A UBC study identified 294 marine species that will be highly vulnerable to climate change by 2050. These species have limited temperature ranges, restricted geographic ranges, and specific habitat requirements making them more susceptible to climate change.
Scientists have found that queen conch populations in the Caribbean are fragmented into multiple distinct subpopulations, each with limited genetic exchange. This suggests that local management of fisheries is crucial to conserve these treasured marine snails.
Researchers found that microbes associated with native species provide resistance to invasion, while those with invaders break down this resistance and may poison native plants. The study suggests a new way to restore the balance of microbial communities in sediments to reduce the risk of invasive marine species.
A new study suggests that coastal marine ecosystems can be better managed with restoration instead of protection on limited budgets, according to researchers from the University of Queensland. The model compared scenarios of restoration versus protection and found that active marine restoration may be the most cost-effective way over d...
Researchers from California Academy of Sciences propose a new model of island biogeography for marine organisms, describing the surprising ways they fill niches and diversify. The study reveals that fast-dispersing marine species quickly colonize available ocean niches, leaving no chance for adaptation.
Using marine reserves can allow fishermen to catch more of the profitable fish they want while protecting weaker fish that can be caught inadvertently by fishing gear. This approach could also help sustainably manage global fisheries and rebuild depleted species.
A new study published in Frontiers in Marine Science reveals current threats to ocean health, including climate change, marine plastic pollution, and conservation efforts. The research also highlights the importance of integrated coastal zone management and marine protected areas in mitigating these issues.
A record-breaking marine heatwave, lasting 251 days and seven times larger than Tasmania, was driven by a surge of warm water in the East Australian Current. Climate change made this event several times more likely, with temperatures 2.9°C above normal.
Researchers found that half of ships passing through Israel's Mediterranean coast carry damaging ascidians, which can harm marine biodiversity and ecosystem services. Dr. Noa Shenkar recommends regular maintenance to prevent ascidian infestations and emphasizes the importance of monitoring marine vessels for early detection.
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.
A recent study reveals that a third of marine megafauna disappeared around three to two million years ago, leading to a significant reduction in species diversity. The loss of functional entities resulted in an erosion of ecological functions, with 17% of total diversity disappearing and 21% changing.
A patent study has identified chemically modified marine-derived microtubule-targeting agents with significant antiproliferative potency against a wide range of cancers. These drugs offer potential for overcoming multidrug resistance and improving cancer therapy outcomes.
A new study reveals that marine invertebrate predators have increased in size over the past 500 million years, while their prey has remained relatively constant. The 'escalation hypothesis' is supported by the findings, which show a significant increase in predator-prey size ratio driven by changes in marine ecosystems.
A global study suggests that highly protected marine reserves can slow down the rate of climate change and protect marine ecosystems. These areas can provide critical resilience benefits to rapid climate change, including reducing ocean acidification and supporting productive fisheries.
Marine reserves can help protect wildlife, support fisheries, and promote carbon storage to slow climate change impacts. The study evaluates existing research on the benefits of large, long-established marine protected areas in reducing the effects of ocean acidification, sea-level rise, and other climate change drivers.
Researchers found two groups of flounders became distinct species at an extraordinary pace of approximately 2400 generations, setting a new record for the fastest event of speciation. The study's findings have important implications for our understanding of ecological speciation and its role in marine biodiversity.
A new study reveals that red sea rabbitfish brought live marine animals with them when they invaded the mediterranean, expanding biodiversity and threatening native ecosystems. The research highlights the role of fish in spreading invasive species through 'ichthyochory,' a previously unknown mechanism.
Scientists have measured dispersal distances of two coral reef fish species, revealing that juvenile clownfish stay relatively close to home (10-15 km), while butterflyfish disperse further (43-64 km). The study informs optimal sizing and spacing of marine reserves, with implications for conservation and fisheries management.
A diverse group of experts is advocating for a marine code of conduct to address human rights violations and promote socially responsible decision-making in ocean conservation. The recommended principles include indigenous rights, food security, inclusivity, and transparency.
A team of scientists has found that bacteria living in marine sponges can produce toxic compounds nearly identical to man-made fire retardants, also known as polybrominated diphenyl ethers (PBDEs). The discovery could help understand the human health implications of these additives.
A Scripps Institution of Oceanography research team discovered bacteria in marine sponges produce toxic compounds nearly identical to man-made fire retardants. The study uses genome mining and environmental DNA sequencing to identify specific genes and enzymes involved in the production of these compounds.
