Articles tagged with Coral Reefs
A new study reveals that extreme cold temperatures can have a devastating impact on coral reefs, causing widespread death and destruction. The research found that corals depend on symbiotic algae for nutrition, which is inhibited by cold temperatures, leading to a potential net loss of carbon transferred from the algae to the coral.
Researchers from the ARC Centre of Excellence for Coral Reef Studies and the Australian Genome Research Facility have sequenced the genome of the staghorn coral, a major threat to the Great Barrier Reef. The study provides insights into coral biology, including responses to climate change and ocean acidification.
New research reveals ocean acidification will reduce coral reef ecosystem diversity, leading to severe impacts on coral reefs globally. The study shows reduced biodiversity, recruitment, and development of reef ecosystems under acidic conditions.
A recent study analyzed data from almost 2,000 coral reef locations worldwide to determine the link between biodiversity and ecosystem functioning. The research found that biomass production decreases with increasing human density, especially in more diverse ecosystems.
Highly diverse reef fish systems are the most vulnerable to human threats, yet they produce a greater range of goods and services. The study found that these ecosystems do not saturate with additional species, and their biomass production is negatively impacted by increasing human density.
Marine biologists from the University of Miami have created a probabilistic survey approach to count reef fish, increasing efficiency and accuracy. This framework can support long-term sustainability of reef resources globally, informing management decisions for coral reefs in various regions.
A new study provides a new tool to monitor coral reef vital signs, allowing scientists to assess the impacts of climate change and other threats on coral reef health. By measuring biological productivity, researchers can better understand the balance between coral production and consumption rates.
Peter Mumby is recognized for his work on coral reef conservation strategies, influencing conservation policy and contributing to the implementation of marine park protections. His research has provided insight into the consequences of conserving herbivorous fishes, reducing nutrient runoff, and restoring urchin populations.
A new study finds that weed-eating fish like parrotfish and surgeonfish can only keep coral reefs clear of weeds before they take over. Beyond a certain density, the fish no longer control the weeds, allowing the corals to be lost.
Researchers show strong links between South China Sea, West Pacific, and Coral Triangle preserve diversity and resilience of coral reefs. The region's natural resources are closely interconnected, highlighting the need for collective action to protect them.
A recent study reveals that coral reef networks across the Asia-Pacific region play a crucial role in preserving fish and marine resources. The research, led by Dr. Johnathan Kool, found that the Coral Triangle's diversity and resilience rely on connections between reefs in the South China Sea, West Pacific, and Solomon Islands.
A new predictive method developed by marine scientists has found that a third of reef fishes studied across the Indian Ocean are potentially vulnerable to climate change. The 'extinction risk index' provides coral reef managers with insights to better protect and manage coral reefs, showing local and regional commitment improves prospe...
A new study finds that coral reefs are more vulnerable to weakening due to ocean acidification and global warming, especially in developing countries. Effective local management efforts can help maintain coral resilience while carbon emissions are stabilized.
Scientists at Smithsonian Institution and Ocean Science Foundation used genetic analysis to identify 10 distinct species of blennies (Starksia) previously thought to be three. The discovery sheds light on the complexity of Caribbean reef life, with widespread species exhibiting geographically restricted ranges.
An international team found that many crustacean families can detect and avoid reef noise, depending on their lifestyle. The study reveals that larvae of crabs and lobsters are attracted by the noise, while others actively avoid it.
A study by Wildlife Conservation Society and University of California at Santa Cruz found that overfished reef systems have fewer sea urchins, leading to higher coral growth rates and more structure. Reefs with complete fish communities outperform those without predators, which allows coralline algae to thrive.
Climate change exacerbates the effects of El Niño on coral reef fish populations, leading to a near-absence of young fish necessary for adult replenishment. This process allows fish to feed on plankton and escape predators, but may now become an Achilles' heel in changing waters.
Researchers identified coral reefs in the Bahamas that are less stressed by rising sea temperatures, providing a hopeful strategy for conservation. The study suggests that specific geographic locations can better withstand climate change impacts, making them ideal candidates for marine reserves.
A new study led by the University of Miami Rosenstiel School suggests that ocean acidification could compromise coral recruitment, impacting recovery from disturbance. The research reveals a new threat to already struggling Caribbean and Florida reef Elkhorn corals.
Researchers investigate White pox disease, a human strain of Serratia marcescens transmitted to elkhorn corals, which may indicate a new phenomenon of diseases jumping from humans to wildlife. The study aims to understand transmission mechanisms and develop control strategies.
