Coral Disease Outbreak Ahihi 011409
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Coral Disease Outbreak Ahihi 011409

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Coral disease (white syndrome) outbreak of Montipora capitata (rice coral) in protected area on Maui

Coral disease (white syndrome) outbreak of Montipora capitata (rice coral) in protected area on Maui

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Coral Disease Outbreak Ahihi 011409 Coral Disease Outbreak Ahihi 011409 Presentation Transcript

  • `AhihiKina`u Natural Area Reserve
    Coral Disease Outbreak Investigation
    Maui, Hawai`i
    Russell Sparks, DAR Education Specialist
    Skippy Hau,
    DAR Aquatic Biologist
    Coral Disease Researcher
    Greta Aeby, PhD.
    Danielle Kornfeind,
    DOFAW Ranger
  • `AhihiKina`u Coral Disease Outbreak Investigation
    January 14, 2010
    Montipora White Syndrome
    Progressive Tissue Loss Disease
    Species affected: Montiporacapitata
    Probable Cause: Pathogenic
    Discovery by UH graduate students Megan Ross & Yuko Stender
    Photos by Danielle Kornfeind, Linda Castro, and Skippy Hau
  • Disease Front
    Tissue loss –
    recent mortality; progressive algal growth
    Healthy Coral –
    reddish brown
  • Progression of the disease can be observed originating from the base of the colony to the tops of the branches in this example. The distinct white band adjacent the reddish-brown live coral is newly exposed skeleton where the tissue has been lost. When the coral dies, the algae quickly move in (within days) to occupy the empty space. The progressive density of the algae indicate the direction and rate of speed of the disease. This outbreak will be studied and monitored.
  • Healthy Coral –
    reddish brown
    Disease Front
    Tissue loss –
    recent mortality; progressive algal growth
  • Healthy Coral –
    reddish brown
    Live coral polyps are visible
    Tissue loss –
    progressive algal growth
    Disease Front – white skeleton exposed
    No tissue – empty calices (coral cups)
  • Healthy Coral –
    reddish brown,
    This one is paling (bleaching)
    Tissue loss –
    recent mortality; exposed skeleton & empty calices (cups)
  • Tissue loss – white skeleton visible -
    recent mortality; progressive algal growth
    Healthy Coral –
    reddish brown
  • Tissue loss – white skeleton visible -
    recent mortality; progressive algal growth
    Healthy Coral –
    reddish brown
    Dark red/purple –
    Endolithichypermycosis
    Naturally occurring internal fungus overgrowth under stress of disease
  • Healthy Coral –
    reddish brown
    Tissue loss –
    recent mortality; progressive algal growth
    Disease Front
  • Healthy Coral –
    reddish brown
    Tissue loss –
    recent mortality; progressive algal growth
    Disease Front
  • Healthy Coral –
    reddish brown
    Tissue loss –
    recent mortality; exposed white skeleton
    Progressive algal growth
  • Coral bleaching, disease & marine invasives reporting network
    Report unusual events of bleaching, disease or COTS to:
    www.reefcheckhawaii.org/eyesofthereef.htm
    808-953-4044
    or
    EOR site coordinators
    Kauai: Paul Clark
    SOS@saveourseas.org
    Big Island: Linda Preskitt
    preskitt@hawaii.edu
    Maui: Darla White
    Darla.J.White@hawaii.gov