Researchers at the University of Miami Rosenstiel School developed a new technique to measure near-surface ocean currents using a specialized video camera. This innovation can help scientists predict the fate of spilled oil and other marine pollutants, improving disaster response and understanding pollutant transport.
A new study calls for a global code of conduct for marine conservation, considering social justice and accountability practices. The code could ensure fair governance and respect for fishers' livelihoods, food sovereignty and dignity.
Researchers found that high CO2 levels boost production at different levels of the food web, but ocean warming causes stress to marine animals, preventing them from efficiently using increased resources. This led to a collapse of the food web. The study suggests that ocean warming will be an overwhelming stressor for marine ecosystems.
A study predicts areas of plastic input and deposition based on global climate change and ocean circulation. Microplastics interact with marine species in various habitats, and changing sea surface temperatures affect precipitation patterns.
A global study found that only 9% of MPAs have adequate staff and funding, hindering their ability to recover fish populations. Despite this, MPAs with sufficient personnel and budget show nearly three times greater increases in fish populations.
New research shows fish can evolve to avoid fishing nets by staying within protected areas, increasing population size. Marine reserves effective in preventing extinction and protecting biodiversity for some species.
A study published in PLOS ONE suggests that marine recovery after the late Permian mass extinction was likely delayed by subsequent biotic crises. The researchers found that extinction rates of marine invertebrates peaked twice during the early Triassic, and ecological diversity increased only after a relaxation of environmental stresses.
Researchers found that mollusk fossils accurately record spatial diversity patterns in marine ecosystems, providing insights into past and present changes. The study suggests that mollusks can be used to understand ecosystem shifts and inform conservation efforts.
A new study identified six 'hot spots of marine biodiversity' severely impacted by climate change and fishing pressures, including the Atlantic, Indian, and Pacific Oceans. Industrial fishing has reduced global fish stocks, with harvest pressure expected to further exacerbate decline in these areas.
A world-first study has used custom-made non-invasive cameras to capture over 535 minutes of rare dolphin activities, including mother-calf interaction and social behaviors. The results provide unprecedented insight into the lives of these marine top predators.
Scientists have discovered that marine bacteria can synthesise dimethylsulfoniopropionate (DMSP), an important nutrient for microorganisms and precursor to the climate-cooling gas dimethyl sulfide (DMS). The production of DMSP by many marine bacteria has significant implications for the global sulfur cycle.
Researchers have found that drone noise does not travel far into the water, posing little threat to marine mammals. The study suggests that UAVs can be used safely in marine environments with proper permits and guidelines.
Researchers developed a model simulating the motion of floating debris, revealing how ocean currents transport and accumulate marine debris. The study found that undrogued drifters accumulate in gyre centers, while anchored drifters take longer to reach the center.
Researchers have isolated and tested a new indole alkaloid from a deep-water marine sponge, demonstrating potent antibacterial activity against MRSA. The compound, dragmacidin G, has shown selectivity towards bacterial cells over mammalian cells, offering potential solutions for treating MRSA infections.
Research in Fiji Islands reveals that small community-based marine protected areas can be susceptible to attacks by crown-of-thorns sea stars, which can devastate coral reefs. Despite the importance of these protected areas, the findings highlight a new threat that may emerge from degraded areas surrounding healthy ecosystems.
A survey of 97 coastal ecosystem experts revealed that climate-driven disturbances are having profound impacts on marine ecosystems, but also instances of resilience. Resilience was marked by striking recoveries in some cases, with areas of remnant habitat and high connectivity being key contributors to its persistence.
Researchers at Stanford University found that large MPAs in the U.S. Palmyra Atoll National Wildlife Refuge effectively protected grey reef sharks, with more sharks inside the reserve and fewer fishing vessels outside. The study suggests that expanded MPAs can have a significant impact on shark populations and ecosystem health.
A study highlights challenges and opportunities of fishery management in China, promoting institutional reform for sustainable marine resource management. The researchers recommend new institutions, secure fishing access, policy consistency, educational programs, and increased public access to scientific data.
A Tel Aviv University study finds that the influx of non-indigenous species through the Suez Canal is causing irreversible damage to Mediterranean marine ecosystems, including the decline of native species and habitats. The researchers call for effective management measures to prevent further degradation and loss of ecosystem services.
