Articles tagged with Marine Life
Comprehensive exploration of living organisms, biological systems, and life processes across all scales from molecules to ecosystems. Encompasses cutting-edge research in biology, genetics, molecular biology, ecology, biochemistry, microbiology, botany, zoology, evolutionary biology, genomics, and biotechnology. Investigates cellular mechanisms, organism development, genetic inheritance, biodiversity conservation, metabolic processes, protein synthesis, DNA sequencing, CRISPR gene editing, stem cell research, and the fundamental principles governing all forms of life on Earth.
Comprehensive medical research, clinical studies, and healthcare sciences focused on disease prevention, diagnosis, and treatment. Encompasses clinical medicine, public health, pharmacology, epidemiology, medical specialties, disease mechanisms, therapeutic interventions, healthcare innovation, precision medicine, telemedicine, medical devices, drug development, clinical trials, patient care, mental health, nutrition science, health policy, and the application of medical science to improve human health, wellbeing, and quality of life across diverse populations.
Comprehensive investigation of human society, behavior, relationships, and social structures through systematic research and analysis. Encompasses psychology, sociology, anthropology, economics, political science, linguistics, education, demography, communications, and social research methodologies. Examines human cognition, social interactions, cultural phenomena, economic systems, political institutions, language and communication, educational processes, population dynamics, and the complex social, cultural, economic, and political forces shaping human societies, communities, and civilizations throughout history and across the contemporary world.
Fundamental study of the non-living natural world, matter, energy, and physical phenomena governing the universe. Encompasses physics, chemistry, earth sciences, atmospheric sciences, oceanography, materials science, and the investigation of physical laws, chemical reactions, geological processes, climate systems, and planetary dynamics. Explores everything from subatomic particles and quantum mechanics to planetary systems and cosmic phenomena, including energy transformations, molecular interactions, elemental properties, weather patterns, tectonic activity, and the fundamental forces and principles underlying the physical nature of reality.
Practical application of scientific knowledge and engineering principles to solve real-world problems and develop innovative technologies. Encompasses all engineering disciplines, technology development, computer science, artificial intelligence, environmental sciences, agriculture, materials applications, energy systems, and industrial innovation. Bridges theoretical research with tangible solutions for infrastructure, manufacturing, computing, communications, transportation, construction, sustainable development, and emerging technologies that advance human capabilities, improve quality of life, and address societal challenges through scientific innovation and technological progress.
Study of the practice, culture, infrastructure, and social dimensions of science itself. Addresses how science is conducted, organized, communicated, and integrated into society. Encompasses research funding mechanisms, scientific publishing systems, peer review processes, academic ethics, science policy, research institutions, scientific collaboration networks, science education, career development, research programs, scientific methods, science communication, and the sociology of scientific discovery. Examines the human, institutional, and cultural aspects of scientific enterprise, knowledge production, and the translation of research into societal benefit.
Comprehensive study of the universe beyond Earth, encompassing celestial objects, cosmic phenomena, and space exploration. Includes astronomy, astrophysics, planetary science, cosmology, space physics, astrobiology, and space technology. Investigates stars, galaxies, planets, moons, asteroids, comets, black holes, nebulae, exoplanets, dark matter, dark energy, cosmic microwave background, stellar evolution, planetary formation, space weather, solar system dynamics, the search for extraterrestrial life, and humanity's efforts to explore, understand, and unlock the mysteries of the cosmos through observation, theory, and space missions.
Comprehensive examination of tools, techniques, methodologies, and approaches used across scientific disciplines to conduct research, collect data, and analyze results. Encompasses experimental procedures, analytical methods, measurement techniques, instrumentation, imaging technologies, spectroscopic methods, laboratory protocols, observational studies, statistical analysis, computational methods, data visualization, quality control, and methodological innovations. Addresses the practical techniques and theoretical frameworks enabling scientists to investigate phenomena, test hypotheses, gather evidence, ensure reproducibility, and generate reliable knowledge through systematic, rigorous investigation across all areas of scientific inquiry.
Study of abstract structures, patterns, quantities, relationships, and logical reasoning through pure and applied mathematical disciplines. Encompasses algebra, calculus, geometry, topology, number theory, analysis, discrete mathematics, mathematical logic, set theory, probability, statistics, and computational mathematics. Investigates mathematical structures, theorems, proofs, algorithms, functions, equations, and the rigorous logical frameworks underlying quantitative reasoning. Provides the foundational language and tools for all scientific fields, enabling precise description of natural phenomena, modeling of complex systems, and the development of technologies across physics, engineering, computer science, economics, and all quantitative sciences.
A study found that more than 70% of Chinook populations have declined over the last 50 years, but some populations are recovering due to their diverse migration and spawning strategies. Cold water and marine habitats play a key role in their success, particularly for fall and summer stocks.
