Articles tagged with Marine Life
Researchers used AI to analyze global datasets and environmental conditions, discovering a complex interplay of factors influencing seafloor bioturbation and ecosystem services. This study expands knowledge on ocean health and climate change responses.
A Texas A&M-led team has created the first global map of seafloor biodiversity activity, uncovering key environmental factors that drive burrowing animals' activities and ecosystem health. The research highlights the critical role these animals play in regulating carbon, nutrient, and biogeochemical cycles.
A study suggests that reducing plastic pollution by 5% per year can stabilize the level of microplastics in surface oceans. However, even a 20% reduction may not significantly impact existing microplastics levels, which will persist in oceans beyond 2100.
A recent study from Ohio State University reveals that low-nutrient environments alter viral infection of cells, resulting in commonalities among virocells. The findings suggest the environment plays a crucial role in shaping microbial interactions, with implications for large-scale modeling of ocean and soil microbial systems.
Research reveals phages infecting SAR11 bacteria, causing massive cell death and creation of 'zombie' cells. These cells, lacking ribosomes, are thought to be recycled for new phage DNA production, highlighting the importance of microbial interactions in the ocean.
A new study has confirmed that killer whales take only one breath between dives, providing insights into their unique physiological habits. The researchers used drone footage and biological data from tags to gather information on the animals' habits, revealing that residents spend most of their time making shallow dives.
Researchers have identified heavily used shipping lanes that pass through crucial whale shark feeding grounds, posing a threat to this endangered species. Targeted measures, such as reducing ship speed, could help minimize the impact on the shipping industry while protecting whale sharks.
Researchers discovered that two species of marine bacteria work together to produce vitamin B12, essential for metabolism and survival of many marine organisms. The bacteria release building blocks into the water, which are then combined to form the vitamin through a complex process involving viral infection.
Researchers found that cells adapt by packing into unusual geometrical shapes, known as scutoids, in response to pressure changes. This discovery sheds light on how cells cope with physical environment changes and has potential implications for understanding healthy cell adaptation.
FathomVerse combines real underwater images, interactive gameplay, and AI training to improve ocean research. The game engages players in labeling images for machine learning models, contributing to a broader audience in ocean exploration.
A new study suggests that incorporating seafood rich in umami, such as fish and shellfish, into vegetable dishes can boost their flavor and make them more appealing. The research uses a mathematical equation to calculate the umami content of various seafood options, finding that even small amounts can greatly enhance the taste.
Disposable vape sales quadrupled in the UK between 2022 and 2023, contributing to e-waste accumulation. The technology contains valuable resources like lithium, but recycling is often difficult due to lack of clear instructions. Experts call for urgent reform of disposable electronics practices to protect the environment.
Researchers have identified cocaine as a contaminant of concern in the Bay of Santos' water, sediments, and marine organisms. The drug causes toxicological effects in animals such as mussels, oysters, and fish, with severe bioaccumulation and ecotoxicological risks.
A recent study by the Smithsonian has pushed back the earliest dated origin of bioluminescence in animals by nearly 300 million years, dating it to around 540 million years ago in marine invertebrates called octocorals. The ability to produce light is involved in various behaviors such as camouflage, courtship, and hunting.
Research found that male spear squid's mating tactic is determined by their birthdate, with earlier-born squids adopting a 'consort' strategy and later-born squids using 'sneaking' tactics. This study suggests that environmental conditions at birth may impact growth trajectory and reproductive success.
A study by UBC researchers found that only 40% of coho salmon remained alive three kilometers from release, and fewer than one-quarter reached the Lions Gate Bridge 20 kilometers away. The 'mortality hot-spot' was confirmed in Burrard Inlet, but the research also suggests ways to increase survival rates through changing release locations.
In a groundbreaking study, scientists found that juvenile great white sharks prefer warm and shallow waters near the shore, often within 1 km of land. This behavior may help them evade predators and optimize growth efficiency in these nurseries.
High levels of plastic pollution can kill the embryos of a wide range of ocean animals, preventing healthy development in all seven tested species. This study highlights the
Researchers have analyzed over 44,000 high seas survey gear hauls across the North Pacific to create detailed maps showing salmon species' ocean habitats and temperature tolerances. The study highlights varying cold-water tolerance among salmon species, with implications for climate change adaptation.
Scientists used lithium isotope data to show that continental clay export promoted organic carbon burial and thus atmospheric oxygenation during the Cambrian period. This finding challenges traditional views on marine oxygen levels during this time, suggesting a complex interplay between oceanic and atmospheric processes.
