Large-scale Mapping of Live Corals to Guide Reef Conservation

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Large-scale Mapping of Live Corals to Guide Reef Conservation
Haleiwa, United States
Michael Olsen

In a new study, Dr. Greg Asner and his research team quantified live coral cover across the Main Hawaiʿian Islands using a new airborne mapping approach. Results revealed areas of potential coral refugia and differences in live coral distributions within and across islands, providing managers with a snapshot of the current condition of Hawaiʿian reefs.

This analysis has implications for a range of conservation and management efforts, most specifically Hawaiʿi’s Marine 30-by-30 Initiative, including:

  1. Marine protections applied to potential coral refugia can create biodiversity banks for the future;
  2. Areas of moderate live coral can be targeted for activities that mitigate land-sea stressors while planning for large-scale reef restoration; and
  3. Areas of extremely low live coral cover may be difficult to manage using currently available techniques.

Read the full paper here.

Reference

Asner, G.P., Vaughn, N.R., Heckler, J., Knapp, D.E., Balzotti, C., Shafron, E., Martin, R.E., Neilson, B.J., Gove, J.M. (2020). Large-scale Mapping of Live Corals to Guide Reef Conservation. Proceedings of the National Academy of Sciences.

Hawai'i aerial view
Hawai'i aerial view
Fact Sheet

New Research to Map Reef Changes and Inform Coral Restoration in Hawaiʿi

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Fact Sheet

Coral reefs around the world are increasingly impacted by rising ocean temperatures, pollution and overfishing. In Hawaiʻi, the state has committed to protecting 30% of their ocean habitats by 2030 under the state’s Marine 30-by-30 Initiative, which will expand coral reef conservation and restoration efforts. Hawaiʻi’s Division of Aquatic Resources (DAR) is currently working with communities and scientists to understand where these efforts can be most successful.

Hawaiʿi
Hawaiʿi
Published Paper

Abiotic and Human Drivers of Reef Habitat Complexity

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Published Paper

A new study from Dr. Greg Asner and team explores the abiotic, or non-living, and human drivers of habitat complexity of coral reefs across the main Hawaiʿian Islands.