Articles tagged with Coral Reefs
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Researchers found degraded coral reefs are quieter than five years ago, with 40% fewer juvenile fishes attracted compared to healthy reefs. The loss of reef sounds could have devastating consequences for reefs, as fish play critical roles in maintaining their health.
Research by UCI scientists finds that corals in locations with frequent temperature changes are more resilient to bleaching. This discovery provides a better understanding of coral reef health and can inform conservation efforts.
A new study reveals that reefs experiencing frequent temperature changes are better equipped to resist coral bleaching during ocean warming events. The research highlights the importance of high-frequency temperature variability in reef regions worldwide, providing valuable insights for conservation efforts and marine spatial planning.
Scientists find nearly 80% of coral reefs on Upolu Island have less than 10% cover, with recent coral death and smaller fish populations. Local human activities and climate change exacerbate the issue, while protected areas show signs of effective management.
Researchers found that Great Barrier Reef corals have enough genetic variation to adapt to rising ocean temperatures, allowing them to potentially survive for at least another century. This offers a glimmer of hope for conservation efforts, but also highlights the need to take action against global warming.
A common Great Barrier Reef coral species has enough genetic diversity to adapt to warming conditions, but its future remains uncertain. The model predicts that the coral will become more sensitive to temperature swings, but it will still survive for at least another century.
A new study found that corals on the northern Great Barrier Reef experienced a catastrophic die-off following the extended marine heatwave of 2016. The amount of coral death was closely linked to the amount of bleaching and level of heat exposure, with the northern third of the reef being the most severely affected.
New research reveals coral bleaching events reduce fish species and community diversity on reefs. The Great Barrier Reef suffered significant losses after a mass bleaching event in 2016, with some fish species declining sharply.
Researchers advocate for harnessing dynamic ecological forces to facilitate coral reef ecosystem recovery. By controlling factors like coral density and site selection, restoration practitioners can maximize growth rates and minimize mortality, promoting positive feedback processes.
Researchers found that fringing coral reefs can effectively protect shorelines from extensive erosion caused by tropical cyclones. The study used Ningaloo Reef as a case study and showed that the reef's shape and structure can dissipate large waves, reducing coastal damage.
A new model simulates sediment transport and coral reef development in response to climatic variability. The study reveals that high sediment loads prevented coral growth during early sea level rise, while a balance between climate, sea level, and physiography enabled reefs to thrive.
A recent study found that high levels of submarine groundwater discharge (SGD) can harm coral reefs by causing stress and accelerating bioerosion. However, when SGD is at low levels, corals can actually thrive on the reef, suggesting a potential solution to mitigate reef degradation in urban areas like Maunalua Bay.
A new study found that despite the Philippine government's ban on destructive fishing methods in 1932 and 1998, many fishers continue to use explosives and poison, causing significant damage to coral reefs. The research suggests that ensuring young fishers engage with sustainable fishing methods is crucial to reducing this harm.
A new study published in Nature shows that ocean acidification caused by carbon dioxide emissions will severely slow coral reef growth. The research team manipulated seawater chemistry to reflect end-of-century projections, finding that increased acidity hinders calcification and reef growth.
By 2050, most coral reefs are expected to experience net sediment dissolution, impacting health and biodiversity. Ocean acidification is linked to reduced calcium carbonate saturation, affecting coral growth rates.
Researchers found that nearly 97% of recreational fishers considered poaching personally unacceptable, while a small minority believed it was common. The study suggests that the 'false consensus effect' may be influencing poachers' perceptions, making them overestimate the prevalence of poaching.
A new study by Cornell University reveals that oceanic plastic trash can convey disease to coral reefs, leading to devastating consequences. The research found that the presence of plastic debris on reefs increases the likelihood of disease from 4 to 89 percent.
A recent study has found that contact with plastic waste significantly increases the chance of disease in corals. Dr. Joleah Lamb led the research, which examined over 120,000 corals on 159 reefs across Asia-Pacific regions. The findings highlight the critical role plastics play in promoting disease among marine organisms.
A new study found that 11.1 billion plastic items are lodged on coral reefs across the Asia-Pacific region, increasing the risk of coral disease by 85x. Plastic debris is linked to a 20-fold increased risk of disease, particularly skeletal eroding band disease.