A joint study by Chinese and international researchers recommends new institutions for science-based fisheries management, secure fishing access, and policy consistency across provinces. The authors believe that China's 13th Five-Year Plan provides a policy platform for the protection of marine ecosystems and restoration of fisheries.
A new study reveals how Roseobacter bacteria claim heme from algal cells, recycling iron into the marine food web. This process keeps iron near the surface, influencing plankton growth and ocean nutrient cycles.
An international study argues that protecting 20-30% of fishing grounds can help sustain and rebuild unregulated fisheries, benefiting millions of people. Marine reserves can be an effective management tool in highly diverse and overfished areas.
A comprehensive study on Hong Kong's marine biodiversity reveals the territory is home to over 26% of China's recorded marine species, comparable to regions like the Caribbean Sea and East Africa. The research highlights the importance of conserving marine habitats in Hong Kong, with only 2% currently protected.
A new study highlights the urgent need for global action to limit temperature increases to 1.5°C due to its critical role in preserving marine ecosystems and limiting species turnover for the fishing industry. The results show that exceeding this target could lead to a three-fold decline in marine biomass.
Scientists have discovered a new species of coral-reef fish, Tosanoides obama, that lives exclusively within the Papahānaumokuākea Marine National Monument. The fish is special because it is the only known species of coral-reef fish endemic to the Monument.
The new US law aims to reduce harm to marine mammals and improve species protection through stricter fishing regulations. The law, set to come into effect on January 1, 2017, requires countries to comply with the U.S. Marine Mammal Protection Act, impacting global seafood trade and conservation efforts.
Researchers at Stanford University studied a rare marine worm species, discovering that its larvae undergo a prolonged phase with little more than a head. This indicates that many animals in the ocean likely share this trunk-less stage, shedding light on animal development and evolution.
A recent study found significant correlations between East Asian dust events and chlorophyll a concentration in the North Pacific Ocean and Chinese marginal seas. Dust fertilization on marine biological productivity was also observed, with phytoplankton growth related to dust deposition in the Yellow Sea.
Researchers have developed a new passive acoustic monitoring method using autonomous underwater vehicles, gliders, and floats to capture sounds of marine life. The method, which was tested in the US Pacific, has the potential to provide more accurate data on marine mammal density and abundance.
A new study found that toxic marine snow formed by the algae Pseudo-nitzschia can reach significant depths quickly and persist for months. This marine snow can accumulate high levels of domoic acid, a neurotoxin that can cause neurological and gastrointestinal symptoms in humans.
A study published in Oceanography presents a concept for large-scale industrial cultivation of marine microalgae to reduce fossil fuel use and generate nutritious animal feeds. Growing enough algae to meet current global liquid fuel demand would require an area roughly three times the size of Texas.
Researchers have designed a model network of marine reserves to protect spiny lobsters and increase fishing yields in Honduras. The study resolves the 'conserve or catch' conflict by showing that it's possible to balance conservation and economic goals.
A recent study published in Scientific Reports found that dispersal distances rank biological groups by genetic and community levels, supporting neutral theory predictions for marine biological connectivity. Dispersal limitation maintains species coexistence and promotes regional biodiversity.
Researchers discover that certain bacteria can fix nitrogen, a limiting nutrient in the ocean. This breakthrough could lead to more efficient marine ecosystems and potentially even 'fertilize' the surrounding habitat.
Recent studies have shown variable levels of radioactive contamination in fish, but population-level effects have not been observed. The long-term fate of the contamination remains unknown, with further research needed to understand its effects on marine ecosystems.
A study by Stanford scientists warns that the future of Antarctic marine protected areas is under threat due to entrenched positions on Marine Protected Areas (MPAs) and fishing interests. The authors argue that CCAMLR's failure to adopt a system of MPAs could set a negative example for global ocean challenges.
A new study by the University of Southampton uses jellyfish to track marine animals' movements and locations, providing a powerful tool against food fraud. The research can also be used to maintain healthy sustainable fish stocks and ensure consumer confidence in marine eco-labelling.
Researchers found that habitat warming decreases Anomura species diversity in marine environments, while increasing it in freshwater habitats. This suggests a habitat-dependent response to climate change, challenging the universal trend of increased diversity with warming temperatures.
A new study by the University of Exeter and Plymouth Marine Laboratory reveals that coastal-dwelling marine wildlife are more vulnerable to harmful plastic pollution than previously thought. The research found that animals living in waters near densely-populated coastlines are at risk of coming into direct contact with microplastics.