Marine scientists urge urgent action to save coral reefs from climate change, overfishing, and pollution. They propose management advice to empower local communities and control human impacts.
Coral reefs are surprisingly noisy places with fish and invertebrates producing clicks and grunts that provide useful information about the state of the reef. Healthier reefs were found to be louder, with a clear association between overall noise level generated and the amount of living coral.
Coral reefs' immune system is linked to their susceptibility to bleaching and disease, with corals using energy for growth and reproduction affecting immune function. Understanding this connection can help scientists predict vulnerability to stress and develop preventive measures.
Researchers have created the world's first frozen repository for Hawaiian coral, banking cells to preserve species diversity and potentially restore populations. The frozen material can be thawed decades or even centuries later to revive coral reefs threatened by climate change, pollution, and human impact.
A new study found that short exposure to artificial noise makes fish attracted to inappropriate sounds, putting their survival at risk. The researchers used underwater experiments to show that baby reef fish can learn and remember specific sounds, including those made by humans.
Ancient corals consisted of mostly separate sexes and required a brooding period to evolve into spawning hermaphrodites. The evolutionary origins of coral sex are complex, likely related to the challenges of shallow tropical reefs.
A team of researchers has discovered a rare and unique 'elkhorn' coral in the Pacific Ocean, with colonies reaching up to five meters across. Genetic analysis suggests that it may be a variant of the critically endangered Atlantic elkhorn coral, highlighting conservation concerns due to limited data on its population size.
Moreton Bay has shown coral survival and flourishing in about half of the past 7000 years, but human activities have negatively affected corals. The study's findings suggest that improving water quality and regrowing mangroves are essential for making Moreton Bay a suitable 'lifeboat' for corals.
Research suggests that small and isolated reefs are more susceptible to local species extinctions due to variable fish populations. Larger, connected habitats see fewer fluctuations in population sizes, making them more resilient to changes.
A new study published in Marine Ecology Progress Series found that cleaner water improves the resilience of coral reefs to climate change in the Florida Keys. Corals living in cleaner waters with fewer nutrients were shown to be more resistant to warming and bleaching, while those in dirtier water became sick.
Trade in coral and tropical fish is substantial and growing, removing millions of animals a year. The US can leverage its market power to reduce the environmental impact by protecting more species and promoting humane sales.
Researchers have discovered that coral ecosystems facing pressure from human activities and climate change may find survival clues in their fringed areas. These areas are critical for coral evolution, hybridization, and adaptation, highlighting the need to rethink protection strategies.
The European Research Council has awarded a €3 million grant to study corals and global warming. The five-year CoralWarm project aims to create a mathematical model predicting coral reef changes due to temperature and acidity increases.
Researchers studying two isolated Pacific atolls find diverse marine life populations in response to different fishing pressures. At Palmyra, a protected US wildlife refuge, high densities of sharks and large fish are found, while Tabuaeran, inhabited by 2,500 people, hosts lower fish populations due to artisanal fishing.
A new study published in Restoration Ecology reveals that coral transplantation is an effective and affordable solution for reef restoration. The research team transplanted elkhorn coral fragments onto a damaged reef in the British Virgin Islands, achieving significant growth and survival rates over four years.
A new study in the FASEB Journal reveals that different coral species invest varying amounts of resources in immunity and defense, which may explain differences in susceptibility to negative environmental impacts. The research highlights the importance of maintaining favorable environmental conditions on reefs to maximize coral immune ...
Researchers find threespot damselfish kill slow-growing head corals due to habitat needs. Restoring staghorn coral populations can alleviate pressure on other corals and help mitigate the damage.
Threespot damselfish are killing head corals and adding stress to Caribbean coral reefs due to habitat competition. Restoring staghorn coral, their preferred home, can alleviate pressure on other corals. The fish were not overfished, but rather limited by available real estate.
Researchers discovered that coral larvae can detect sound waves to locate suitable habitats, which is essential for their survival. The study highlights the importance of understanding how corals respond to their environment, particularly in light of human noise pollution.
Researchers found that common seaweed species in Pacific and Caribbean Oceans can kill corals using chemical means. The study suggests that the proliferation of seaweeds may prevent natural recovery from happening at all, especially for reefs damaged by human use or overfishing.