A comprehensive review of literature on coral resilience highlights the need for urgent action to reduce greenhouse gas emissions. The study also identifies novel management techniques and overlooked reef areas to protect against climate change impacts.
Researchers discovered significantly smaller eyes and tails in fish from coral reefs subjected to intense commercial shark fishing, highlighting the impact of human-driven shark declines on marine ecosystems. This finding underscores the urgent need to understand the consequences of shark removals on ecosystem dynamics.
A new study finds that warmer temperatures are turning the majority of sea turtles in the Great Barrier Reef population female, with some beaches having as few as 1% male turtles. This shift could threaten the long-term sustainability of the colony.
Three new species of zoantharians were discovered in the Indo-Pacific region, expanding our understanding of coral reef diversity. One species was named after President Tommy Remengesau of Palau, highlighting the nation's support for marine conservation.
Global warming is accelerating coral bleaching, threatening the future of coral reefs and millions of people reliant on them. The study documents a dramatic shortening of the gap between pairs of bleaching events, now occurring every six years on average.
Researchers have developed a new sowing approach for coral reef restoration, allowing for the handling of large numbers of corals in a short amount of time at significantly lower costs. The approach minimizes costs and time required for outplanting corals by settling larvae on specifically designed substrates.
A recent study led by Harvard University researchers found that coral restoration efforts can have a positive impact on fish communities in the short term and over time. The study showed that even after just one week, significantly more fish and a greater diversity of species were present at experimental coral beds.
Researchers assess hurricane damage to Caribbean coral reefs, finding severe injury and changes in composition. Despite encouraging signs of recovery, scientists note increased vulnerability due to climate change and stressors.
Research suggests that sixbar wrasse baby fish settle on coral reefs during the moon's last quarter, resulting in a 10% larger size, likely due to delayed arrival. This delay allows them to avoid predators on bright full moon nights and increases their chances of survival.
Researchers identified 100 undisturbed reefs with potential to provide coral larvae to damaged areas, promoting regional recovery. Effective local protection is crucial to support this ecosystem's resilience.
New research from Oregon State University reveals that a heat-tolerant Symbiodinium species may not be able to form a healthy partnership with corals, exacerbating the threat of climate change. The study used an established model system, sea anemones, to test the hypothesis.
Researchers created detailed photomosaics of the coral reef at Palmyra Atoll, discovering non-random clustering and a link between coral growth and reproductive strategy. The findings have implications for coral reef management and conservation.
The study found significant bleaching in Kimberley region and mild bleaching at Rottnest Island. Ningaloo Reef escaped bleaching, but experienced temperature-related coral mortality.
A recent study published in PLOS ONE found that fish biomass is up to five times greater in protected zones compared to unprotected areas at northernmost reefs of the Great Barrier Reef. The researchers analyzed data from 31 reefs and found that even in lightly exploited areas, protected zones showed significant benefits for fish popul...
A newly described species of brown-and-white Philippine butterflyfish was found 360 feet beneath the ocean's surface. The discovery was made after a live specimen traveled from the deep reefs to an aquarium in San Francisco, where it was noticed by biologists due to its unique fin spine.
A new study reveals that healthy coral populations can produce significantly more offspring than degraded populations, with higher percentages of successful parents and increased reproductive output. This finding highlights the critical role of healthy coral reefs in supporting reef recovery and re-seeding other areas.
A recent expedition to the Flower Garden Banks National Marine Sanctuary revealed a 10% drop in salinity levels due to Hurricane Harvey's floodwater plume. The team hopes to track the plume as it migrates through the Gulf, aiming to understand its impact on the reefs' health.
Researchers at SDSU and partners have developed a new method to identify medicinal properties in unknown coral reef molecules. By analyzing molecular fingerprints, they can predict the potential therapeutic value of these molecules.
Researchers found that bleached anemones led to a drastic fall in viable eggs among clownfish (-73%) and increased cortisol levels. This study reveals the impact of climate change on coral reefs and the fish that depend on them.
Recent findings suggest that rapid sea-level rise of about 20m in less than 500 years occurred in the last deglaciation, causing the drowning of fossil coral reefs in Hawaii. The study provides new evidence of a meltwater pulse, associated with catastrophic ice-sheet collapse and the Earth's warming after the last ice age.
Parrotfish rotationally harvest their favorite food, creating pockets of space without turf algae that enable tiny coral larvae to settle and grow. This behavior supports coral reef health by reducing the harmful impact of turf algae.
