Articles tagged with Marine Life
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.
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.
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.
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 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.
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.
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.
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.
A new study by the University of Plymouth investigated the effect of changing global climate conditions on Christmas Island's red crab embryos. The researchers found that lower salinity levels did not delay embryonic development, but emphasized the need for further research to understand the species' response to environmental stressors.
New research suggests that volcanic activity billions of years ago accelerated oxygenation, leading to an increase in atmospheric oxygen. This pre-Great Oxygenation Event (GOE) may have provided the necessary conditions for photosynthetic microorganisms to thrive, ultimately paving the way for complex life.
Researchers used a novel approach to estimate megalodon's body length and shape, finding it closer in shape to a lemon shark or large whale. The study suggests the prehistoric predator may have reached about 80 feet in length and weighed an estimated 94 tons.
Researchers found a synchronization between geological climate archives and large-scale volcanic eruptions in the Deccan Traps, which may have caused mass extinctions. The study suggests that changes in Earth's orbit around the sun regulate the amount of incoming solar radiation, affecting global climate patterns.
A new study combines satellite collar data with specialized cameras to shed light on the mysterious and important stage of maternal denning. The researchers found that using both methods can accurately predict when polar bears will emerge from their dens and how external factors like temperature influence their behavior.
New research reveals that human disturbances near southern sea otters can increase their energetic costs, potentially affecting their health and survival. The likelihood of disturbance decreases with distance from the otters, but even small craft within 29 meters can have a significant impact.
Dr. Jonathan Cox warns of the dangers of raw sewage in UK coastal waters, highlighting the risk of gastrointestinal, respiratory, and skin infections to vulnerable groups. He advocates for checking water quality before visiting beaches and praises efforts like the Safer Seas and Rivers Service to combat pollution.
A new USF study emphasizes the importance of protecting coastal marine ecosystems, particularly tidal flats, which provide critical habitats for fish populations and contribute to global seafood supplies. The team recommends adopting core strategies for boaters, anglers, wildlife managers, and policymakers to prioritize preservation.
Researchers propose that timing hypothesis explains the mystery of missing blue whale calves, where births occur in fall and winter, and calves are weaned before returning to feeding areas. This explanation offers alternative insight into high pregnancy rates vs. low sightings of mother-calf pairs.
A study investigating aquatic species response to environmental stress factors in urban habitats reveals populations adapt and become more resilient. This finding supports the hypothesis that urban habitats provide clues about animal adaptation to future environmental changes.
The International Shark Attack File reported only 47 unprovoked shark bites globally in 2024, down from 22 in 2019. Four fatalities occurred last year, with the US having the highest number of unprovoked bites, accounting for 28 incidents.
Researchers tracked 131 juvenile sea turtles and found they may be active swimmers during their early life stage, challenging existing hypotheses. The study provides important data for assessing risks from human activity and informing conservation efforts.
Nanomaterials are being studied for their potential in combating marine oil spills, with promising results showing improved removal efficiency and reduced toxicity. The researchers emphasize the need for eco-friendly and sustainable approaches to minimize environmental risks.
Researchers developed a new technique to estimate prey size and energy content from animal-borne camera footage, providing insights into predator-prey interactions and foraging strategies. This study on Humboldt, King and Tawaki/Fiordland penguins sheds light on the feeding behavior of marine wildlife.
Researchers have discovered that chameleon shrimp can disguise themselves in exotic algae from other oceans, regardless of their evolutionary history. The crustaceans prefer to hide in invasive species with complex structures that offer better protection from predators.
The study highlights the potential of novel techniques to collect and analyse plankton data more efficiently, filling knowledge gaps and generating complete pictures of plankton dynamics. However, integrating old and new methods is crucial to ensure accurate assessments of marine biodiversity.
A new article suggests that queen conch aquaculture is not a viable solution for repopulating declining populations due to high natural mortality rates. The study recommends prioritizing protection of natural breeding aggregations and implementing proactive fisheries policies instead.
A new study by the University of Portsmouth warns that corrosion-protection systems in offshore wind turbines could leach harmful levels of metal into the ocean. The research highlights the need for comprehensive monitoring of water and sediments around wind farms to mitigate risks to ecosystems and human health.
Researchers discovered that a species of foraminifera thrives in dark, oxygen-free environments by utilizing chemoautotrophy to take up carbon. This process allows eukaryotes to survive in conditions similar to those during the Precambrian era.
A new species of giant isopod, Bathynomus vaderi, has been discovered in Vietnamese waters, reaching lengths of up to 32.5 cm and weighing over a kilogram. The species was named after Darth Vader's iconic helmet and has become an expensive delicacy in Vietnam.
Research shows that juvenile sablefish are increasingly competing with young salmon for food in coastal waters off the Northwest, potentially putting salmon at a disadvantage. This overlap could be exacerbated by ocean warming and climate change, which already threaten salmon survival.
A study by Osaka Metropolitan University experts found that male medaka can mate up to 19 times a day, releasing more than 50% of their daily sperm output in the first three matings. The fertilization rate decreases significantly after this point, with some cases showing no fertilization.
A new study reveals the oldest known example of an evolutionary arms race in fossilized shells from the Cambrian period. The researchers found that a small shelled animal distantly related to brachiopods and an unknown marine animal were engaged in a microevolutionary arms race, with each species adapting and evolving in response to th...
A new study by Tel Aviv University reveals Rujm el-Hiri's original alignment does not match celestial observations, casting doubt on its use as an astronomical observatory. The site's current orientation differs from its original position due to thousands of years of geodynamic shifts.