Scientists from Oregon State University are trying to address a looming crisis caused by the lionfish invasion in the Caribbean Sea. The invasive species is eating its way through entire ecosystems, reducing small fish populations by up to 79 percent and disrupting delicate ecological balances.
A study on fossil corals found that reef ecosystems persisted through massive environmental changes, including sharply falling sea levels. The research suggests that coral reefs can survive adverse conditions given suitable shallow rocky habitat, and complex ecosystems were maintained during less optimal periods.
The study reveals rapid increases in fish populations inside no-take reserves, improving ecosystem health and resilience. Additionally, the reserve network helps threatened species like dugongs and marine turtles.
Coral reefs face a dire outlook due to rising ocean temperatures, with mass bleaching events predicted under different climate scenarios. Despite this, some habitats like shaded areas may support reef survival, and researchers are studying unique ecosystems in the central equatorial Pacific to better understand reef resilience.
A University of Exeter study shows coral reefs located in marine reserves can recover from the devastating effects of global warming. The research found that reducing fishing levels is a viable way to protect delicate aquatic ecosystems.
A marine sponge species recycles carbon from dissolved organic material, sustaining the diverse ecosystems of coral reefs. This process involves rapid cell turnover and shedding, allowing other reef residents to consume the recycled cells, thereby supporting the reef's complex food web.
A recent study in Hawaii found that tourists and recreation enthusiasts strongly support protecting coral reef ecosystems due to their exceptional beauty. The research suggests that public attitudes toward management are largely driven by the perceived health of coral reefs, with environmental conditions being more important than human...
The partnership will support 36 projects addressing coral reef health, with a focus on climate change, overfishing, and land-based pollution. The initiative aims to improve the resilience of coral reefs for future generations.
Research estimates that coral reefs provide annual services to humans valued at US $172 billion, with a single hectare providing an average of $1.1 million in food and ornamental resources, while also regulating climate and moderating extreme events. Investing in protected areas offers exceptional returns on investment, with a cost-ben...
Researchers propose setting upper limits on CO2 levels, species extinction rates, freshwater use, and other environmental factors to avoid irreversible changes. The proposed thresholds aim to ensure a stable future for humanity, with exceeding these boundaries potentially leading to catastrophic consequences.
The Nature Conservancy will coordinate a project to develop large-scale, in-water coral nurseries and restore reefs along Florida's southern coast and in the U.S. Virgin Islands. The program aims to grow 12,000 corals to enhance coral populations at 34 degraded reefs.
Recent study reveals coral species tend to stay close to home, with high local genetic diversity important for conservation. Marine reserves should prioritize locally sourced coral recruitment to maintain healthy populations.
A new study found that coral recruitment drops sharply after major bleaching events or hurricanes, with some species not recruiting at all. This disruption threatens the survival of larger, more spectacular reef-building corals as climate change intensifies and storms become more frequent.
A study suggests that banning certain types of fishing gear, such as spear guns and fish traps, could aid in the recovery of reefs and fish populations affected by coral bleaching events. The research proposes that temporary bans or selective gear restrictions offer a middle ground for reef managers and fishers, reducing pressure on th...
A new study proposes banning or restricting fishing gear to aid in the recovery of coral reefs and fish populations. The research found that spear guns, fish traps, beach seine nets, and gill nets can be particularly damaging to corals and fish species, leading to accelerated decline and loss of reef resilience.
Dr. Peter Sale, a renowned Canadian-based UN coral reef specialist, received the Pieter Bleeker Award for his major contributions to world knowledge of fish communities, particularly those in coral reefs. He was recognized for his work on reef fish ecology and behavior, shedding light on sustainable management of marine environments.
Researchers analyzed thousands of surveys to find coral reefs dominated by macroalgae globally are less common than assumed, with only 4% of reefs showing significant coverage. The study suggests no recent trend toward coral-algal phase shifts worldwide.
Scientists have shed light on the collapse of coral reefs, revealing their genetic complexity and intricate symbiotic relationship with algae. The delicate communication process between the coral and algae is also being stressed by global change, leading to coral bleaching and collapse.
Researchers found that some corals can adapt to higher temperatures by hosting heat-resistant symbionts, potentially helping them survive global warming. The discovery suggests that with time, many corals may be able to match hotter environments.
A WWF study predicts catastrophic loss of coral reefs in the Coral Triangle region of the Pacific Ocean by end of century, threatening 100 million people's food supply and livelihoods. The report highlights opportunities for prevention through climate action and regional solutions to overfishing and pollution.