Enriching oyster reef restoration with soundscape ecology
Researchers from the University of Adelaide are using underwater music to speed up the restoration of native oyster reefs.
By using underwater speaker technology, researchers are broadcasting snapping shrimp snaps in the ocean to create ‘highways of sound’ that attract baby oysters to oyster reefs targeted for restoration.
“In the ocean, sounds orchestrated by the snaps of snapping shrimp provide navigational cues used by baby oysters to find healthy habitats to settle and grow in,” Brittany Williams, a PhD candidate at the University of Adelaide.
Researchers are diving deep to find out more about the ocean sunfish, the Jabba the Hutt of the fish world, that hang out on the reefs off Bali for just three months each year. They’ve become an intriguing tourist attraction for divers, but is this tourism sustainable?
The sunfish head to the reefs from July to October to seek out cleaner fish—such as longfin bannerfish and emperor angelfish— which help them remove skin parasites and clean up skin lesions.
Miniscule plastic particles with the potential to cause havoc in our waterways and oceans have been found in the stomachs of over a quarter of fish sampled in Sydney Harbour.
Named microplastics, the tiny plastic fragments, beads and fibres are sometimes made directly as beads, and sometimes created by the break-down of plastics used in clothing, packaging, fishing gear, nappies and wipes.