Articles tagged with Coral Reefs
Researchers have discovered that high-frequency sounds from snapping shrimp can serve as a proxy for coral reef resilience. The study found that protected areas showed more prominent snapping shrimp sounds after bleaching events compared to unprotected sites.
A new study projects significant ocean acidification around Hawaiian Islands within the next three decades, posing challenges to coral reefs and other marine organisms. Researchers found varying levels of acidity across different island regions, with windward coastlines exhibiting higher novelty in future conditions.
Researchers will study how ocean currents and nutrients from land influence the health and productivity of MCEs, which support diverse marine life and important fisheries. The project aims to fill critical knowledge gaps and provide science-based solutions for environmental protection and sustainable growth in the gulf region.
A new technique allows scientists to inject molecules into coral tissues, revealing thyroxine's positive effect on calcification. The study raises questions about the evolution of animal physiology and how corals utilize thyroxine in their natural habitat.
A study suggests that eliminating invasive rats can restore the flow of nutrients across food chain networks in Seychelles, potentially enhancing ecosystem function on coral reefs. Seabird populations play a mediating role in this process by increasing turf algae growth and stimulating top-down controls.
University of Leicester researchers analyzed coral cores to spot the start of industrial deforestation in Malaysian rainforest and its impact on coastal ecosystems. The study found that sediment concentrations remained low before 1950, but increased after, indicating enhanced soil erosion due to deforestation.
Research reveals extreme coral mortality after bleaching, with mortality exceeding 99% in some areas. The study highlights the urgent need for action on climate change, as repeated disturbances have compounded the ecosystem's vulnerability.
Researchers developed a cutting-edge microscope to study coral photosynthesis and health in their natural habitat. The BUMP imaging system provides unprecedented insights into coral reefs, advancing efforts to understand coral bleaching.
A new study found that submarine groundwater discharge increases nutrient availability, alters seawater acidity, and impacts coral skeleton calcification. This research provides insights into the complex interactions between land and ocean, highlighting the importance of keeping groundwater free of contaminants for coral reef health.
A recent study sheds light on the diverse species of soft corals, which were previously difficult to identify due to their variable sclerites. The researchers sequenced DNA from over 4,400 specimens and found that soft corals are more diverse than initially thought, with new discoveries made in regions previously unexplored.
Research shows that island rivers shape reef passes, allowing seawater and nutrients to flow in and out. The locations of reef passes align with where rivers funnel out from an island's coast, providing circulation throughout the reef.
Researchers have discovered a synthetic peptide that attracts Crown-of-Thorns Starfish at low concentrations and with no toxicity, offering an efficient pest-management solution. This breakthrough may lead to the development of potent attractins to control CoTS outbreaks, protecting coral reefs from devastating damage.
A recent study found that coral reefs are rapidly moving poleward due to ocean warming, but immediate action can still significantly improve their future outlook. The research suggests that reducing greenhouse gas emissions could limit coral loss to around a third, rather than the expected 86%.
Research in Panama reveals that corals from more variable ocean environments are better equipped to survive rising ocean temperatures. The study found that these corals have more resilient microbiomes, which play a crucial role in their survival.
A study by University of California - Davis and Woods Hole Oceanographic Institute found that cleaner fish stations influence damselfish and reef microbial diversity. The presence of cleaning gobies was linked to increased fish visits and changes in water nutrients and microbial communities.
Researchers have discovered that a bacterial probiotic helps slow the spread of stony coral tissue loss disease (SCTLD) in already infected wild corals in Florida. Applying the probiotic treatment across entire coral colonies helped prevent tissue loss, providing a more lasting protection than traditional antibiotics.
Coral reefs are found to be more productive ecosystems than previously thought, with 80% occurring in nutrient-rich conditions. The study challenges the 'Darwin's Paradox' narrative and highlights the importance of understanding linkages between reef animals and their surroundings.
New research from the University of Sydney reveals that while sea levels can rise without devastating the reef, environmental stressors like poor water quality and warming climates are a greater threat to its survival. The study suggests the modern Great Barrier Reef may undergo significant changes in the next 50-100 years.
A recent study found that coral fragments were low in beneficial Endozoicomonas bacteria, which is associated with coral health. This discovery highlights the importance of microbiome analysis in assessing the performance of coral outplants and may provide new insights into coral restoration efforts.
Researchers from University of Guam Marine Lab propose a novel framework to innovate in restoration ecology, integrating coral microbiology, fusion, fragmentation, and environmental resilience. They found that nursery-cultured corals have different morphology, physiology, and microbiomes than wild counterparts.
