Marine scientists are investigating the world's coral reefs to assess biodiversity, identify species, and predict reef collapse. The CReefs project aims to answer key questions about reef dynamics, species survival, and conservation strategies.
Researchers found that direct tsunami damage was mainly restricted to unconsolidated coral substrates, while chronic human misuse had a greater impact on reefs. Healthy reefs did not reduce tsunami-induced land damage, contrary to previous assumptions.
A two-week survey of over 600 kilometers of Aceh's southwest coast will examine the damage to coral reefs caused by the December 2004 earthquake and tsunami. The survey aims to understand the extent of the damage and provide insight into the natural recovery process.
Researchers will explore the Oculina Bank's deepwater coral reefs, which support dense and diverse populations of fish species and are critical breeding grounds for commercially important populations. The team aims to verify a newly produced high-resolution sonar map and assess the extent of the reefs to inform protection efforts.
Researchers discovered that sponges are the most important inhabitants of underwater caves on coral reefs, filling over 60% of cavities. They filter massive quantities of planktonic particles, facilitating growth and conversion of organic to inorganic nutrients.
A team of scientists found that coral populations were healthy until the 1980s when they were killed by disease and high sea temperatures. Addressing global environmental issues like climate change is crucial for saving coral reefs.
Research found that coral and rock reefs offshore played a key role in shaping the severity of tsunami inundation. Healthy coral reefs in the Maldives islands may have contributed to their narrow escape from destruction.
Coral reef ecosystems in Hawaii and Florida are facing ecological degradation due to pollution, overfishing, disease, and climate change. Researchers recommend managing coral reefs as whole ecosystems, reducing terrestrial runoff and investing in infrastructure to prevent further decline.
A new species of coral, Christmas Tree Coral (Antipathes dendrochristos), has been discovered in deep waters off southern California. The coral grows up to two meters tall and was first noticed during dives for rockfish surveys.
Researchers study the impact of hurricanes on coral reefs in South Florida, finding a temporary removal of invasive seaweed. However, experts caution that without addressing nutrient pollution and its root causes, reefs will remain vulnerable to similar problems.
A new study contradicts previous predictions that coral reefs will suffer large declines by 2100 due to ocean warming. Instead, the research finds that coral reef calcification rates may increase by up to 35% by 2100, potentially exceeding pre-industrial levels.
A new internet-based library for coral reefs has been created by NASA, providing a comprehensive world data resource on coral reefs and adjacent land areas. The library will help improve local assessments of reef resources around the world and provide access to reliable global satellite datasets for mapping coral reefs.
Research identifies seven ecological ratchets that contribute to coral reef loss, including decreased reproductive success and disproportionate predator survival. Organizations should focus on preventing degradation rather than restoration, with local management of resources being a key strategy.
Macroalgae, particularly Halimeda opuntia, triggers a virulent white plague type II disease in corals. The alga is also found to be a reservoir for the causative agent Aurantimonas coralicida.
A new project led by Newcastle University aims to examine the ecosystem consequences of bleaching on coral reefs. The research team will analyze changes in reef fish assemblages over five to 15 year time scales at sites in the Western Indian Ocean and Australia.
A recent study reveals that Caribbean reefs have suffered an alarming 80% loss of coral since 1980 due to various disturbances. However, team members have identified signs of new coral growth in some areas, including Jamaica, suggesting a potential path towards recovery.
A recent study using genetic data reveals that individual coral reefs within the Great Barrier Reef are vulnerable to global warming due to limited dispersal of corals. In contrast, reefs at Lord Howe Island have low genetic diversity and appear disconnected from the Great Barrier Reef.
Scientists warn that coral reefs are facing a 'crisis' due to human-caused climate change, threatening biodiversity and economic benefits. Rising CO2 levels and warmer waters cause coral bleaching and ocean acidification, devastating reef ecosystems.
Scientists have long debated the causes of coral reef decline, but new research suggests pollution from land-based sources is a major culprit. A study in the Bahamas found that nutrient levels, particularly nitrogen, play a critical role in seaweed spread and destruction of coral reefs.
Researchers are working on a method to accurately estimate coral reef health from sensors on airplanes and satellites. By analyzing light reflectance from corals, scientists can detect early signs of disease and stress, providing valuable insights into marine ecosystem health.
Field experiments on Mexican reefs show that modest nutrient pollution can increase coral mortality by facilitating disease spread. Further steps should be taken to reduce agricultural runoff, sewage pollution, and deforestation to protect coral reef health.
