Articles tagged with Reef Building Corals
Research finds that controlled Crown-of-thorns starfish populations can support coral diversity by preventing dominant species from monopolizing reef space. This helps increase coral diversity. COTS feeding on fast-growing corals like Acropora creates space for slower-growing species like Montipora and Porites to persist.
A team of 12 organizations, backed by a NOAA grant, worked together to collect eggs and sperm, fertilize embryos, and cryopreserve sperm to preserve genetic diversity. The effort resulted in over 1.5 million coral embryos, with 61,000 elkhorn larvae and 47,000 staghorn larvae produced.
A two-year collaboration between Anindilyakwa Land and Sea Rangers and UTS scientists has delivered the first comprehensive scientific baseline for the corals around Groote Archipelago in Australia's Northern Territory. The study found coral cover ranging from 5 to 47 per cent across sites, dominated by hardy massive corals.
Researchers found that populations of small invertebrates thrive near rat-infested islands, where seabirds are scarce. In contrast, fish biomass is higher on reefs without rats, benefiting from nutrient-rich guano deposits.
A new international study reveals that evolutionary success is not fixed and follows no rules when environmental conditions change. Using corals as an example, researchers demonstrated that even seemingly successful life strategies can lose their advantage when environmental conditions shift.
Rising ocean temperatures cause corals to struggle with oxygen uptake due to disrupted ciliary motion. At moderate temperatures, corals accelerate ciliary motion to meet increased oxygen demand, but this compensatory mechanism fails at higher temperatures.
A study calls for increased coral assisted evolution research to help reefs cope with rapidly warming oceans. The international team identified nine research priorities, including expanding large-scale field-based research and long-term funding to understand coral biology.
The Global Coral Tech Transfer Project brings together SECORE International, Australian Institute of Marine Science, and FUNDEMAR to share coral breeding techniques and technologies for large-scale restoration. The partnership aims to create a comprehensive toolbox for boosting reef resilience worldwide.
A recent study found that coral reefs in Moorea are struggling to recover from bleaching events due to the presence of algae encrusting dead coral skeletons. The algae, particularly Lobophora variegata, are stabilizing the dead corals, making it difficult for juvenile corals to establish themselves and rebuild the reef.
Ocean researchers call for broadened species categories and improved protections for coral reefs, as narrow definitions allow for military and economic interference. The researchers' letter aims to inform policymakers to address conservation gaps and ensure reef protection.
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.
By 2100, coral reefs will be slow to recover, less complex, and dominated by fleshy algae as a result of high carbon dioxide changes in ocean chemistry. The study uses unique coral reefs in Papua New Guinea to determine the impact of ocean acidification on coral reefs.
Researchers used X-rays to investigate the impact of ocean acidification on corals' early skeleton development. They found that acidification affects the formation and structure of the coral's skeleton, with significant implications for marine ecosystems.
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.
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.
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.
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.
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.
The Great Barrier Reef has experienced a significant decline in coral cover, with hard coral cover sitting near the long-term average in each region. Climate change-induced heat stress and cyclones have been major contributors to this decline, particularly among corals dominated by the Acropora species.
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...
Research reveals that reef-building corals use unique survival strategies, such as prioritizing protection of vital centers and 'cavity-like' erosion, to cope with ocean acidification. In contrast, other species exhibit characteristics similar to human osteoporosis, leading to skeletal degradation and reduced quality.
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.
Researchers developed a cutting-edge microscope to study coral photosynthesis and health in their natural habitat. The BUMP imaging system provides unprecedented insights into coral reefs, advancing efforts to understand coral bleaching.
Researchers have discovered a synthetic peptide that attracts Crown-of-Thorns Starfish at low concentrations and with no toxicity, offering an efficient pest-management solution. This breakthrough may lead to the development of potent attractins to control CoTS outbreaks, protecting coral reefs from devastating damage.
A recent study found that coral reefs are rapidly moving poleward due to ocean warming, but immediate action can still significantly improve their future outlook. The research suggests that reducing greenhouse gas emissions could limit coral loss to around a third, rather than the expected 86%.
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.
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.
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.
A recent assessment has classified almost 1 in 3 Atlantic reef-building coral species as Critically Endangered due to the combined effects of climate change and other environmental factors. This increased threat level highlights the urgent need for conservation efforts to protect these vital ecosystems.
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.
A new study by University of Texas at Arlington researchers found that living with symbiotic algae weakens the immune system of jellyfish, making them more vulnerable to infections. This finding has important implications for coral reef conservation and human disease prevention.
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.
Using 3D models, researchers tracked the response of 1,832 coral colonies to two moderate-strength bleaching events off Maui. They found that some corals showed signs of acclimatization, surviving both bleaching events and potentially informing approaches to coral reef conservation.
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.