Researchers found that heat-tolerant symbiont Durusdinium can increase the survival of elkhorn corals under extreme temperatures. This discovery offers new hope for reef restoration and resilience amid rising ocean temperatures.
Researchers detail how sampling and analyzing reef water microbes can provide a more immediate picture of health and details about organisms living alongside reefs. The study aims to make this knowledge accessible to various stakeholders, including marine park managers and policy makers.
Researchers have engineered a bio-ink that can promote coral larvae settlement and restore coral reefs. The ink, dubbed SNAP-X, slowly releases chemical cues into seawater, attracting coral larvae and encouraging them to settle on the reef. Testing showed that larvae were 20 times more likely to settle on substrates sprayed with SNAP-X.
Researchers at UC San Diego's Scripps Institution of Oceanography developed a gel called SNAP-X that releases chemical cues encouraging coral larvae settlement. In laboratory tests, SNAP-X increased coral settlement by up to 20 times compared to untreated surfaces, offering a promising solution for coral reef restoration efforts.
New research warns that global policies may lead to triggering of multiple climate tipping points, with a 62% risk on average. However, sustainable future pathways with lower greenhouse gas emissions can significantly reduce this risk.
Research reveals thousands of chemical compounds derived from coral reefs and seaweeds are available for microbial decomposition and utilization. Microbes can break down previously thought-to-be-harder-to-degrade chemicals, such as benzene rings and steroids.
A recent study found that coral reef restoration efforts are hindered by small-scale programs, high costs, and targeting already compromised reefs. The researchers argue that scaling up restoration efforts is unlikely to offset climate change-driven losses, and suggest bolstering ecosystem resilience through complementary strategies.
A recent study found that coral genotypes display resistance to either high nutrient levels or disease, but not both simultaneously. Poor water quality also reduces coral survival even in the absence of disease.
A 30-meter sediment core from the Great Blue Hole in Belize provides the longest recorded storm frequency data for the Atlantic, with 574 storm events over 5,700 years. The research reveals a steady increase in tropical storms and hurricanes in the southwestern Caribbean due to climate change.
A decade after transplantation, red coral colonies have survived and contributed to the recovery of the coral reef ecosystem. The transplanted colonies have assimilated into natural communities, demonstrating the effectiveness of restoration actions in mitigating climate change impacts.
A study using a unique moored platform in the Sargasso Sea found that hurricanes can transport sediments from shallow-water reefs to the deep ocean, affecting the environment for weeks. The study demonstrated how much of an impact hurricanes can have on the deep environment, with significant effects lasting for near decades.
Researchers found a unique ecosystem in the deep waters of the Farasan Bank coral reef system, where corals and fish adapted to survive in low-oxygen environments. The discovery highlights the need for further marine exploration and conservation of these extreme habitats.
A new neural network can identify fish activity on coral reefs by sound, faster than human experts, enabling real-time monitoring of fish populations, species identification, and disaster response. This technology has the potential to revolutionize ocean monitoring and research.
Researchers found that some coral reef fish exhibit higher thermal tolerance in the Arabian Gulf's variable thermal environment, but overall biodiversity is lower. This suggests that only certain species can adapt to environmental changes, and highlights the need for further investigation into climate change impacts.
Researchers found that corals with crab tankmates experienced less tissue loss and rapid healing compared to uninjured or injured corals without crabs. The presence of algae increased tissue loss, while crabs removed it by pruning the coral's habitat.
Researchers at University of Hawaii at Manoa have discovered 10 new marine sponge species in Kāneʻohe Bay, expanding our understanding of sponge biodiversity in the Hawaiian archipelago. The discovery sheds light on the crucial role sponges play in regulating and sustaining coral reef ecosystems.
A global real-time monitoring system is being developed to track bleaching severity, crown-of-thorns starfish populations, disease outbreaks, and reef fish abundance. The integrated system aims to provide predictive models for conservation efforts, enabling earlier intervention.
A 3,000-year pause in coral reef growth was observed in the Gulf of Eilat, coinciding with similar events in Mexico, Brazil, and Australia. The reef eventually recovered by recolonizing from deeper waters, demonstrating its natural resilience.
A novel underwater light system, UZELA, enhances local zooplankton density and increases feeding rates of coral, making them stronger and more resilient against environmental threats. The device can be powered for half a year on a single battery and can optimize a coral's feeding time by operating for one hour after dusk.
A new study reveals that marine reserves on the Great Barrier Reef supply nearly half of the region's coral trout catch, contributing significantly to sustainable fishery yields. The protected areas also ensure a higher reproductive output and more resilient coral reef ecosystems.
