All articles tagged with #reef restoration
In 2018, JTC and NParks installed eight artificial reef structures off Small Sister’s Island in Singapore. By February 2022, the two structures left unplanted had accumulated 95 coral colonies from seven genera through natural settlement, while the six planted structures held 1,961 colonies from 43 genera. The unplanted structures serve as a control to measure natural recruitment rates.
Jamaican researchers are testing underwater speakers that play healthy reef sounds to attract fish to bleached corals, following a similar Great Barrier Reef study that boosted fish on sound-equipped artificial reefs; the effort also involves 3D-printed artificial reefs and lab-grown coral with the Alligator Head Foundation, but it's too early to know if Jamaica will see recovery, and volunteers can support via the foundation.
Divers off Jamaica install solar-powered underwater speakers to replay healthy reef sounds for 14 hours daily, aiming to lure marine life back to degraded reefs; inspired by a Nature study showing acoustic enrichment can double fish numbers and boost biodiversity, the project blends art and science with lab-grown corals to counter climate-driven reef decline.
Kona Low storms dumped mud, sediment and toxins into Hawaiʻi’s coastal waters, smothering nearshore corals and reef fish from Oʻahu to Maui and raising concerns about spawning viability and long‑term recovery as muddied waters linger. Scientists and conservation groups are rushing to assess damage and mobilize rapid-response reef restoration, while officials push for improved runoff management to prevent future harm.
The National Oceanic and Atmospheric Administration (NOAA) has added three new higher warning levels to their coral reef warning system due to record-setting temperatures, indicating an "unimaginable" level of coral mortality. Coral bleaching, caused by excessive heat, is becoming more pervasive and severe, threatening marine life and human survival. Human-induced global heating is exacerbating the issue, prompting the need for immediate action to reduce pollution and protect the oceans. Organizations like Coral Gardeners are working to combat coral bleaching and restore reefs.
Dr. Timothy Lamont and his team at Lancaster University found that planting corals on sand-coated steel frames brought a completely dead reef back to life in just four years, as part of the MARS Coral Reef Restoration Program in Indonesia. The program stabilized rubble fields with sand-coated steel structures called Reef Stars, allowing coral larvae to grow and thrive. While the restored reef showed positive growth, questions remain about the sacrifice of biodiversity for faster-growing coral species.
Researchers have found that playing recordings of healthy coral reef sounds through underwater speakers can attract coral larvae to struggling reefs, potentially aiding in their recovery. The study, conducted off the US Virgin Islands, showed that coral larvae were up to seven times more likely to settle at reefs where the sounds were played. While the results are promising, further research is needed to understand the long-term effects and ensure the survival and growth of the settled corals. This innovative approach offers hope for the restoration of damaged and degraded reefs in the face of significant threats such as global heating, overfishing, and pollution.
A volunteer seaweed removal program led by James Cook University and the Australian Institute of Marine Science has resulted in significant coral regrowth of up to 600% off the coast of Magnetic Island. The program, which involves citizen scientists manually removing macroalgae from experimental plots, has shown promising results in rejuvenating corals and increasing coral diversity. The method could be implemented easily by reef managers with limited resources, making it accessible for developing countries. The success of the project has prompted plans to expand to other locations and encourages individuals to take action to save coral reefs.