Articles tagged with Coral Reefs
Scientists have developed a new model to predict the health of coral reefs using data from the Khaled bin Sultan Living Oceans Foundation's Global Reef Expedition. The model identifies key drivers of coral reef health, including biophysical and anthropogenic factors.
The coming decade will determine whether coral reefs survive, with up to 30% predicted to persist if global warming is limited to 1.5 degrees Celsius. Policymakers are called upon to address climate change, improve local conditions, and restore coral reefs through coordinated actions and innovative approaches.
Researchers warn of devastating consequences for coral reefs as three key species experience changes in distribution due to the climate crisis. Conservation efforts are urged to focus on regions such as the Abrolhos region and the Gulf of Mexico.
Researchers at NIST used an emerging molecular profiling method to analyze a type of tumor-like disease called growth anomalies in corals. The study identified 18 small molecules that promise to help better understand the series of molecular reactions leading to the disease, which affects coral skeletons and soft tissues.
A study analyzed fossil dermal denticles from ancient coral reefs and modern reefs to estimate Caribbean shark abundance before and after human settlement. The results show a significant decline in shark populations, with fast-swimming species facing the greatest losses.
Scientists reconstructed ancient shark communities using fossil shark scales, revealing a three-fold decline in abundance since prehistoric times. The study provides insight into what a 'healthy' shark community might look like on a coral reef before human exploitation.
Smithsonian scientists discovered shark denticles on fossil- and modern coral reefs, revealing changing shark roles over 7000 years. Shark populations declined due to human hunting and habitat loss, impacting ecosystem balance.
A new study found that baby coral reef fishes have evolved to grow larger muscles and swim faster than their non-reef relatives, allowing them to outpace other fish in the ocean. This adaptation is thought to be related to their association with reefs, where they need to navigate open ocean currents to find a home.
A recent study found that coral reefs in the South China Sea adjust their trophic patterns in response to environmental conditions. By analyzing zooxanthellae density, nutrient levels, and light intensity, researchers discovered that corals can shift from autotrophic to heterotrophic modes of nutrition, enhancing their adaptability to ...
Climate change is expected to suppress the growth of Florida's coral reefs due to their inability to migrate north. The warming seas and increasing frequency of water-cooling cold snaps will make it difficult for corals to adapt and survive, leading to further decline and potentially extinction.
Researchers at UCSB's LTER sites investigate the impact of climate change on diverse ecosystems, including kelp forests and coral reefs. Their findings highlight the importance of long-term research in understanding complex relationships between environmental drivers and ecosystem responses.
Five scientists from Israel and Jordan have been awarded research grants by the Red Sea Reef Foundation to study the unique corals in the northern Red Sea. Their innovative projects aim to monitor reef health, develop coral bioindicators, and refine coral farming techniques to support conservation efforts.
A Southern Cross University study reveals global coral reef ecosystem calcification is declining at a rate of 4.3% yr-1, with consequences for ecosystem survival. The decline may be linked to stress events and reduced coral cover, potentially impacting food and habitat production.
A recent study by the University of Melbourne revealed that young clownfish living closest to shore are dying faster due to exposure to artificial lighting. The research team found that nearshore juvenile clownfish grew 44% more slowly under artificial light than those in natural conditions.
New research suggests that artificial ocean alkalinization can offset ten years of projected acidification in the Great Barrier Reef. The study used a high-resolution model to simulate the impact of alkalinity injection on the reef's acidity, finding that it could sequester 35,000 tons of carbon per year and alleviate the effects of oc...
Researchers found that table corals can recover habitats on the Great Barrier Reef at a rate 14 times higher when abundant, compared to reefs without them. The study highlights the importance of protecting table corals to promote reef recovery and biodiversity.
Methylene Blue, a century-old medicine, has been found to be an effective UVB blocker that absorbs UVA and UVB rays, promotes DNA damage repair, and is safe for coral reefs. The study suggests it could become an alternative sunscreen ingredient, supporting the environment and human skin health.
A new study suggests that managing local environmental conditions can help coral reefs persevere in the face of climate change. Local factors like macroalgae presence and nutrient pollution exacerbate coral loss, but also offer opportunities for management to boost reef resilience.
A new study finds that local management of coral reefs can increase their chances of recovery after devastating bleaching events. Caring for reefs on a local scale may help them persist globally by minimizing environmental stressors such as overfishing and pollution.