A recent study has developed refined techniques for in vitro fertilization (IVF) of four key Caribbean coral species, enhancing larval production and bolstering declining populations. The findings provide actionable guidelines for coral IVF practitioners, enabling higher yields while minimizing waste and damage.
A deadly ciliate parasite has decimated sea urchin populations in the Caribbean, Red Sea, and Indian Ocean, with mortality rates reaching over 90%. The International team of researchers is working to track the disease and preserve sea urchins, which play a crucial role in maintaining coral reef health.
A recent study revealed that 66% of coral colonies on the southern Great Barrier Reef were bleached by February 2024, with 80% by April. The research team tracked the health of 462 coral colonies over 161 days and found that 44% of the bleached colonies had died, including a staggering 95% mortality rate for some species.
New research reveals significant transformations in Great Barrier Reef fish communities, with changes in species richness and composition driven by coral diversity rather than coral cover. The study's findings raise questions about the shifting latitudinal diversity gradient and its implications for ecosystem functioning.
Elkhorn coral restoration efforts should prioritize shallower depths with faster currents to promote a healthier microbial community. Fine-scale environmental differences between reef habitats are associated with higher elkhorn survivorship, while certain bacteria and elevated nutrients negatively affect survival.
A new study published in Marine Resource Economics found that a decline in healthy coral reefs can lead to substantial losses in fisheries. The research analyzed nine fisheries dependent on Australia's Great Barrier Reef and predicted lower fishing yields if the restoration of coral reefs is not prioritized.
Research using novel underwater infrared cameras reveals that artificial light wakes sleeping fish and attracts predators to coral reefs at night, changing community composition. This alteration is concerning as it may be essential for regenerating energy and maintaining fitness in marine life.
A new study reveals that corals must be within 10 meters of each other for fertilization to take place, emphasizing the need for conservation efforts to maintain coral populations. The research found that as distance increases, reproduction success declines significantly.
Researchers discovered a species of damselfish actively eating gnathiid isopods, which are common reef parasites, to protect their young. This unique 'great fish parenting' behavior increased the survival rate of juvenile fish by three times.
Recent research published in Nature Climate Change highlights the importance of coral reef restoration in responding to smaller-scale disturbances. Leading experts emphasize the need for tailored approaches, incorporating resilience-oriented frameworks to ensure long-term success.
A new study suggests that coral heat tolerance adaptation via natural selection may be insufficient to overcome the impacts of ocean warming, unless Paris Agreement commitments are realized.
A recent study suggests coral heat tolerance adaptation may not keep pace with ocean warming, and some sensitive species may face extinction. The research modelled different climate scenarios, revealing that natural selection may be insufficient to ensure coral survival under expected warming levels.
The University of Miami, partnering institutions, receive a $16 million NOAA grant to enhance the resilience of Florida's restored coral reefs. The team aims to implement novel interventions and leverage innovative technology to increase heat tolerance in corals and scale up new approaches.
A pioneering study reveals that transplanting vibrant invertebrate and microbial communities from healthy reefs to damaged ones significantly boosts coral health. The innovative approach, known as 'a coral reef ecosystem transplant,' demonstrates notable improvements in coral photosynthetic efficiency and physiological function.
Researchers confirm oil presence in Mauritius mangrove forest close to Ramsar conservation sites, three years after MV Wakashio spill. The oil has undergone weathering and biodegradation, but its ongoing presence poses an unknown risk to the sensitive ecosystem.
Researchers found that a chlorine-cocoa butter mixture can effectively treat diseased corals, reducing tissue loss and environmental harm. The alternative approach offers a cheaper, biodegradable solution to combat antibiotic-resistant bacteria.
Researchers have discovered two previously unknown bacterial species in deep-sea corals from the Gulf of Mexico. These bacteria have extremely reduced genomes and lack the ability to break down carbohydrates, surviving on amino acids instead. The discovery provides insights into the unique adaptations of deep-sea organisms.
Researchers found that coral reef communities persisted under certain conditions, contradicting most projections of their demise. The study's results suggest that effective climate change mitigation measures can help coral reefs adapt and thrive.
A new study by University of Texas at Arlington researchers found that living with symbiotic algae weakens the immune system of jellyfish, making them more vulnerable to infections. This finding has important implications for coral reef conservation and human disease prevention.
Researchers at Woods Hole Oceanographic Institution found that golfball coral larvae can be encouraged to settle when they hear the sounds of a vibrant, healthy reef. Acoustic enrichment technique showed promise in revitalize degraded sites and help repopulate marine ecosystems.