Articles tagged with Coral Reefs
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Peter Glynn, a professor at the University of Miami's Rosenstiel School, has received the Provost's Award for Scholarly Activity for his groundbreaking research on coral reefs. His work highlights the impact of climate change on coral bleaching and death.
Scientists warn that butterflyfish, such as the Chevroned Butterflyfish, are at risk of extinction due to their specialized feeding habits. The coral reefs' decline is threatening these fish's survival as they can only eat one type of coral, leading to a high risk of extinction.
A new study finds evidence of an ocean 'thermostat' regulating sea-surface temperatures in the Western Pacific Warm Pool, protecting coral reefs from severe warming. This discovery lends support to a long-debated theory that naturally warm waters may be more resistant to climate change.
Three major environmental groups call for a significant increase in protected areas to combat climate change and destructive fishing practices. They also emphasize the importance of human uses being limited within these systems to allow marine species to recover.
A major new study published in Science warns that global warming and acidification are triggering widespread coral disease and stifling coral growth. The researchers argue that drastic action is needed from world leaders to protect coral reefs, which support 100 million people and generate billions of dollars in tourism.
Scientists warn that coral reefs will struggle to survive in increasingly acidic ocean waters due to rising carbon emissions, threatening marine biodiversity and coastal economies. The Great Barrier Reef is among the first victims of this acidification, which could lead to its collapse by mid-century.
Coral reefs, crucial for millions of livelihoods worldwide, are at risk due to rapid climate change and ocean acidification. The International Coral Reef Targeted Research Program warns that most coral reefs will not survive the forecasted increases in global temperatures and CO2 emissions unless drastic action is taken.
Coral reefs are facing extinction due to rising ocean temperatures and acidification, threatening marine biodiversity and the livelihoods of millions. Scientists call for urgent action to reduce carbon emissions and local pressures such as overfishing and pollution to save these vital ecosystems.
A new study by the Wildlife Conservation Society found that coral reefs in sites with varying seasonal temperatures are more likely to survive rising ocean temperatures. This 'tough love' approach allows corals to adapt to environmental variation, increasing their chances of survival.
Researchers warn that Caribbean coral reefs will decline permanently unless measures are taken to address overgrowth with seaweed and protect key grazers like parrotfish. The study suggests a need for policy changes to control fish traps and promote reef regeneration.
Coral reefs face irreversible destruction due to global warming, with scientists urging immediate action to reduce emissions and implement no-fishing reserves. The Great Barrier Reef alone generates $6.9 billion annually in economic activity, supporting over 65,000 jobs.
Researchers have discovered an ancient light-sensitive gene, known as a cryptochrome, that appears to act as a trigger for the annual mass spawning of corals across Australia's Great Barrier Reef shortly after a full moon. The Cry2 gene, stimulated by faint blue light, plays a central role in triggering the event.
The world's oceans are becoming more acidic, potentially devastating for corals and marine organisms. Corals with chalky skeletons face declining calcification, affecting the marine food web and global oxygen production.
Researchers have compiled the world's first detailed gene expression library for Symbiodinium, a microscopic algae that feeds corals and drives the reef's fate. Understanding its biochemical relationship with corals is crucial for addressing coral bleaching and climate change.
Systematic conservation planning can help protect endangered species and habitats in a changing world, say experts. The Great Barrier Reef is a case in point, as climate change advances, corals will migrate towards more suitable environments, requiring protected areas to shift.
Researchers will use a novel technique to track the dispersal of coral reef larvae and assess the effectiveness of marine protected areas in protecting fish stocks. The new approach, known as TRAnsgenerational Isotope Labeling (TRAIL), involves introducing an artificial tag into mature female fish just before spawning.
Researchers found a massive, rapid release of carbon may have triggered the Permian-Triassic extinction. The Great Bank of Guizhou fossil beds in China provide valuable insights into this event.
Researchers have identified a silent, natural disaster that silently wipes out coral reefs on clear sunny days during extreme low tides. The study reveals that these events are highly predictable and can be anticipated through alignment of weather patterns and tidal charts.
Researchers found that recovery rates increased over time, with sheltered bay areas supporting recovery of outer-reef sites. Effective local management practices may aid reef recovery, suggesting a promising sign for other regions.
A study published in Proceedings of the National Academy of Sciences found that marine reserves can double the number of young corals, leading to a healthier reef ecosystem. The Bahamas' Exuma Cays Land and Sea Park was used as a testing ground for this innovative approach.
