strigosa
-Only 2% of corals have BBD
-Serious though ˝ infects large reef-building corals


3-Cause of BBD ˝ cyanobacterium
-Dark band, moves over coral and kills polyps
-Spread rate is fast (1 cm per day) ˝ (coral grows 1 cm per year) !!!
-Microbial community (Phormidium corallyticum) heterotrophic bacteria, and marine fungi


4-Factors that affect spread
-Temperature (increase in summer)
-Light (increase during day)
-Pollution (some increase near cities)
-Not highly contagious (infects previously damaged or unhealthy corals)

5-Confusion among researchers
Story #1: Red Band Disease??
Story #2: Yellow Band Disease???


6-Other diseases that have been identified using KochÝs postulates
-Aspergillosis: (fungus on gorgonians ˝ sea fans)
-White Band Disease type II: (Acropora palmata and A. cervicornis)
-Plague type II: (most destructive, spread rates of 2 cm per day, affects 17 species in the Florida reef tract)


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It is 12:36:01 PM on Thursday, March 30, 2017. Last Update: Wednesday, February 20, 2002