TOKYO: Japanese universities are seeking to restore coral reefs and marine ecosystems after receiving artificial structures that Saudi Arabia made and showcased at last year’s Osaka-Kansai Expo.
The coral skeletons were donated to the University of the Ryukyus in Okinawa and Kansai University in Osaka Prefecture, Kyodo News reported at the weekend.
The structures are made from calcium carbonate, a material on which corals are believed to grow more easily compared to artificial alternatives such as concrete or metal.
The skeletal structures were created using 3-D printers, with one piece produced a day during the expo, and displayed across an entire wall in the Saudi Arabia Pavilion, which had an area focusing on sustainable marine environments.
Coral reefs serve as habitats for much marine life, but over 40 percent of the world’s 892 species face possible extinction, according to the International Union for Conservation of Nature.
