Articles tagged with Coral
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A global study reveals signs of complete extinction in the Canary Islands, where a previously undetected mass mortality event was identified in mid-2022. The affected species is no longer capable of reproducing, potentially leading to local extinction with severe ecological consequences.
A £3.7 million project aims to provide unprecedented analysis of mesophotic coral reefs' vulnerability to climate change and identify ways to protect them. The study will use state-of-the-art technologies to collect comprehensive data on biodiversity, health, and environmental parameters.
Dr. Jeremy Horowitz has been selected for The Oceanography Society Early Career Award for his contributions to advancing black coral taxonomy, including new species and families. His work combines classical morphological taxonomy with phylogenomics and bioinformatics to describe new taxa and reconstruct evolutionary histories.
A joint study by Tel Aviv University and the University of Haifa discovered that a soft coral's tentacles drive rhythmic movements through a decentralized neural pacemaker system. The system enables each tentacle to perform independent movement while achieving precise collective synchronization.
Researchers uncover the role of opsin genes in driving coral speciation through habitat-specific adaptation to light cues. The study proposes a new hypothesis on the origin of species in corals, shedding light on the mechanisms behind reproductive isolation and biodiversity.
A research team has developed a novel conceptual model to understand the adaptive strategies of the deep-sea black coral Bathypathes pseudoalternata and its symbiotic microbiome. The study reveals that the coral hosts a stable and highly streamlined microbiome that supports its survival in extreme environments.
A new study by the University of Oxford and WCS reveals that connections between coral reefs can stabilize reef health, reducing the risk of collapse. By simulating future reef conditions under different management scenarios, researchers found that a dual approach improving land and sea conditions provides the best outcomes for reefs.
Researchers found that coral reefs governed the pace of climate recovery by tuning the planet's carbon and climate cycles. The study suggests that reefs played a crucial role in stabilizing climate, but modern reef systems are declining due to warming and ocean acidification.
A meta-analysis of scientific literature reveals that pathogens are the primary driver of mass mortality events in sea urchins, with 33% of events attributed to them. Storms and extreme temperatures also play a significant role, with 25% and 24% of events respectively.
A new study reveals that ocean acidification is accelerating at a rate outpacing atmospheric CO2 levels, with the Northeastern Pacific Ocean experiencing rapid acidification. The research analyzed coral skeletons from the past century, showing that CO2 has been accumulating in North American waters faster than in the atmosphere.
A new study models the impact of climate change on the GBR, forecasting a rapid coral decline before the middle of this century. However, curbing emissions and strategic management can help improve coral resilience, especially in well-mixed waters with good larval replenishment.
Scientists at UC Riverside are using advanced technology to understand how corals regain life-giving algae after suffering from heat stress. By studying the cellular and genetic mechanisms of algae reestablishment, researchers aim to develop practical tools to help reefs survive ocean warming.
Researchers at Queensland University of Technology have discovered a three-step process in coral fragments attaching to reefs, involving an immune response, tissue anchoring, and skeleton building. The study reveals distinct biological differences between coral species influencing attachment efficiency and growth rates.
A soft coral's ability to stiffen its skeleton in response to danger has been studied by Penn Engineers, revealing a mechanism known as granular jamming. By compacting mineral particles and expelling water, the coral's tissues create a rigid structure that can withstand external forces.
A new study documents the functional extinction of Acropora corals from Florida's Coral Reef following a record-setting marine heatwave in 2023. The heatwave caused catastrophic mortality rates, leading to a collapse of ecological function and marking what scientists call a functional extinction.
Researchers at the University of Technology Sydney discovered that tailored lipid supplements can significantly increase coral larvae's strength, speed, and survival rate. This innovation has major implications for reef restoration projects, which aim to improve larval supply but often face low post-settlement survival rates.
A new method, pioneered by University of Sydney student Carra Williams, uses neutron computed tomography to identify well-preserved pockets of coral skeleton that can reveal precise timelines of sea-level and climate shifts. The technique has the potential to transform how scientists reconstruct ancient climates.
A team of international marine scientists urges reform to licensing and regulation of coastal restoration projects. The authors argue outdated systems hinder progress toward ambitious global targets to restore 30% of degraded ecosystems by 2030.
Researchers will analyze genetic diversity and structure of four key sponge species to enhance resilience in restored populations. The project aims to build ecological resilience in vulnerable marine environments through a genetics-based approach.
Most coral reefs in the western Atlantic are projected to stop growing and begin eroding due to global warming, with more than 70% expected to decline by 2040. The study also found that reefs will lag behind sea-level rise, resulting in increased flooding risks along vulnerable coasts.
Researchers created Bacterial Reef Ink, a living material that stimulates coral larvae to attach and settle. The ink's customized bacterial strains increased coral settlement by fivefold in test tanks.
Research reveals that even thermally tolerant coral species like Stylophora pistillata can experience reduced growth and increased metabolic demand under chronic elevated baseline temperatures. However, some corals can recover when waters cool in the winter, suggesting a potential for resilience.
Researchers at NTU Singapore create a new, eco-friendly sunscreen from Camellia flowers that blocks UV rays without harming corals. The pollen-based gel demonstrates comparable or superior UV protection to commercial sunscreens and regulates skin temperature more effectively.
New research demonstrates that corals naturally thriving in extreme environments can be used to boost the resilience of reef sites. Despite being transplanted to more stable conditions, these corals retained their heat tolerance and activated pathways associated with DNA repair and homeostasis.
A single species of coral in the Alcatrazes Archipelago retains about 20 tons of carbon per year, equivalent to the carbon emissions from burning 324,000 liters of gasoline. This stored carbon can last for centuries or millennia, making subtropical coral reefs like Alcatrazes potential greenhouse gas sinks.
