Articles tagged with Ocean Acidification
Researchers have discovered that coral skeletons record subtle changes in pH levels, allowing scientists to study past ocean acidification and its effects on corals. The study provides insight into the impact of climate change on coral reefs and their ecosystem.
A new study shows that at least three Caribbean coral species can survive and grow under severe ocean acidification conditions, despite lower skeleton density. Slow-growing dome-shaped corals outperformed fast-growing branching corals in the experiment.
Shrimp fed on acidic algae exhibited 63% female population, while those on normal pH had 36% females. Algal growth was correlated with CO2 levels in acidic waters, disrupting ocean's ecological balance.
Researchers found that corals and coralline algae, crucial for reef structure, are vulnerable to ocean acidification. The study suggests a significant shift in the composition and function of future reefs if they can survive climate change.
Frank O. Aylward's three-year grant will focus on computational genomics to understand evolutionary trends in prokaryotes and their roles in biogeochemical processes. The research aims to predict how microbes might respond to climate change and ocean acidification.
Scientists warn of ocean acidification's impact on marine life, habitat degradation and biodiversity loss due to rising CO2 levels, threatening ecosystem services and human livelihoods.
A new study forecasts that ocean acidification will reduce the depth at which some shelled organisms can survive to just 83 meters by 2100. This drastic reduction in viable habitat could impact marine food webs significantly and lead to cascading changes across ocean ecosystems.
Researchers warn that acidification of the Southern Ocean will disrupt marine food webs due to a layer of corrosive water forming below the surface. The new shallow horizon would reduce viable pteropod habitat, impacting global fisheries and ocean ecosystems.
A new study published in Global Change Biology reveals that high CO2 concentrations cause significant harm to Atlantic cod larvae, leading to underdeveloped gills and developmental delays. The findings contradict previous assumptions that larvae could adapt to acidic conditions through acclimation of parental generations.
Researchers found that Gulf of Aqaba corals can maintain normal physiological function despite increased temperatures and ocean acidification, producing healthy offspring with similar reproductive output. This study suggests that the Gulf of Aqaba may be a safe haven for corals in the face of climate change.
The study examines how ocean acidification affects iron availability to phytoplankton, a critical nutrient for marine productivity. Researchers aim to develop proxies for quantifying iron availability under present and future ocean acidification conditions.
New research finds that ocean acidification from carbon emissions can alter coho salmon's processing and response to smells, affecting their ability to detect predators and navigate. This study highlights the potential consequences of climate change on salmon populations.
A study focusing on iron in the North Pacific reveals its role in controlling primary productivity, carbon cycle, and marine ecosystem. The distribution of biologically available iron is influenced by factors like mixing, upwelling, and ocean acidification.
Researchers found that virtual reality experiences increased scores on questions about ocean acidification causes and mechanisms by almost 150 percent. Immersive simulations also sparked a lasting sense of connectedness, as users felt a connection with their bodies during the experience.
A new study finds that effective management of local issues can mitigate the detrimental impact of future global environmental changes on marine organisms. The research highlights the importance of adjusting regulation associated with oil spill prevention to maximize resilience in marine ecosystems.
Researchers have discovered that adult Antarctic krill are largely unaffected by ocean acidification levels predicted within the next 100-300 years. The long-term laboratory study found that krill can survive, grow and mature in acidic conditions.
The ocean floor is dissolving rapidly as a result of human activity, with calcite formation being neutralized by acidic CO2. Researchers predict that this process will intensify in the future, leading to long-lasting repercussions on marine ecosystems.
Researchers found sea snail shells were on average a third smaller and showed visible deterioration under predicted future CO2 levels, impacting thickness, density, and structure. The corrosive effects of ocean acidification threaten the survival of calcified animals like shellfish, which are crucial to coastal marine communities.
Scientists have discovered that westerly winds strengthen ocean acidification in Southern Ocean, which is critical for predicting its impact on marine life. The study sheds light on the mechanisms driving this process and provides insights into improving prediction models.
The study assesses 13 ocean-based measures to reduce atmospheric CO2, counteract ocean warming, and mitigate sea-level rise. Ocean-based renewable energy stands out as the most promising solution, with moderate effectiveness for reducing marine pollution and protecting marine habitats.
Researchers identified a cluster of genes responsible for producing the neurotoxin domoic acid in microscopic plants. The knowledge will allow scientists to track the development of bloom toxicity at the genetic level and predict toxin production before it occurs, helping to mitigate harm from algae blooms.
