Articles tagged with Marine Life
A University of the Sunshine Coast researcher has documented the world's first recorded and scientifically observed three-way mating between two male and one female leopard sharks. The video provides valuable insights into the species' natural mating behavior and informs conservation strategies.
A new study by Florida Atlantic University reveals that every arm is capable of performing all action types, with front arms mainly used for exploration and back arms supporting movement. Octopuses demonstrated remarkable flexibility, showcasing complex motor control.
The MiningImpact project is investigating the environmental impacts of deep-sea mining on ocean ecosystems. Scientists are studying biodiversity, genetic connectivity, and ecosystem health to develop indicators and threshold values for harm.
A new study finds that sargassum seaweed can significantly slow down sea turtle hatchlings in Florida, increasing their risk of predation and heat exposure. Researchers found that even small amounts of sargassum can impede hatchlings' progress, with leatherbacks taking 54% longer to crawl through light sargassum.
Steve Canty has been appointed as the new director of the Smithsonian's Marine Global Earth Observatory (MarineGEO) network. As part of this role, he aims to expand how MarineGEO collaborates with communities to co-develop solutions for protecting and restoring coastal environments globally.
A team of scientists has estimated that an average cell line acquires and retains roughly 13 percent of its genes every million years through lateral gene transfer. This process enables microbes to adapt to new environments and access essential nutrients. The study provides the first quantitative analysis of gene transfer rates across ...
The Mediterranean Sea is warming at a faster rate than the open ocean, posing significant risks to marine ecosystems. The study highlights the urgent need for action to protect these unique ecosystems, which could collapse or remain functional depending on political decisions made now.
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.
Researchers at OIST identified biological processes that support young clownfish adaptation to climate change and warming seas. Exposing juvenile fish to raised water temperatures showed significant changes in liver and pancreas, reducing insulin secretion and increasing oxidative phosphorylation.
A global review highlights the need for better tools to understand juvenile fish habitats, which are facing increased pressure from various factors. The study recommends incorporating metrics like growth, survival, and contribution rates to assess habitat quality.
A new ASU study identifies the most polluted areas of coastline in West Hawaiʻi and targets for remediation, providing critical data needed to mitigate sewage contamination. The research found that cesspools, septic systems, and coastal urban development are highly predictive of water contamination.
Researchers have identified a previously undocumented class of PFAS in the blubber of killer whales, accumulating in fat-rich blubber. This discovery challenges the long-held assumption that PFAS primarily bind to proteins and accumulate in liver or blood.
A new study has discovered that the microbial signature of tiny planktonic crustaceans, called copepods, reflects ocean currents and environmental gradients more accurately than freely living microbes. This finding suggests that copepod-associated microbes could serve as valuable bioindicators for detecting shifts in marine ecosystems.
The study analyzed the northbound migration of northern fur seals, revealing that they concentrate foraging activity along continental shelf-breaks and near anticyclonic eddies. The findings provide new insights into the seals' response to oceanographic conditions and highlight the importance of long-term monitoring in understanding th...
Researchers at Monterey Bay Aquarium Research Institute used the EyeRIS camera system to track the movements of deep-sea pearl octopuses. The study revealed simplified control mechanisms in their arms, which could inspire the design of octopus-inspired robots.
Researchers have established apple snails as a system to study eye regeneration, which may hold the key for restoring vision due to damage and disease. The team discovered that the snail eye is anatomically similar to humans and can regrow itself, with genes such as pax6 playing a crucial role in development.
A new study reveals that a decline in ocean oxygen levels is disrupting mesopelagic fish populations and ecosystems. The findings suggest that these events could destabilize ecological balances, impair the ocean's role in carbon cycling, and threaten marine biodiversity and food security.
Researchers have discovered a new species of deep-sea limpet, measuring up to 40.5 mm in shell length, found 5,922 meters beneath the northwestern Pacific Ocean. The species, named Bathylepeta wadatsumi, has broader ecological implications as it appears to graze on sediment layers over rock.
A world-first study has mapped the global distribution and evolutionary relationships of brittle stars, revealing their quiet migration across entire oceans over millions of years. The research highlights the interconnectedness of deep-sea communities, particularly at temperate latitudes.
Researchers tracked adult penguins during return trips from foraging in the ocean off Argentina. The penguins used curved paths shaped by tides to conserve energy and take advantage of feeding opportunities.