A recent study published in Science found that local conditions play a significant role in coral reef survival after climate-driven heatwaves. Managing global climate change and local factors such as nutrient pollution and overfishing can help reefs withstand the effects of climate change, according to researchers.
New guidelines for coral reef restoration aim to optimize efforts for ecosystem benefits and human protection from flooding. Research suggests targeting shallow, energetic areas for restoration to reduce coastal flooding.
New research on coral reef growth rates reveals a window of opportunity to save the world's coral reefs, but time is running out. The study shows that unless carbon dioxide emissions are drastically reduced, the growth of coral reefs will be stunted due to climate change.
A global study suggests that coral reefs will experience significant declines in calcium carbonate production under projected climate scenarios. The models predict that 63% of reefs will continue to grow by 2100 under RCP2.6, but 94% will be eroding by 2050 under RCP8.5.
A long-term study from WCS found that no-take marine protected areas increased fish populations by 42% and achieved the benefits of stable and high production for fishers, while protecting threatened ecosystems. Simulation models were tested with empirical data, showing that no-take MPAs can compensate for lost fishing grounds and stocks.
Northern Red Sea corals have been found to be resistant to higher temperatures due to their symbiotic algae and bacteria. The study reveals that these corals can withstand average temperatures up to 5°C higher than usual, offering hope for saving coral reef ecosystems.
Researchers have created the first atlas of stony coral cell types, revealing specialized immune cells that aid in coral resilience. The study provides new insights into coral biology and evolution, shedding light on the molecular mechanisms behind coral growth and symbiosis.
A world-first study found that partially protected yellow zones within the Great Barrier Reef Marine Park are still important for conserving reef fish populations. The areas, which limit fishing through gear restrictions, contained up to 69% of the target fish numbers in adjacent no-fishing green zones.
Researchers found evidence of sound-related genes in corals, which could enable them to use sound to interact with their environment. This discovery has significant implications for understanding coral communication and developing restoration and conservation projects to protect these critical ecosystems.
A new study uses a citizen science approach and AI to analyze vast amounts of 3D coral reef imagery, providing insights into the health of coral ecosystems. The NeMO-Net video game harnesses the power of citizen scientists to generate training datasets and classify coral species.
Scientists found that eradicating rats from tropical islands restores critical nutrient cycles to coral reefs within 16 years. Seabird populations are increasing on islands where rats have been eradicated, boosting the health of surrounding ecosystems and improving their chances of rebounding.
Over 500 million people rely on coral reefs for protection and resources, but these ecosystems are threatened by global warming. A team of scientists recommends a massive energy transition as the most effective action to limit coral reef decline, with international political support necessary.
Researchers used image-analysis methods from engineering to spot minute movements of a stony coral. The study found more activities happening under nighttime conditions and provided insights into coral behavior and physiology.
A new study reveals that Northern Red Sea corals can tolerate high temperatures but are sensitive to even slight cold spells, which can cause bleaching. Researchers found that corals from the Gulf of Aqaba responded similarly to heat stress and did not bleach at high temperatures after recovering from a cold winter.
A new study reveals coral reefs offer over $1.8 billion in annual flood protection to US coastal communities, preventing 100-year flooding zones from increasing by 23% and impacting 53,800 more people. The US has 200 miles of high-value reefs worth millions per mile.
The study created high-resolution molecular maps of coral reef organisms using 3D imaging techniques, revealing specific microbial and viral functions that are key components of the coral microbiome. The research has direct implications for coral reef restoration and management.
Scientists at the University of York highlight the need for more research into the environmental impact of sunscreen on coral reefs. The study reveals that UV-filter compounds have toxic effects on marine organisms and that current research has significant gaps, particularly in understanding climate-related risks.
Researchers found that algae colonizing dead coral can lead to false impressions of a healthy reef ecosystem. This challenges traditional methods for assessing coral health, which rely on measuring calcium carbonate production, as it may not accurately account for the impact of algal overgrowth.
Researchers at Florida State University found that certain coral species vary in their response to thermal stress, with some surviving and others dying. This diversity helps maintain coral reef resilience, much like a diverse financial portfolio.
The Khaled bin Sultan Living Oceans Foundation's Global Reef Expedition found the Chagos Archipelago to be home to some of the most diverse coral reefs in the Indian Ocean. Despite being relatively undisturbed, human impacts were evident, and mass bleaching caused widespread coral mortality.
The study reveals that despite local coral loss, global extinction risk is lower for most species due to broad geographic ranges and huge population sizes. The researchers estimate that only a few dozen of the 80 considered species are threatened with extinction.
