Abstract


DEVELOPMENT OF ACTIVE RESTORATION METHODOLOGY OF CORAL REEFS IN OKINAWA, JAPAN, USING ASEXUAL REPRODUCTION

Some people are still reluctant for active coral restoration, as they consider that, besides collateral damage to donor reefs, area that can be restored by means of transplantation is very limited to compare large scale degradation of coral reefs. However, as nursery for donor colonies can supply large numbers of transplantable seedling corals and spawning of the out-planted corals brings effective larval dispersion tool for natural recruitment enhancement, the active restoration processes need to be considered. The Coral Reef Preservation and Rehabilitation Project by Okinawa Prefectural Government, Japan, attempts to verify possibility of large-scale reef restoration since 2011. Three hectares of degraded reefs are being restored with more than 100,000 nursery-farmed coral fragments. The restored reefs will become larval dispersion hub after few years. The novel methodology consists of 1) finding of suitable species and location for out-planting, 2) farming of donor corals in nursery, 3) genomic DNA analysis of donor colonies, 4) farming of seedling fragments in nursery, 5) out-planting design for a single species without clonal colony, 6) combination of various species in wide area, and 7) long term monitoring.

Authors

Omori, M., Tokyo University of Marine Science and Technology, Japan, makomori@sk2.so-net.ne.jp

Higa, Y., Onna Village Fisheries Cooperative, Japan, mozuku@pony.ocn.ne.jp

Shinzato, C., Okinawa Institute of Science and Technology, Japan, c.shinzato@oist.jp

Zayasu, Y., Okinawa Institute of Science and Technology, Japan, yunazayasu.san@gmail.com

Nagata, T., Okinawa Environmental Science Center, Japan, nagata-tomofumi@okikanka.or.jp

Janadou, S., Department of Environmental Affairs, Oknawa Prefectural Government, Japan, janadous@pref.okinawa.lg.jp

Details

Oral presentation

Session #:42B
Date: 06/23/2016
Time: 15:15
Location: 301 B

Presentation is given by student: No