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NOAA Coral Reef Watch Larval Connectivity, Hawaiian Archipelago (and Johnston Atoll)

Published by NOAA Coral Reef Watch program | National Oceanic and Atmospheric Administration, Department of Commerce | Catalog Last Checked: August 01, 2026 at 07:20 AM | Dataset Last Updated: June 09, 2017 at 12:00 AM
Climate change threatens even the best-protected and most remote reefs. Reef recovery following catastrophic disturbance usually requires disturbed sites be reseeded from upstream reefs. Recent research (McClanahan et al., 2012) assessed connectivity as an important resilience factor, which although difficult to measure, is a high priority for management of coral reef ecosystems. The products described herein identify reefs that act as “sources” and/or “sinks” in the Hawaiian Archipelago (and Johnston Atoll) to inform reef management strategies. Tools developed provide information on connectivity among reefs, thereby advancing the capacity for reef connectivity assessment.

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