A University of Hawaii study found that Oahu's marine protected areas do not adequately protect populations of herbivorous fish species that eat algae on coral reefs. The research suggests that environmental characteristics like habitat complexity and depth have a greater impact on these fish populations than MPA protection.
A recent study reveals that the soundscapes of coral reef ecosystems can recover from hurricanes like Irma in just 24-48 hours. The researchers used underwater microphones to monitor the reef's acoustic picture before and after the storm, finding that the snapping shrimp were back to pre-storm sound levels within 24 hours.
A study analyzing 50 years of coral reef biodiversity research reveals widespread 'parachute science,' where international scientists conduct field studies without local engagement. The practice disproportionately affects lower-income countries, excluding host-nation scientists from authorship and limiting knowledge exchange.
Research reveals that coral reefs in the Maldives get more than 70% of their predator's diet from offshore resources. The findings highlight the importance of understanding food web dynamics to predict impacts of climate change on marine ecosystems.
A new study reveals a unique link between the diet and distribution of coral reef fishes, highlighting planktivores as potentially vulnerable to environmental change. The Indo-Australian Archipelago is a global marine biodiversity hotspot, where planktivorous fish species are more diverse than others.
Researchers found significant distribution disparities in coral reef fish species across trophic groups, with a disproportionate number of planktivores in the IAA. Planktivore species richness was highest near Indonesia and the Solomon Islands, but declined sharply outside the region.
Recent studies suggest organic UV filters in sunscreens may harm coral reefs, but evidence is limited and inconclusive. Researchers recommend further field and lab studies to assess environmental risk and develop a coral environment risk assessment framework.
Researchers at Newcastle University and James Cook University have created a comprehensive database of coral spawning information, spanning over 40 years. The Coral Spawning Database (CSD) provides insights into environmental cues influencing spawning timing, such as temperature and daylight patterns.
A recent study reveals Florida's delayed response to a coral disease epidemic resulted in massive coral deaths, with key findings highlighting the importance of early intervention and effective management strategies.
A study predicts that different species of coral reef fishes will respond variably to climate change, with some exhibiting rapid responses and others being more vulnerable. The research identified seven parameters that may serve as biomarkers for evaluating the impact of elevated temperatures on these fish.
Cold-water coral reefs in the Western Mediterranean have been growing almost continuously for 400,000 years, with major climate swings controlling their development. The study reveals that intense monsoon events also had a detrimental impact on these reefs.
New research found that baby sharks are born smaller, more exhausted, and undernourished when exposed to warmer ocean temperatures. The study, conducted by the ARC Centre of Excellence for Coral Reef Studies, suggests that this could lead to a decline in their ability to survive in environments already challenging for them.
A new study found that as ocean temperatures rise, baby sharks are born smaller, exhausted, and undernourished, facing difficult environments for survival. The research suggests the future of these species will be threatened by warming waters.
Rutgers-led research found coral reef fish larvae dispersal varies significantly over time and seasonally. This variability affects population estimates and conservation strategies, highlighting the need for more nuanced studies on dispersal patterns.
A UCF engineering and biology team tested how well staghorn coral skeletons withstand natural forces and human impacts, discovering a unique safety feature: pores that relieve stress and prevent catastrophic failure. The findings will inform efforts to transplant nursery-reared coral into the wild and support future restoration efforts.
A new study mapped the geographic distribution of live corals across Hawaiian waters, revealing areas of degraded reef and 'refugia' where corals show resilience to human-driven environmental stressors. The detailed maps will inform conservation efforts and help protect coral reefs from critical threat levels by 2050.
Researchers found that most parrotfish predation scars on Caribbean coral heal within weeks, while larger scars have minimal healing. The study suggests that managing parrotfish populations may be crucial to maintaining resilient reefs.
Researchers found that introducing native herbivorous crabs to coral reefs in the Florida Keys led to rapid declines in seaweed cover and returned small corals and fishes. The crabs improve habitat conditions for corals and fishes, providing a new tool for reef restoration.
Researchers discovered that some corals can survive prolonged heatwaves and recover their food source, providing a glimmer of hope for coral reef survival. The study's findings suggest that protection from local stressors may help corals recover, offering an innovative strategy for conservationists to support coral survival.
Researchers found that coral reef ecosystems can no longer retain deposits of calcium carbonate due to ocean warming and acidification, leading to accelerated erosion. By the end of the century, coastal protection will be lost, impacting infrastructure and communities.