Researchers found that close living quarters among coral in healthy sections of the Great Barrier Reef facilitate easy infection spread, despite warmer ocean temperatures. Higher temperatures drive disease outbreaks, with a strong connection between white syndrome and coral cover.
A new study finds that high ocean temperatures and low coral cover increase the risk of white syndrome, a deadly disease threatening the world's richest ecosystems. The research suggests that corals in high-density areas will be increasingly vulnerable to disease if global warming continues.
A recent study found that coral reef fish hatchlings can successfully return to their home reefs, with about 60% of young clownfish and butterflyfish making it back. The research also showed significant exchange between populations separated by open sea, highlighting the importance of marine protected areas.
Researchers have pioneered a new way to study fish populations by 'tagging' adult fish with a harmless isotope, enabling them to understand the extent to which young fish return to their 'home' area or go off to interbreed. The findings reveal that around 60% of juvenile clownfish returned to the home reef, while 40% came from distant ...
Coral reefs on Pulau Simeulue and Pulau Banyak were severely damaged due to the 2005 earthquake, with some species suffering up to 100% loss. However, despite initial mass mortality, some coral species are beginning to re-colonize shallow reef areas, offering hope for recovery.
A 300-year record of soil erosion in Kenya has been created using coral samples from the Indian Ocean, revealing a dramatic increase in erosion since British colonialism began. The study highlights the importance of sustainable land use practices to mitigate soil erosion and its consequences for food production.
The study challenges conventional thought on sediment transport in the GBR, showing large plumes of terrestrial material traveling up to 65-130km beyond the inner reef. This poses new risks for reef corals and highlights the need for rethinking hydrological modeling.
Researchers found that herbivorous fish play a key role in coral reef recovery from bleaching events. Exclusion of these fish led to reef degradation, while their presence boosted resilience.
Marine scientists discovered that baby fish can find their way back to their home coral reef by using their sense of smell, braving strong currents and predators. This unique ability has major implications for how reefs are managed and drives evolution on the Reef.
A rare species of batfish has emerged as a potential savior for coral reefs, consuming large amounts of seaweed that were choking the reef. By removing a cage, scientists observed the batfish cleaning up most of the weed in just five days and completely clearing it in eight weeks.
A recent study reveals that a rare batfish species is crucial in promoting the return to health of disturbed coral reefs overgrown with algae. Researchers found that only two of 27 herbivorous fish species had a significant impact on reef recovery, with parrotfishes and surgeonfishes unable to reverse algal blooms.
A Princeton University study finds that healthy coral reefs offer at least twice as much protection from destructive tsunami waves as dead reefs. The study uses a computer model to simulate the impact of tsunamis on reef-bounded shorelines, providing quantitative confirmation of a widely held theory.
A new study reveals that coral reefs are experiencing abnormal die-off rates, unlike anything seen in the past 11,000 years. The frequency of reef disturbances was at least an order of magnitude less than today's levels, according to Associate Professor John Pandolfi.
Researchers warn of imminent ecological extinction for reef sharks, with populations declining at alarming rates. Immediate reductions in fishing pressure are needed to give threatened species a chance of recovery.
Researchers found that reef shark abundance on reefs open to fishing is about ten times lower than on unfished reefs. High reef shark abundance was only apparent on the most strictly enforced no-take zones, suggesting moderate poaching can derail conservation efforts.
A scientific team has developed the world's first engineering model to predict how coral reefs will be affected by intense storms. The model takes into account factors such as colony shape, sea-bed strength, and wave force to estimate the likelihood of coral damage.
A new model developed by researchers at the University of California - Santa Barbara predicts the survival of coral reefs based on their shape and size. The study found that table corals with broad flat tops are more susceptible to strong wave forces, while bushy or mounded corals are less vulnerable.
Dr. Liana Talaue-McManus and Dr. John W. McManus, researchers at the University of Miami Rosenstiel School, were named Associates of the World Technology Network for their innovative work in marine science and technology.
A three-week expedition to French Frigate Shoals discovered many new species of crabs, corals, sea cucumbers, and other organisms. The expedition's findings provide a better understanding of marine biodiversity in the Hawaiian Archipelago.
Tiny Pacific 'housekeeper' crabs play a crucial role in preventing coral death by removing sediment from coral surfaces. Without these crabs, corals experience slower growth rates, increased tissue bleaching, and higher sediment loads.
