Despite grim scientific evidence, coral scientist John Pandolfi believes it's possible to save 60-70% of the world's coral reefs. The key to success lies in reducing local stresses from pollution, runoff, and overfishing, as well as aggressively reducing CO2 emissions.
Researchers found that anemone fish babies can adjust to ocean acidification if their parents are also raised in acidic water. This discovery suggests some species may be more resilient than previously thought, which could help mitigate the impact of CO2 emission reduction.
A new study reveals that Caribbean seaweeds bloom four times faster than their counterparts in the Pacific Ocean, giving them an upper hand over corals. This could lead to reduced coral recovery after damage, posing a significant threat to Caribbean coral reefs.
A groundbreaking study found that marine reserves can restock fish populations in areas open to fishing. The research tracked the dispersal of baby coral trout and stripey snappers from reserve sites, finding that up to 30km away, a significant proportion settled on reefs open to fishing.
Herbivorous fish play a vital role in maintaining the health of coral reefs by limiting algae growth. A diverse supply of these fish provides strong 'insurance' against environmental fluctuations, reducing the risk of regime shifts towards seaweed-dominated reefs.
A new study reveals that coral reefs will survive climate change by altering the mix of coral species as temperatures rise and oceans become more acidic. This shift could have significant implications for ecosystem services like reef tourism and fishing, with potential losses in biodiversity.
New research suggests that some corals and their symbiotic algae have an in-built mechanism to cope with ocean acidification. However, coralline algae and a large class of plankton appear vulnerable to rising acidity, posing concerns for marine life and the oceans' ability to absorb CO2.
A study of 42 co-managed coral reef fisheries found that partnerships between government, conservation groups, and local fishers were successful in meeting the livelihood needs of local communities and protecting fish stocks. The research identified conditions for co-management success, providing vital guidance for conservation groups,...
Researchers found that big fish in coral reefs prefer sheltering under large, flat table corals due to their importance as a source of cover. The team's study suggests that maintaining these structures could be crucial for the reef's resilience to climate change.
Scientists uncover complex fish-coral relationships that have evolved over millions of years, revealing the importance of preserving specific reef types to save coral reefs. The study suggests that protecting the right sorts of reefs is crucial for their survival, and that past mass extinctions can inform conservation efforts.
High CO2 levels in ocean water disrupt fish's central nervous system, impairing hearing, smell, turning, and predator evasion. Fish with high oxygen consumption are likely to be most affected.
Recent experiments show that corals with a single type of zooxanthellae can have varying thermal tolerance, with some coping well to higher temperatures while others suffer severe bleaching. This finding challenges the previous assumption that corals associating with the same type of zooxanthellae are physiologically similar.
Researchers discovered that some tropical fish can adjust to higher sea temperatures by transmitting information between generations. This allows them to cope with elevated water temperatures, but may have penalties such as smaller offspring and reduced reproduction rates.
Researchers have developed a method to diagnose coral diseases using quantitative-PCR technology, which can detect pathogens at low levels. This will help control the impact of disease on coral reefs affected by rapid coastal development, declining water quality, and climate change.
A team of Australian scientists has made a groundbreaking discovery about the mechanism behind coral bleaching, a devastating event caused by rising water temperatures. Corals are able to respond to stress by killing off some cells while strengthening others in an attempt to recover after the hot water has moved on.
Climate change is expected to force sea creatures to migrate several hundred kilometres to find suitable habitats, driven by rising water temperatures and seasonal changes. This poses significant challenges for marine biodiversity hotspots and fisheries management.
A new study provides a predictive sequence of events leading to coral reef collapse and identifies key sustainability targets for managing coral reefs. Researchers found that well-protected areas typically have 1000-1500 kilos of reef fish per hectare, and regulations restricting gear or species can help maintain biomass.
A recent study confirms shark populations are in trouble worldwide, with significant declines observed on the Great Barrier Reef. The research used innovative methods to estimate population growth rates, finding that sharks are declining rapidly due to fishing.
Dr Nick Graham, a young researcher at James Cook University, has won the Scopus Young Researcher of the Year Award for his work on predicting fish populations in coral reefs. His research uses satellite data to study the architecture of coral reefs from space, providing valuable insights into how degraded reefs can recover.
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.
Researchers found that fish exposed to speargun fishing are wary and keep their distance, fleeing earlier than those in protected zones. In some cases, the flight distance increased by 2.6 meters, putting them beyond spear range.
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.
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.
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.
Scientists urge increased focus and better management for reefs south of the Great Barrier Reef and WA tropical coral zone, critical refuges for northern tropical marine life. The Coffs Harbour Declaration highlights seven priorities to improve subtropical marine environment management.
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.
Leading international scientists propose a new approach to marine tenure to reverse the 'tragedy of the commons' and restore fish stocks. A successful experiment in Chile shows that co-operative models for fishery management can improve sustainability.
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.
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.
Researchers warn that rising CO2 levels could dramatically change the behavior of baby fish, making them more susceptible to predators and decreasing their chances of survival. This shift is expected to have serious implications for the sustainability of fish populations, threatening food security as a result.
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.
Scientists warn of ocean acidification, a threat to marine ecosystems and biodiversity. The 'evil twin' of global warming is causing the oceans to become increasingly acidic, potentially leading to mass extinctions.
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.
A recent study found that successful marine reserves had a positive impact on fish stocks, with human population pressure being a critical factor. Local involvement in research and management, as well as social, political, and economic factors, were also key to making reserves successful.
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.
Researchers say nations alone can't resolve global challenges like climate change, citing examples of ozone depletion and antibiotic resistance. They propose a new order of cooperative institutions to enforce compliance and address common threats.
A new scientific discussion paper highlights the profound impact of human activity on the world's oceans, with carbon emissions affecting marine biological processes and threatening food security. The study warns that rates of physical change in the oceans are unprecedented and may lead to major shifts in marine ecosystems.
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 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.
A team of scientists has proposed six 'rules of thumb' to help save the world's imperiled coral reefs. The key to saving threatened coral ecosystems is maintaining links between reefs, allowing larvae to flow between them and re-stock depleted areas.
Coral reefs in Australia's Great Barrier Reef Marine Park have recovered rapidly from a devastating bleaching event in 2006, thanks to an exceptional combination of ecological mechanisms. Asexual reproduction played a vital role in the recovery process.
Researchers conclude that mangrove and tree barriers erected to protect against tsunami are not effective and may even increase the risk of damage. Instead, experts recommend installing early warning systems, educating populations on tsunami signs, and implementing evacuation plans.
A new study reveals that acidification of oceans from human CO2 emissions can worsen coral bleaching and death. Key findings indicate that coralline algae may be lost in near future due to increased CO2 levels. On the positive side, some coral species show ability to cope with ocean acidification by enhancing photosynthesis.
New research suggests rare corals can cross-breed with other species to increase genetic diversity and adapt to changing conditions. This finding has raised hopes for the ability of corals to withstand the impacts of climate change.
Researchers find that when fish can't eat seaweed due to sediment, algae mats form, preventing corals from re-establishing themselves. Climate change and sea level rise further threaten coral reefs' survival.
Research found that subordinate fish go on a diet to avoid provoking fights, maintaining social hierarchy in coral reef groups. This discovery challenges traditional views on dominant individuals retaining their position through size and intimidation.