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An Oasis in the Desert: Sourcing Corals From Harbors for Reef Restoration
Poster Title: An Oasis in the Desert: Sourcing Corals From Harbors for Reef Restoration
Submitted on 20 Jun 2016
Author(s): L. Del Rio Torres, N. Chan, S. Ranson, C. Wolke, D.Gulko & Z. Forsman
Affiliations: Department of Land and Natural Resources, Division of Aquatic Resources
This poster was presented at Convention Center, Honolulu, Hawaii
Poster Views: 1,668
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Poster Information
Abstract: The continuous decline of coral reef throughout the world due to anthropogenic activities has encouraged the development of different mitigation strategies, many of which involve the creation of artificial reefs or the transplantation of corals onto impacted reefs. Both of these strategies involve the need for source corals for the mitigation, as the natural recruitment and growth of coral larvae into adult colonies displaces lost ecological services for too great a period. In Hawaii, where corals grow only a few centimeters a year, this issue is pronounced.
Hawaii’s Division of Aquatic Resources (DAR) has introduced an innovative strategy to source coral material from boat harbors by removing coral colonies from man-made structures within the harbors, thereby minimizing the impact to wild colonies while selecting coral colonies that have already shown to be resistant to higher SSTs, sewage discharges, pollutants, sedimentation and survival under these dynamic conditions. Such corals may be one answer to improve rehabilitation success on deteriorated reefs.
Harvested corals are fragmented down into small fragments and grown out with an exceptional fast growth rate under high maintenance conditions; once they reach an optimal larger size they are re-aggregated into adult colonies which are then transplanted onto natural degraded coral reefs.
Summary: Sourcing Hawaiian corals from harbors for reef restoration purposes. Fragmentation of these corals to grow them out ex situ (land based), under optimal husbandry conditions allows producing larger reproductive colonies in a fraction of the time it would take in their natural environment.References: 1. Cesar, H.S.J.; Van Beukering, P.J.H. 2004. Economic valuation of the Coral Reefs of Hawai'i. Pac Sci. Vol 58. 2:231-242
2. Brander, L & Van Beukering, PJ.H. 2013. The Total Economic Value of U.S. Coral Reefs. NOAA
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