A new study found extensive loss of branching corals and changes in coral community structure on the Palm Islands over the past century. The area's hard coral cover is declining, with recovery severely lagging behind predictions.
Branching Acropora corals, once a dominant reef-building species, now represent less than 5% of living corals on the Great Barrier Reef. The decline in resilience is linked to discrete disturbances during the early to mid-20th century.
A new study using old nautical charts and satellite data found that more than half of the coral reef habitat mapped in the 1770s was no longer there, with some areas experiencing up to 90% loss. The research has important conservation implications and highlights the need for a shifted spatial baseline.
Researchers analyzed 18th century British nautical charts to track the loss of coral reef habitat in the Florida Keys. The study found a 52% loss of coral area, with nearshore areas declining by 87.5% and 68.8%. This research highlights the need for longer-term conservation efforts based on historical data.
A global study of over 5,000 people from 40 countries reveals diverse communities form strong attachments to the Great Barrier Reef, regardless of geographic location. The research suggests resource managers should engage with global communities to build broad public support for protecting the reef.
International scientists issue recommendations for future research on coral acclimatization and adaptation to climate change. Key findings suggest that while there is a 'nugget of hope' for corals to adapt, major knowledge gaps remain regarding their ability to cope with rapid warming,
A team of marine biology researchers from King Abdullah University of Science and Technology (KAUST) identified key mechanisms that enable corals to adapt to environmental changes. The study suggests that microbes play a vital role in coral physiology, allowing them to adjust quickly under changing conditions.
A new study reveals that reef fish are less affected by ocean acidification than previously thought. The researchers used a laboratory setting to mimic natural daily changes in water chemistry, which provided fish with a recovery period and reduced their sensitivity to higher carbon dioxide levels.
An Australian anthropologist believes a 1818 Indian newspaper article reveals the fate of La Pérouse's crew, who survived shipwreck on the Great Barrier Reef near Murray Island. The crew spent several months building a small vessel to return to France before being forgotten.
Research has found that ancient coral reefs were bolstered by their bond with red algae, which also strengthens them today. The study suggests that understanding this relationship is crucial for preserving coral reefs in the face of climate change.
Scientists have created magnetic nanobiocomposite beads that can effectively remove oxybenzone, a coral killer found in sunblock, from seawater. The beads, made from environmentally friendly materials, can capture high concentrations of oxybenzone and have shown promising results in laboratory tests.
Researchers found that seasnakes living in polluted areas have darker skin, which helps them bind and rid their bodies of contaminants. This is an example of industrial melanism, where dark-colored varieties thrive in industrial environments.
Research finds that boat noise affects cleaner fish behavior, leading to increased cheating and decreased cleaning efficiency. This study highlights the need to control man-made noise in protected habitats.
Researchers examined spearfishing practices in the Caribbean, finding that compressor divers targeted higher-quality fish more efficiently than free divers. The study highlights the importance of understanding fishing methods to develop effective management strategies for coral reefs.
A new study found that Caribbean staghorn corals are benefiting from 'coral gardening,' which involves planting laboratory-raised coral fragments on reefs. The research provides important benchmarks for the long-term survival of coral reefs worldwide, which have been declining due to climate change and ocean pollution.
Researchers have made a breakthrough in genetically engineering microalgae found in corals to enhance their stress tolerance and prevent coral bleaching. This could be a game-changer for ocean productivity and global coral reef conservation.
A study found that oil impairs coral reef fish ability to find homes and evade predators, affecting their behavior and growth. The impact of oil on coral reefs could be catastrophic, with many people relying on these ecosystems for food and income.
A Florida State University professor's discovery of deep-sea coral reefs in the North-Pacific has sparked hope for vulnerable coral colonies. The research suggests that factors such as high chlorophyll levels and suitable currents may contribute to the reefs' success, but mysteries remain about their presence at these depths.
An innovative system is proposed by Professor Mo Ehsani to address coral bleaching: a single-piece pipe feeding cooler water to stressed coral. The InfinitPipe uses wave energy and clean, renewable sources to power the pump.
Researchers will develop coral disease forecasting models for Hawai'i, U.S.-affiliated Pacific Islands, and the Great Barrier Reef using field work, experimental data, and satellite information. The project aims to identify local environmental stressors increasing disease susceptibility and prioritize management practices.