Researchers discovered that approximately 436-million-year-old brachiopods formed a non-random, checkerboard-like pattern due to their tiny setae, which allowed them to maintain optimal spacing. This study provides rare evidence of ancient communities being shaped by biological interactions.
A new study by Macquarie University researchers found that adding colour to concrete panels increased marine biodiversity in Sydney Harbour. The team discovered that red panels supported communities distinct from other coloured panels, attracting higher numbers of green algae and barnacles.
A recent study found that the 2014-2016 Northeast Pacific marine heatwave caused unprecedented ecological disturbance, resulting in widespread kelp and seagrass declines and mass mortality events. The research highlights cascading impacts on species interactions, plankton communities, and offshore ocean productivity.
Researchers have observed Pacific sleeper sharks displaying aggressive and queuing behaviors while feeding on a cow carcass in the deep sea. The study provides insights into the species' distribution range and predating behavior in this previously unexplored habitat.
Research reveals extreme coral mortality after bleaching, with mortality exceeding 99% in some areas. The study highlights the urgent need for action on climate change, as repeated disturbances have compounded the ecosystem's vulnerability.
A new study found that hermit crabs with more sensory hairs on their claws recover faster from a startle response, indicating they are bolder. The research suggests a link between sensory ability and behavior, proposing a hypothesis called sensory investment syndrome.
A new study maps the geographical distribution of shallow-water marine mollusks, showing how temperature, ocean currents, and paleogeographic development shape their habitats. The research highlights the impact of rapid climate change on marine ecosystems, threatening biodiversity.
A groundbreaking study of 7000-year-old fossilized coral reefs reveals that human fishing has transformed Caribbean reef food webs. Shark populations have declined by 75%, while prey fish species have doubled in abundance and grown 17% larger on modern reefs.
Researchers developed a new way to analyze fossils, providing a day-by-day understanding of how prehistoric plankton adapted to their environment. The study revealed that temperature was a key factor in growth rates, with some species thriving in higher temperatures.
Researchers have identified microalgae that can break down kelp to obtain carbohydrates, providing a new ecological niche and opportunities for sustainable product development. This discovery has implications for various industries, including biofuels, feed production, recycling, and carbon cycle research.
A study reveals that decades of overfishing have significantly altered the genetic composition of Eastern Baltic cod, leading to reduced growth rates and smaller sizes. The researchers found a correlation between slower growth and increased survival under high fishing pressure.
The Barents Sea system – gateway to the changing Arctic book documents six years of interdisciplinary research on the Barents Sea. Researchers used various platforms, including drones, satellites, and underwater robots, to collect data and make predictions about future changes.
A study of 151 bluebottle specimens found four distinct species with unique morphologies and genetics, contradicting the long-held assumption of a single globally distributed species. The research team matched genomic lineages with physical forms identified from citizen-science images, verifying previously proposed but dismissed species.
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%.
A study by University of California - Davis and Woods Hole Oceanographic Institute found that cleaner fish stations influence damselfish and reef microbial diversity. The presence of cleaning gobies was linked to increased fish visits and changes in water nutrients and microbial communities.
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 group of top scientists, including Professor Callum Roberts and Professor Johan Rockström, are calling for a permanent ban on extractive activities in international waters. The authors argue that stopping all extractive activity would prevent irreversible damage to the climate, marine biodiversity, and ocean equity.
Researchers have developed an image-analysis tool called SeaSplat that cuts through the ocean's optical effects and generates images of underwater environments with accurate colors. The team paired SeaSplat with a computational model to convert images into three-dimensional underwater worlds, allowing for virtual exploration.
Clownfish have been shown to shrink in response to heat stress and social conflict, increasing their survival chances by up to 78%. The study also reveals that coordination with breeding partners is crucial for surviving heatwaves when shrinking.
Researchers created first complete genetic activity map of a branching worm, revealing how it controls reproduction across its multiple body branches. The study highlights the unique genetic toolkit and challenges understanding of animal bodies' organization.
Researchers warn that artificial oxygen input cannot replace comprehensive water protection strategies. Technical approaches have shown promise, but risks include intensifying greenhouse gases and disrupting marine habitats. Climate protection and reducing nutrient inputs remain crucial for mitigating ocean oxygen loss.
