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COURTESY THIERRY WORK The black parts on the Hawaiian white-spotted toby fish pictured above are abnormal. Its normal skin color is olive green or brown with small polka dots. The black spots indicate rotting skin.
COURTESY THIERRY WORK Courtesy Thierry Work
Experts are trying to determine the cause of a widespread cyanobacterial disease that is killing coral on Kauai's North Shore at a fast rate. Shown above is unhealthy coral. The lesion is the gray area with the black band invading live orange-colored coral tissue.