A team of researchers has identified the genetic basis for the production of domoic acid, a potent neurotoxin produced by harmful algal blooms. The study's findings suggest that changes in oceanic conditions, such as phosphate limitation and increased carbon dioxide levels, can trigger toxin production.
A new model predicts that ocean acidification could reduce the US sea scallop population by more than 50% in 30 to 80 years, but proactive climate policy may mitigate this impact. The study combines four major factors, including future climate change scenarios, ocean acidification impacts, fisheries management policies, and fuel costs.
Research in Florida Keys reveals coral growth rate stability but declining skeletal density due to ocean acidification. The study highlights an important distinction between acute mortality events and long-term trends in baseline growth rates.
A team of researchers discovered a new major source of formic acid over the Pacific and Indian oceans by exploiting non-equilibrium conditions. This breakthrough sheds light on current scientific understanding of hydrocarbon degradation in the atmosphere.
Research finds US coastal waters are vulnerable to acidification, affecting marine life like salmon, sharks, and cod. Elevated CO2 levels can cause cognitive problems and disorientation in fish, particularly in colder northern waters. The study highlights the need for sustained ocean observations to track coastal chemistry trends.
Researchers found that seagrass meadows can buffer ocean acidification in short-term periods, particularly during low tide and daylight hours. While limited, this effect could benefit marine life and aquaculture endeavors, but long-term solutions rely on reducing carbon emissions.
A new study reveals that ocean acidification is having a major impact on marine life, with corals and kelp forests being particularly vulnerable. The research suggests that reducing CO2 emissions is crucial to prevent further damage to these ecosystems.
A study of five coralline algae species found that organismal size is the main factor in determining physiological performance under acidic conditions. The findings provide insight into how different species will respond to ocean acidification and its effects on marine ecosystems.
Researchers have found that ocean surface pH has fallen ten times faster than in the past 300 million years, impacting ecosystems, economies, and communities globally. The economic cost of Ocean Acidification is projected to reach over $300 billion annually, highlighting the need for international collaboration and adaptation.
Diatoms, crucial phytoplankton for marine food webs, may become more resilient in an acidified environment due to energy conservation. This study provides context for understanding climate change impacts.
A recent study by researchers from the University of Hawaii at Manoa found that nutrient pollution accelerates ocean acidification's negative impacts on coral reefs. This increases calcification rates, disrupts natural chemical dynamics, and promotes seaweed growth over corals.
Researchers at Bar-Ilan University found that even highly resilient coral reefs can be compromised by local disturbances like excess nutrients and sewage. The study's results suggest that removing these pollutants is crucial to securing the world's most valuable ecosystems.
Researchers found that phytoplankton in Arctic coastal waters are resilient to ocean acidification and temperature changes, with some species producing spores that can survive and initiate blooms. This adaptation allows them to thrive in highly variable conditions, providing a vital ecosystem service for Arctic food webs.
Researchers studied ocean acidification's effect on an estuarine seagrass habitat in Puget Sound, finding that CO2 levels reduce the habitat's ability to withstand natural fluctuations. However, high CO2 levels projected by 2100 are locally mitigated by the seagrass habitat.
A new study published in Nature Ecology and Evolution suggests that herring larvae may survive better in a future acidified ocean due to an altered food supply. This unexpected result could have implications for the long-term survival of fish populations.
By 2050, most coral reefs are expected to experience net sediment dissolution, impacting health and biodiversity. Ocean acidification is linked to reduced calcium carbonate saturation, affecting coral growth rates.
A team of scientists found that Emiliania huxleyi adapted rapidly to ocean acidification, with some lineages exhibiting extremely rapid changes in ecological fitness. However, the algae's ability to adapt did not translate to better survival in natural conditions.
A new study identifies the details of how ocean acidification affects coral skeletons, allowing scientists to predict where corals will be more vulnerable. The research found that ocean acidification particularly impedes the thickening process, decreasing the skeletons' density and leaving them more vulnerable to breaking.
Researchers developed a model to explore the effect of ocean acidification on coral skeletal growth, finding that acidification influences skeletal density but not extension. The simulation predicted an average decline of around 12.4% in Porites skeletal density across global reef sites by the end of the 21st century.