Wade Cooper, a University of Miami student, has been awarded a $80,000 scholarship to advance his research on the early life stage dynamics of stony corals in natural environments. His work aims to aid in coral's survival in the face of climate change and ocean acidification.
A team of world-renowned scientists is conducting a 23-day research cruise to explore coral reef biodiversity in the Northwestern Hawaiian Islands Marine National Monument. The census aims to provide baseline information on the diversity, distribution, and abundance of ocean life, with a focus on lesser-known species.
Coral reefs face severe threats from human activities, and current MPAs are often insufficient to protect biodiversity. A global network of MPAs with optimal size and isolation is necessary to conserve coral reefs.
A new study reveals that coral reefs in Aceh, Indonesia, can survive devastating events like tsunamis, economic crises, and civil wars if effectively managed. Managed reefs showed significantly higher coral cover than open-access areas.
Researchers urge governments to implement stricter controls on the live reef fish trade, a growing threat to coral reefs. The trade has devastating effects on the ecosystem, including the depletion of coral reef stocks and the spread of destructive harvesting methods.
A global survey of coral reefs, built using NASA satellite images, found that only a handful of marine protected areas provide effective protection for fish species and marine life. The study highlights the need for larger reserves to protect these ecosystems.
A UCF study found that coral tissue damage cannot heal near pollution sources on land, leading to reef decline and increased hurricane risks. The loss of coral harms natural ecosystems and the tourism economy, while also protecting coastal areas from storms.
A Johns Hopkins University researcher found that corals can switch from using aragonite to calcite minerals in building their skeletons based on the magnesium-to-calcium ratio of seawater. This change poses questions about coral reefs' future survival amid global warming and ocean acidification.
A new report warns that carbon dioxide emissions are dramatically altering ocean chemistry, threatening marine organisms such as corals and pteropods. The report highlights the potential impacts on marine food webs, biodiversity, and ecosystems, emphasizing the need for further research to understand these changes.
The study found that 40% of marine protected areas are smaller than 1-2km2, an insufficient size to protect large fish and other animals. To effectively conserve coral reefs, each Marine Protected Area should be at least 10-20 km in diameter.
A global assessment of coral reef protection reveals that marine protected areas (MPAs) are often poorly managed and fail to effectively safeguard these critical ecosystems. The study found that many MPAs lack enforcement mechanisms, leading to threats such as resource extraction, poaching, pollution, coastal development, and overfishing.
The world's coral reefs are left vulnerable by insufficiently managed marine protected areas (MPAs), according to a new global analysis. The study found that many MPAs are too small and far apart, leaving them susceptible to poaching and external human threats such as pollution and overfishing.
Scientists have discovered a link between bacterial growth fueled by algae and the death of corals. The study shows that bacteria suffocate corals by cutting off oxygen supply, leading to a positive feedback loop that accelerates reef decline. Human activities such as overfishing, pollution, and climate change exacerbate this process.
A recent study found that coral reefs in the Seychelles have suffered severe damage from global warming, leading to a 90% decline in coral cover and a significant loss of biodiversity. The damaged reefs are unable to reseed and recover, resulting in profound impacts on other organisms in the ecosystem.
Researchers discovered that some coral species can replenish energy reserves by increasing feeding rates, allowing them to recover from bleaching events. However, even resilient species face a significant threat as global warming projections suggest up to 60% of the world's coral reefs could be lost within 10-30 years.
A new study found that branching coral Montipora capitata sharpens its plankton intake when bleached, increasing its chances of recovery. The findings indicate that any coral, regardless of shape or location, can recover if it can increase feeding.
A group of high school students will participate in a groundbreaking coral reef research expedition to the Red Sea, assessing threats such as climate change, ecotourism, and pollution. The team's findings will guide international policy on coral reef management and have significant economic and social implications for the world's oceans.
The Khaled bin Sultan Living Oceans Foundation is conducting a pioneering study on the Farasan Islands Marine Protected Area off the coast of Saudi Arabia. The research will assess the effects of ecotourism, pollution, over-fishing, climate change, dredging, and development on coral reefs.
Cold-water corals are vulnerable to ocean acidification, which can harm their ability to build skeletons. By 2100, only 30% of cold-water reefs may still be in waters supersaturated with aragonite, a form of calcium carbonate.
Scientists have retrieved high-resolution climate records from coral cores off the Tahiti coast, spanning 20,000 years and providing insights into sea level change and El Niño anomalies. The longest continuous coral core is 3.5 meters long, representing 350 years of growth, and contains valuable information on climate variability and p...