coral reef assessment and restoration after hurricanes
TRANSCRIPT
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Coral reef assessment and restoration after Hurricanes Maria and Irma
Michael Nemeth and Sean GriffinNOAA Restoration CenterCRRT meetingMay 2019
NASA
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Prelimary assessment and triage work conducted in the fall of 2017Funded by NOAA and NFWF
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Coral BreakageSevere damage to Acropora, Dendrogyra and Porites (Branching and Pillar corals)
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Coral BreakageSevere damage to Orbicella annularisESA listed species
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Coral Detachment
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Coral Burial by Rubble
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FEMA Mission Assignment
● Describe status of Puerto Rican coral reefs after impacts from Hurricanes Irma and Maria
● Identify sites as candidates for emergency coral triage
● Conduct emergency coral triage● Identify coral reefs that are potential long-term
restoration candidates
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METHODSTransect survey to determine damage by species and size class, including photo and video
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Survey sites
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Status of Puerto Rico’s Coral Reefs in the Aftermath of Hurricanes Irma and Maria
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A total of 414,354 m2 and more than 80,000 coralssampled at 153 stations.
Overall 11% of corals damaged.
Some reefs 100% damaged.
Most severe impact on Northeast, Culebra, Vieques and North coasts.
Results
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Coral Triage
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Coral Triage
• Over 17,000 corals rescued at 65 sites.
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Coral Triage
• Over 17,000 corals rescued at 65 sites.• Required multiple groups working in different regions to
complete this work
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Next Steps: Expand restoration footprint using Cuttings
• After ≈1.5 – 2 years, cut 10-20cm branches from transplants to expand footprint
• Leave half of the branches• > 2 cuttings/colony• Only harvest from healthy
colonies• Turn 1,000 colonies into 10,000
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Next steps
Adapted from the Nature Conservancy
Areas identified forlong-term restoration
● Requesting recovery assistance for coral reefs.
● Coastal protection focus - Healthy coral reefs provide more
storm protection than degraded reefs.
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For more information visit our NCCOS project page: https://coastalscience.noaa.gov/project/assessment-of-hurricane-impacts-to-coral-reefs-in-florida-and-puerto-rico/
Impact assessment: Triage efforts:[email protected]@noaa.gov
Acknowledgments