Researchers will develop mathematical models to better understand coral bleaching and predict future changes. Localized warming of the world's oceans is causing thermal stress on coral reefs, leading to mass bleaching and ecosystem decline.
Scientists used an autonomous underwater vehicle to map two deepwater coral reefs, discovering well-developed reefs with nearly 100% living coral cover. The study provides new insights into the structure and composition of deeper coral reefs, which are essential for protecting commercial fisheries.
Research by West and Salm reveals that factors such as local upwellings of cold water and diverse coral populations can protect coral reefs from bleaching. Additionally, corals emerging at low tides may be more tolerant of heat stress, with examples seen in Palau's Rock Islands.
Researchers have discovered that coral layers in the Atlantic Ocean hold a key to understanding the region's climate dynamics. By analyzing calcium carbonate skeletons, Dr. Lisa Greer and her team found a periodic pattern of oxygen isotope composition with peaks every 12-15 years, mirroring sea surface temperature data.
The study found that coral reef fish deliberately choose mangrove forests and seagrass fields as nursery grounds, providing shelter from predatory fish and a feeding place. Without these habitats, common and economically important coral fish species will not survive.
A new study reveals that coral reef biodiversity hotspots are not driven by local endemic species, but rather by the overlap of globally dispersed species. Conservation efforts should target both high and low biodiversity regions.
Researchers used coral reefs to study the impact of hurricanes on ocean health and climate patterns. By comparing high- and low-frequency hurricane areas, they established a model for analyzing older fossil reefs.
A UGA research team has identified a common bacterium as the cause of white pox disease, killing over 98% of elkhorn coral on some reefs near Key West. The disease is highly contagious and spreads rapidly between reefs, highlighting the impact of environmental changes on marine ecosystems.
Researchers at Newcastle University found that catastrophic damage to the 800-year-old coral reefs occurred during exceptionally warm weather in 1998. The damage is expected to take over 100 years to rectify, according to Dr. Peter Mumby. The study highlights the devastating impact of global warming on these unique ecosystems.
Researchers analyzed ancient coral cores to study climate patterns and found that El Niño was weaker during ice ages, while warm periods saw stronger events. The findings suggest global warming may be responsible for recent intense El Niño events, but more research is needed.
Researchers have discovered a chemical in sea urchins that appears to attract and repel starfish, which are devasting coral reefs at an alarming rate. The finding could provide a new method for controlling the starfish population and saving these valuable ecosystems.
The 9th International Coral Reef Symposium in Bali, Indonesia brings together experts to discuss the state of global coral reefs and potential solutions to address mass coral bleaching and die-offs. The conference highlights new insights into mystery diseases killing coral reefs and breakthroughs in Marine Protected Areas.
Research suggests that rising CO2 levels may cause a 40% reduction in coral reef growth over the next 65 years. The team found no evidence of acclimation to reduced carbonate levels, highlighting the negative impact on coral reefs. This finding has significant implications for the increasing vulnerability of many reefs to other stressors.
Coral reefs are experiencing extensive bleaching due to gradual warming of ocean temperatures. A new study found that heat damage to symbiotic algae is degrading their ability to convert light into utilizable energy. The damaged algae, including the D1 protein, impair photosynthesis and lead to coral expulsion.
A new study by the University of Georgia has found a significant increase in disease incidence among Florida's coral reefs, with 211% more coral species affected. The researchers are stymied in understanding the causes of these devastating losses, which threaten the entire reef ecosystem.
A unique deep-water coral reef with 80% coral cover was discovered in the Gulf of Mexico, challenging conventional thinking that coral reefs are restricted to shallow areas. The reef's unusual flat plate-like form and complex structure provide an ideal habitat for fish.
Coral reefs face an alarming decline due to unknown causes, including coral bleaching and diseases. The loss of these ecosystems could have severe consequences for thousands of species and the global economy.
The Wildlife Conservation Society (WCS) is working to protect coral reefs worldwide through research, conservation, and management programs. WCS has been studying coral reefs in various locations, including the Belize Barrier Reef, where they have made significant progress with fishery replenishment zones and sea urchin control.
A new, potentially serious disease known as White Pox has been discovered on coral reefs near Key West, Florida, causing extensive damage and killing up to 80% of elkhorn coral. The cause of the disease remains unknown, but researchers are studying it to understand its origins and potential impact on the marine ecosystem.