A team of scientists suggests that coral atoll islands can adapt to sea level rise through local ecological restoration. Restoring the natural process of island growth could significantly improve the health of surrounding coral reef habitats. Funding for restoration work could empower communities to take back ownership of their futures.
Scientists measured coral calcification rates off Hawaiian Islands at depths of 230-360 feet, finding the lowest rates ever recorded for healthy corals. This is due to the efficient use of calcification by corals like Leptoseris spp., which form thin horizontal skeletons to maximize area in low-light zones.
A new study using CRISPR/Cas9 technology has identified a critical gene, SLC4γ, required for young coral colonies to build their skeletons. This gene is unique to stony corals and may have evolved to support skeleton formation.
Researchers discovered fragments of RNA viruses embedded in coral partners' genomes, dating back 160 million years. The discovery provides insights into how corals fight off viral infections and may hold the key to understanding the ecological impact of viruses on reef health.
Coral cells use a molecule called LePin to mark friendly algae for ingestion, a mutually beneficial relationship that helps corals survive. This discovery could inform strategies to prevent coral bleaching and promote coral resilience.
Researchers found high levels of coral pathogens in fish that graze on algae and detritus, while those that eat coral had beneficial bacteria in their feces. These findings suggest that corallivore feces could act as a 'coral probiotic,' potentially benefiting coral reefs.
A recent study found that ocean warming triggers dinoRNAV infections in coral colonies, intensified in unhealthy colonies. This is the first empirical evidence of reef-wide dynamics of viruses infecting coral symbionts during heat waves.
Researchers applied machine learning tools to study how climate impacts connectivity and biodiversity in the Pacific Ocean's Coral Triangle. They found that climate dynamics have contributed to biodiversity due to variability introduced by El Niño and La Niña events.
New research simulates climate warming and ocean acidification in the Gulf of Mexico and Caribbean, finding that high emissions could lead to critically warm temperatures as early as 2050. Reducing emissions may delay this onset, giving coral conservation programs more time to adapt.
Researchers at UTA analyzed how seven reef-building coral species in the Caribbean respond to white plague disease, identifying three consistent patterns of gene expression and adaptation. The study provides a novel framework for understanding broad coral disease resistance traits and their relationship to immune responses.
Researchers at the University of Exeter found that coral reef restoration projects can lead to a healthy and functioning ecosystem through the soundscape, with increased fish sounds recorded on restored reefs. The study used acoustic recordings from 2018-2019 as part of the monitoring program for the Mars Coral Reef Restoration Project.
Researchers found that most coralline algae are negatively impacted by ocean acidification, with decreases in abundance and calcification rates. However, some species, like those in the family Mesophyllumaceae, appear to be more resilient to ocean acidification.
A new study published in Coral Reefs confirms that soft corals Plexaura kükenthali and Plexaura homomalla are two separate species. The research found significant differences in morphology, genetics, reproduction, and symbiotic relationships between the two species.
Research reveals that genetic differences within microscopic algae living inside corals correspond to the coral species they inhabit, suggesting a coevolutionary relationship. This partnership optimization may hold key insights into improving conservation efforts for critically endangered coral species.
Researchers discovered four species of 'serpent coral' with distinct ecological differences, including varying depths and physiological traits. This hidden diversity has implications for reef conservation, highlighting the need for a holistic approach to protect vulnerable ecosystems.
A recent study revealed that robust reef-building corals possess a unique capacity to generate an essential amino acid, which may make them less susceptible to global warming-induced coral bleaching. This advantage allows robust corals to repair tissue and grow new tissue more efficiently than complex corals.
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 reveals that heat-tolerant corals can pass on their tolerance genes to their offspring, potentially helping reefs adapt to global warming. The research found that coral larvae from hotter regions were more likely to survive in warmer conditions than those from cooler regions.
A recent survey of Caribbean reefs found that overfishing removes the predators of sponges, resulting in a greater than threefold increase in coral overgrowth by sponges. This is particularly concerning for corals already threatened by warming seawater temperatures and diseases.
A team of biologists at the University of Texas at Austin has created a nearly complete collection of genes for a species of reef-building coral, revealing approximately 11,000 different genes. This genetic database will enable researchers to study natural variations in corals and their responses to stress, facilitating an explosion in...
A new study describes a method for reattaching large sponges to coral reefs, with 62.5% of sponges surviving at least 2.3-3 years. The technique uses sponge holders and can be applied to other large sponge species removed by human activities or storm events.
A third of reef-building corals are threatened with extinction, according to a comprehensive global assessment. Climate change and human activities such as destructive fishing and pollution are leading causes of coral bleaching and disease.
The Bird's Head Seascape in Indonesia's Papua province is the Earth's most diverse marine ecosystem, with over 1,200 fish species and 600 coral species. Threats from fishing, deforestation, and mining require immediate protection to preserve this unique biodiversity.
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.