Researchers at Ohio State University developed two technologies to support the survival and growth of baby corals, combining Underwater Zooplankton Enhancement Light Array (UZELA) with 3D printed artificial settlement modules. This combination doubles coral survivorship and quadruples growth, providing a promising solution for coral re...
An international team of coral scientists calls for urgent regulatory reform to support assisted gene flow, a powerful tool to boost coral resilience. The researchers outline reforms needed to enable cross-border coral exchanges to introduce new genetic diversity and preserve coral diversity.
A recent study found that the 2014-2016 Northeast Pacific marine heatwave caused unprecedented ecological disturbance, resulting in widespread kelp and seagrass declines and mass mortality events. The research highlights cascading impacts on species interactions, plankton communities, and offshore ocean productivity.
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.
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.
Research from the University of Queensland found that coral larvae traveling further can make populations stronger, as they share genetic variation among nearby reefs. This study quantified for the first time how far coral larvae disperse on the Great Barrier Reef and its impact on population connectivity.
A recent study predicts the origin of Chondria tumulosa, a cryptogenic red macroalga taking over Hawaiian coral reef ecosystems. The research provides tools for resource managers to develop effective management strategies.
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 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.
High levels of pollution and sea-level rise have led to an explosion in sea-urchin numbers, threatening the recovery of Hawaii's coral reefs. The reef in Hōnaunau Bay shows slow growth and high erosion rates, highlighting the need for robust fisheries management.
Researchers have developed an image-analysis tool called SeaSplat that cuts through the ocean's optical effects and generates images of underwater environments with accurate colors. The team paired SeaSplat with a computational model to convert images into three-dimensional underwater worlds, allowing for virtual exploration.
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.
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 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.
New study models spatial patterns of grazing halos around coral reefs and finds that halo patterns can signal reef resilience. The research suggests that stable halos exist where herbivores are limited by predators, while oscillating halos may indicate a shift in system health.
Scientists discovered a unique movement strategy in free-living corals that helps them navigate and migrate towards optimal light conditions. Pulsed inflation, similar to jellyfish movements, aids in self-righting, sediment rejection, and phototaxis.
Free-living mushroom coral Cycloseris cyclolites exhibits complex phototactic mobility in response to light direction. The coral migrates using rolling, sliding, or pulsing movements to navigate towards blue or white light sources.
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 have developed a coral-inspired biomimetic material that promotes faster healing and dissolves naturally in the body. The material has been shown to fully repair bone defects within 3-6 months, overcoming limitations of traditional synthetic substitutes.
A new study found that climate warming can increase the severity of bacterial infections in cold-blooded animals like corals, insects, and fish. The researchers analyzed data from 60 experimental studies and found that infected animals were more likely to die when exposed to higher temperatures.
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.
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 dead coral skeletons left after bleaching events protect seaweed from herbivores, enabling its quick colonization and outgrowth over young coral. This complex landscape prevents new corals from settling and surviving on the reef.
Researchers have discovered microplastics in all three parts of coral anatomy, including surface mucus, tissue, and skeleton. This finding may explain the 'missing plastic problem' and suggests that corals could be sequestering plastic waste from the ocean.
Research reveals that informing tourists about climate change does not harm their experience and can encourage sustainable actions. Eighty percent of participants wanted more information on climate change to help, highlighting an opportunity for tourism operators to enhance visitor experiences while advancing climate action.
A research team from the University of Göttingen has developed a new method to analyze the oxygen isotope composition of coral skeletons, allowing for more accurate temperature reconstructions and insights into biomineralization processes. This breakthrough enables scientists to correct for 'vital effects' that can distort climate data.
A new study reveals the crucial roles of fish and invertebrates in coral reef health, including nutrient boosting and predator protection. However, parasitic snails and destructive crab species also pose a threat to these vital ecosystems.
A new tool for forecasting coral disease has been developed by researchers from the University of Hawai'i, which can predict the risk of two diseases across reefs in the Pacific and Australia. This system can help managers detect early changes in the environment and take timely interventions to protect coral reef ecosystems.
The disease has devastated susceptible coral species, allowing fast-growing organisms like algae to thrive. This shift in ecosystem balance poses long-term threats to marine biodiversity and coastal communities, with potential benefits including reduced competition for herbivores.
The study found that elevated nutrient levels impacted reef growth, leading to the establishment of slower-growing and more sediment-tolerant coral communities in deeper water. This provides evidence on early Holocene water quality and demonstrates the capacity of the reef to grow under conditions typically considered unsuitable.
A team of researchers has identified coral as the oldest bioluminescent organism, with a history spanning over 540 million years. This discovery sheds new light on the evolution of organisms and their interactions with other species during the Cambrian era.
A recent study by the Smithsonian has pushed back the earliest dated origin of bioluminescence in animals by nearly 300 million years, dating it to around 540 million years ago in marine invertebrates called octocorals. The ability to produce light is involved in various behaviors such as camouflage, courtship, and hunting.
A new study by Stanford researchers explores the effects of different watershed interventions on coral health, finding that regional-scale approaches yield better results. The research identifies key areas for restoration, protection, and sustainable agriculture to support both ecosystem and societal benefits.
Researchers at Oxford University have discovered a network of ocean currents that scatter coral larvae between remote islands in the Seychelles. This 'coral superhighway' suggests that centrally located reefs may play a crucial role in linking distant islands, supporting regional reef resilience.
Sea cucumbers, known as the 'janitors' of the ocean, have been found to be a missing component in maintaining healthy coral reefs. Their removal due to overfishing has led to an increase in coral disease and a decline in biodiversity.