A study led by Monterey Bay Aquarium shows that the collapse of one marine predator can benefit another. Sea otters thrive in response to increased availability of mussels after a mussel boom is triggered by the loss of ochre sea stars, demonstrating keystone interdependence.
Researchers found that some shark bites are motivated by self-defense when sharks feel threatened or provoked. This discovery challenges the common perception of sharks as mindless predators and highlights the importance of respecting their space.
Dr. Uria Alcolombri was named one of the 19 Frontiers Planet Prize 2025 National Champions for his pioneering study on microbial dietary preference and its impact on carbon sequestration in the ocean. His research highlights the critical role of marine bacteria in regulating the Earth's carbon cycle.
A team of researchers from Syracuse University and the University of Louisiana at Lafayette has discovered a new surface texture on sculpin fins that may enhance their grip in harsh environments. This finding could lead to the development of bio-inspired adhesives for robots, medical devices, and other applications.
Camille Parmesan wins BBVA Foundation award for her pioneering studies on species shifting their geographical ranges in response to climate change. Her research has provided vital input to conservation strategies, including corridor creation and protected areas.
A study found that microorganisms using the reductive tricarboxylic acid cycle dominate in shallow-water hydrothermal systems. This energy-efficient process enables them to transfer carbon into organic molecules, allowing them to survive in harsh conditions.
Researchers from the UK and Australia are combining forces to tackle pressing global challenges through eight collaborative projects focusing on AI, sustainability, space, and cybersecurity. The partnership aims to develop innovative technologies that work for people and the planet, not just profit.
A team on board R/V Falkor has captured the first confirmed footage of a colossal squid in its environment, revealing a rare glimpse into the lives of these massive creatures. The baby squid is estimated to be around 2 meters long and weighs over 20 kilograms.
A new DNA detection system allows for the efficient surveying of cephalopods in deep-sea habitats. The technique uses environmental DNA metabarcoding to detect specific species, providing insights into their ecology and behavior.
A new study suggests that sunflower sea stars are surviving disease outbreaks in British Columbia's Central Coast fjords due to the unique oceanographic conditions. The fjords' mix of cold water and freshwater runoff provides a refuge for the species, allowing them to venture deeper and escape the effects of sea star wasting disease.
The deep sea accounts for 90% of ocean volume and hosts diverse ecosystems. However, human activities like mining and climate change threaten these areas. Scientists emphasize the need for major investment in deep-sea research to address knowledge gaps and inform sustainable management strategies.
Researchers from Rutgers University mapped mercury contamination in penguins of the Southern Ocean, revealing variations in mercury accumulation among different species. The study found that Adelie and gentoo penguins had low mercury levels, while chinstrap penguins showed significantly higher exposure due to their migration patterns.
A UMaine study compares two scallop farming methods to determine which approach yields the best results. Ear-hanging culture was found to have slightly larger shell heights and up to 12% more adductor muscle weight, a key factor in market value. The research provides new insights for commercial growers aiming to maximize profitability.
A new species of multisegmented fossil has been discovered in the Soom Shale with exceptionally preserved insides, including muscles, sinews, and tendons. The fossil, named Keurbos susanae, provides a unique glimpse into the evolutionary relationships of ancient arthropods.
Researchers at Schmidt Ocean Institute have discovered vibrant communities of ancient sponges and corals in the wake of recently detached iceberg A-84. This observation sheds new light on the resilience and adaptability of Antarctic ecosystems.
Marine animals are being used to gather valuable data on human impact on the ocean. Biologging, attaching sensors to wild animals, provides insights into environmental conditions and behaviors. The goal is to develop an 'Internet of Animals' with shared standards for data sharing, enabling targeted policies and a sustainable coexistence.
Researchers from the University of Gothenburg have discovered that Pacific oysters can reproduce in less salty waters, potentially allowing them to colonize the western Baltic Sea. The study found that genetic diversity and breeding habitat play a crucial role in the oysters' ability to adapt.
Thorny skates exhibit a unique size discrepancy, with small and large varieties coexisting along the North American coast. A new study reveals that COVID-19 restrictions led to an abundance of genetic data, allowing researchers to uncover the secret behind the size difference.
A recent study found that intense east coast low storms and marine heatwaves caused the deaths of over 200 weedy seadragons on Sydney beaches. The extreme weather triggered record-breaking waves and rainfall, which seadragons struggle to handle.