A team of Australian scientists has developed a step-by-step guide to ageing octopus, using growth rings on beaks and stylets to validate age. This tool helps estimate growth rates, reproduction, and maturity, ensuring sustainable fisheries and conservation.
A new analysis method reveals that climate change affects not only survival, metabolism, and skeleton health but also physiology, reproduction, behavior, and physical development in fish and invertebrates. The study suggests up to 100% of biological processes may be affected, with mitigation efforts potentially reducing impacts.
A study by researchers from the University of Gothenburg found that shy sea anemones can outlast bold ones during extreme heatwaves due to their slower metabolism. This survival strategy may be beneficial for other cold-blooded marine species exposed to rapid temperature changes.
A new study tracked 52 leatherback sea turtles off the coasts of Cape Cod and Beaufort, North Carolina, revealing significant foraging activities in the Mid-Atlantic Bight and Southern New England. The research highlights the urgent need for conservation efforts to mitigate risks such as incidental capture by fisheries and vessel strikes.
Researchers at the University of British Columbia have discovered a new population of killer whales in the Northeastern Pacific, with distinct physical characteristics and a diet that includes marine mammals and sea turtles. The orcas were identified through shark-bitten scars and observations by fishermen and birding enthusiasts.
A study found over 40% of loggerhead sea turtles in the Mediterranean contained macroplastics, including a Halloween toy. Researchers say these turtles could be used as 'bioindicator' species to understand the impact of plastic pollution.
Researchers found that fluorescent proteins function as potent antioxidants, safeguarding cells from oxidative damage in neon-colored sea anemones. The study also revealed a direct genetic link between fluorescence and color variation in these creatures.
Researchers at Uppsala University have discovered eight new deep-sea species of marine sponges in the Balearic Islands, increasing the ecological importance of the region. The study reveals a strong case for the inclusion of underwater mountains and caves within the Natura 2000 Network, emphasizing the need for conservation efforts.
Scientists have discovered a new species of deep-sea worm, Pectinereis strickrotti, living near a methane seep off the Pacific coast of Costa Rica. The worm has an elongated body with feathery appendages and was named after Woods Hole Oceanographic Institution's Bruce Strickrott.
A group of marine biologists challenge the notion of a stable white shark population shifting eastwards along South Africa's coastline. They argue that data cannot support population stability or redistribution claims, citing issues with dataset presentation and the onset of declines predating orca appearances.
Researchers at Cornell University have devised a novel way to determine ocean temperatures of distant worlds based on the thickness of their ice shells. This technique can be used to enhance NASA's mission findings about Europa and Enceladus, two Jovian and Saturnian moons that could potentially support life.
A new analysis of 14,000 fish surveys in 216 MPAs across 43 countries reveals that no-take MPAs are effective in restoring fish populations but come at a cost to coastal communities. The study suggests multiple-use MPAs, where fishing is regulated, can be a more equitable alternative.
A new study found that striped marlin rapidly change color as they hunt in groups, potentially serving as a reliable signal of an individual's motivation to attack. This discovery suggests that marlins have more complicated communication channels than previously thought.
Sea cucumbers, known as the 'janitors' of the ocean, have been found to be a missing component in maintaining healthy coral reefs. Their removal due to overfishing has led to an increase in coral disease and a decline in biodiversity.
A new study from the Stowers Institute for Medical Research has discovered that sea lampreys and humans share an remarkably similar molecular and genetic toolkit in their hindbrain development. The research found a crucial molecular cue, retinoic acid, to be involved in both species' brain stem formation.
A new framework for marine biodiversity protection in US waters has been developed by an international team, including NSU researcher Tracey Sutton. The framework identifies significant gaps in current protection measures, reflecting the need for a more comprehensive approach to safeguarding ocean life.
Researchers found stable tuna mercury concentrations worldwide from 1971 to 2022, except for a slight increase in the northwestern Pacific Ocean. The team suggests upward mixing of 'legacy' mercury as a possible cause, which could take up to 25 years to influence oceanic levels.
Two prehistoric shark species, previously named the same, were given new names based on their discovery location. A wealth of fossil fishes discovered during the renaming process had been stored at an Ohio State museum for years but were largely forgotten.
Researchers have made groundbreaking discoveries about the reproduction of giant Antarctic sea spiders, a phenomenon known as polar gigantism. The study found that these creatures do not carry their young like most other species, but instead attach them to rocks for several months before hatching.
Researchers created a soft robot mimicking 500-million-year-old pleurocystitids, suggesting a sweeping motion helped them glide through the ocean floor. The design also indicates longer stems enabled faster movement without increased energy expenditure.