A UCI study found that marine plants and seaweeds decrease acidity through photosynthesis, suggesting conservation efforts could preserve shellfish habitats. The research, spanning 1,000 miles of coastline, highlights the importance of marine life in driving local pH conditions.
Research reveals California mussel shells are becoming disordered and less organized due to escalating ocean acidification, impacting their structural integrity. The study suggests this variation may offer the species a glimmer of hope through increased variability in individual traits, potentially aiding natural selection.
Mussel larvae are sensitive to ocean acidification due to their high calcification rate and limited ion regulation capacity. Researchers found that larvae can increase pH and carbonate concentration below the shell to promote calcification, but this is reduced by increasing acidification
Scientists have discovered that foraminifer shells are originally formed as metastable carbonate vaterite and later transform into calcite. This finding resolves discrepancies between natural shell observations and laboratory experiments, with significant implications for climate archives.
A study by the University of Plymouth found that oysters exposed to expected future levels of ocean acidification and warming do not lose their sensory qualities. This has potentially positive implications for global food supply, as seafood represents a significant portion of animal protein intake.
BIOACID research reveals ocean acidification affects ecosystems and services, including climate regulation, food provision, and biodiversity. Reducing carbon emissions by mid-century is crucial to reach Paris climate targets and limit global warming.
A new study reveals that reef fish are less affected by ocean acidification than previously thought. The researchers used a laboratory setting to mimic natural daily changes in water chemistry, which provided fish with a recovery period and reduced their sensitivity to higher carbon dioxide levels.
The study found a 'pH minimum zone' 10 times more acidic than surface waters, posing risks to marine species like oysters and crabs. Oyster decline may hinder the bay's ability to deal with acidity.
Coral skeleton formation occurs within tissue, contrary to previous understanding that particles precipitate from surrounding water. This finding may improve paleoclimate reconstructions and enhance coral resilience research.
Scientists at UC Santa Cruz have made progress understanding and predicting toxic algal blooms, but the trigger for domoic acid production remains a mystery. A new grant will fund research to unravel the interaction between algae and bacteria, which are found in association with toxic blooms.
Scientists at USC and Caltech have accelerated calcite dissolution in seawater, which could neutralize carbon in deep ocean waters. This process, known as buffering, naturally occurs billions of years and can help mitigate atmospheric CO2.
Researchers found unusual coral reefs in the Northwestern Hawaiian Islands, defying expectations of inhospitable conditions. The discovery suggests that factors such as abundant food and unique chemistry may contribute to their existence.
A Florida State University professor's discovery of deep-sea coral reefs in the North-Pacific has sparked hope for vulnerable coral colonies. The research suggests that factors such as high chlorophyll levels and suitable currents may contribute to the reefs' success, but mysteries remain about their presence at these depths.
Researchers found that small 'weedy' species will thrive in high CO2 environments, dominating marine biodiversity. The study suggests that reducing overfishing of intermediate predators could delay biodiversity loss and ecosystem change.
Researchers from Rutgers University show that stony corals use acid-rich proteins to build their skeletons, making them more resistant to climate change. The study reveals a biologically driven process for coral skeleton formation, contradicting the long-held general model.
A three-year survey found highly acidic water throughout the California Current System, with "hotspots" of pH measurements as low as any oceanic surface waters in the world. Researchers identified refuges of more moderate pH environments that could be used to manage ecosystems and mitigate the effects of acidification.
A study has mapped nearly two square kilometers of seafloor around the leeward side of Bonaire, revealing new details about mesophotic reefs. The data can help local conservation efforts by identifying areas worthy of further investigation and providing insights into reef dynamics.
A recent study reveals that cold-water corals can thrive in warmer temperatures, but are harmed by ocean acidification. The research, conducted at GEOMAR Helmholtz Centre for Ocean Research Kiel, found that elevated temperatures can compensate for the negative effects of acidification on coral growth and fitness.
Researchers found that bryozoans quickly dissolved in warmer waters exposed to acidity, changing their chemical composition to build higher levels of magnesium in their skeletons. This predisposes these animals to dissolve in ocean acidification, which is becoming more common due to climate change.
The eastern Arctic Ocean is exhibiting vertical mixing similar to the Atlantic Ocean, leading to record-breaking losses of sea ice in summers. The changes have substantial impacts on the Arctic Ocean system, including enhanced atmosphere-ocean interactions and altered freshwater storage patterns.