The Cabrières Biota, a new fossil site in southern France, has revealed unprecedented information on polar ecosystems during the Ordovician period. The discovery of over 400 fossils provides insights into the composition of southernmost ecosystems and serves as a refuge for species that escaped high temperatures.
A new study reveals tiny plankton (0.02mm) make up majority of ocean plankton, playing critical role in ecosystem health and oxygen production. The research emphasizes the need to take these tiny organisms seriously and incorporate them into global ocean policy.
A Brazilian researcher led a team that described a rare medusa, Santjordia pagesi, discovered at a depth of 812 meters in the Sumisu Caldera. The species has a unique bright red stomach and may possess an arsenal of venoms unlike those discovered to date.
Researchers have identified nanoplastics in ocean water off the coasts of China, South Korea, and the US, with surprising diversity in shape and chemical composition. The tiny plastic particles, originating from consumer products, were found to be more toxic than larger plastic particles due to their small size.
Researchers observed that clown anemonefish colonies display the most aggressive behavior towards fish with three bars like themselves. The fish also recognize different anemonefish species based on the number of vertical white bars, leading to strict social hierarchies and upholding dominance.
Wildlife filmmaker Carlos Gauna and UC Riverside student Phillip Sternes observed a 5-foot-long pure-white shark pup shedding its embryonic layer. The location off central California's coast is proposed as a potential great white breeding ground, which could help protect endangered species.
Researchers at Oregon State University discovered that marine heat waves trigger earlier reproduction and high mortality in early life stages of Pacific cod. The study found these changes persisted in subsequent years, potentially impacting the future of Gulf of Alaska's Pacific cod population.
A team of researchers tracked the rate at which great hammerhead sharks eat hooked tarpon in Florida Keys, finding a 15.3% depredation rate. The study urges ecological solutions that don't impact either species, as conservation efforts stabilize shark populations and angling becomes more popular.
Researchers discovered a complex network of gene duplications and losses associated with tardigrade extremotolerance, highlighting the intricate genetic landscape driving modern tardigrade ecology. The study sheds light on the evolution of anhydrobiosis in tardigrades, revealing two independent transitions from marine to limno-terrestr...
Researchers found Megalodon had an elongated body form more similar to the modern great white shark than previously thought. The study suggests that previous estimates of its length may have been too high, with some fossil vertebrae suggesting a total combined length of 11.1m but estimated total length including head being only 9.2m.
A new study published in Palaeontologia Electronica shows the Megalodon was more slender than earlier studies suggested, changing our understanding of its behavior and impact on ancient ocean life. The revised model suggests a longer digestive canal, potentially leading to less predation pressure on other marine creatures.
A landmark study by National Geographic Pristine Seas finds that bottom trawling releases up to 370 million metric tons of carbon dioxide into the atmosphere annually. The research also reveals high carbon emissions in areas such as East China Sea, Baltic, and North Seas.
A team of researchers led by URI Professor Brennan Phillips successfully demonstrated new technologies for capturing preserved tissue and high-resolution images of deep-sea animals in minutes, preserving them for advanced genomic study. This breakthrough enables faster species discovery and can inform extinction prevention efforts.
A new study suggests that a cross-sectoral approach to marine protection can meet conservation targets at lower costs for all stakeholders involved. The approach minimizes the opportunity cost to each stakeholder simultaneously, resulting in more affordable protection of high seas biodiversity.
Researchers examined thresher shark vertebrae and found unique anatomical modifications supporting extreme body bending during tail-whipping behavior. These findings suggest the vertebral column is fortified along its length, enabling the tail to launch over the head.
A new database of marine microbes has been created, revealing insights into the ocean's diversity and its impact on climate change. The catalog provides unprecedented information on which microbes live where and what they do.
Ocean Networks Canada is establishing a new Antarctic Ocean observatory in partnership with the Spanish National Research Council. This initiative will provide year-round, near real-time data on ocean conditions, advancing scientific understanding of the Southern Ocean and Antarctic Ocean.
Researchers precisely dated some of the oldest fossils of complex multicellular life, tracking a pivotal moment in Earth's history when new lifeforms teemed in the seas. The fossils, including creatures like Aspidella terranovica, showcase early evidence of large-scale multicellular organisms.
Researchers tracked 87 Adélie penguins using electronic tags, revealing how they interact with sea ice during their long-distance migrations. The study highlights the interconnectedness of species in the Southern Ocean and how climate change may impact Adélie penguin populations.
A team of scientists sequenced the full genome of a sea cucumber collected at a hydrothermal vent, revealing expanded gene families involved in DNA repair and iron metabolism. The research provides valuable insights into the unique adaptations of marine animals to survive in extreme environments.