Researchers used unique stripe configurations to identify individual octopuses over time, enabling long-term studies. The findings provide insights into the behavior and ecology of this species.
Researchers at Rutgers University have sequenced the complete DNA sequence of the little skate, identifying key genes responsible for its distinctive wing-like pectoral fins. The study reveals extensive rearrangements in fin formation genes and conservation of chromosomal identity across cartilaginous fish.
Researchers Pawel Burkhardt and Fred Wolf will study the simple nervous system of marine organisms to understand brain evolution. The project aims to reveal the neural network of ctenophores, a predator with an alien-like brain.
A recent study found that ocean warming triggers dinoRNAV infections in coral colonies, intensified in unhealthy colonies. This is the first empirical evidence of reef-wide dynamics of viruses infecting coral symbionts during heat waves.
A team of researchers from South Africa has discovered exceptional trace fossils that provide insight into the locomotion of ancient giant amphibians. The fossils, found on a rock surface once part of a tidal flat or lagoon, suggest these animals propelled themselves through water with continuous side-to-side tail motions.
A rare strain of Toxoplasma has been found in California sea otters, killing them with severe inflammation and potentially threatening other marine life. The COUG strain was first detected in Canadian mountain lions, and its impact on humans and other animals is unknown.
A recent study has identified a rare strain of Toxoplasma gondii, COUG, in sea otters that caused fatal steatitis and toxoplasmosis. The strain is virulent and can rapidly kill healthy adult otters, posing a health threat to other marine wildlife and humans.
A new study finds that supernovae have a persistent influence on marine life's biodiversity, with variations in nearby exploding stars closely following changes in marine genera. Supernovae may regulate climate through cosmic rays, influencing nutrient transport and primary bioproductivity.
The Minderoo-Monaco Commission on Plastics and Human Health issues a sweeping new report highlighting the far-reaching health hazards of plastics across their life cycle. The report examines the economic, health, environmental, and social costs associated with plastics from extraction to end states.
Human activities are causing rapid changes to the ocean soundscape, harming invertebrates through cellular and ecosystem-level impacts. The study highlights the sensitivity of various invertebrates to underwater sound and emphasizes the need for urgent research and mitigation strategies.
Researchers identify egg yolk proteins retained in viviparous sharks and rays, which may provide nutrition to developing embryos. The study suggests that these proteins have evolved a new function in cartilaginous fishes, potentially facilitating the transition from egg-laying to live birth.
A new study led by Florida State University researchers found that plants and small organisms in Arctic rivers contribute significantly to carbon export, accounting for 40-60% of particulate organic matter flowing into the ocean. This discovery highlights the importance of rivers as a crucial component of the modern carbon cycle.
A new study by Monterey Bay Aquarium reveals the key components contributing to successful releases of orphaned southern sea otters back into the wild. The research emphasizes the strong maternal drive of surrogate female sea otters in nurturing and caring for pups, resulting in a three-quarters success rate.
Researchers discovered a new species of bacteria, Sulfurimonas pluma, living in cold, oxygen-saturated hydrothermal plumes globally. The microorganism uses hydrogen as an energy source, contrary to previous assumptions and expanding our understanding of its ecological role.
Researchers found that mineral-organic carbon preservation slowed down decomposition, allowing atmospheric oxygen levels to increase unhindered. This process enabled complex life forms to evolve and ultimately led to the development of intelligent life on Earth.
A new technology developed by Arizona State University researchers allows scientists to remotely track the location and time of birth for shark pups, enabling them to protect critical habitats. The device, called Birth-Alert-Tags (BAT), has yielded remarkable results, revealing previously unknown birth sites for certain shark species.
A new phylogenetic tree analysis by the University of Vienna has provided fresh insights into the evolutionary history of sharks and rays. The study found that the Late Jurassic shark Protospinax annectans was a highly evolved species, contrary to previous hypotheses about its position in the family tree.
A new study found that sea stars, such as the sunflower sea star, play a crucial role in protecting kelp forests by preying on kelp-eating urchins. The research suggests that these sea stars can consume urchins at rates sufficient to maintain and perhaps reset the health of kelp forests.
A new study by University of York researchers has found that Mediterranean hunter-gatherers 9,500 years ago had a strong coastal economy based on marine life. The discovery challenges traditional views on the diet of prehistoric Europeans and sheds light on the impact of humans on the environment.
Researchers found that the Paleocene-Eocene Thermal Maximum, a 5-8°C warming event, was caused by high carbon dioxide and methane levels. The team's study provides new insights into sedimentary systems and the impact of seasonal changes on ocean turbidity.
Researchers have studied sailfish hunting behavior for the first time, revealing a unique hunting strategy. The study estimates that sailfish need roughly half of a tuna per day to meet their energetic demands, shedding light on their basic biology.
A study by Pusan National University researchers investigates the effects of mild acid hydrolysis on sulfated fucans in sea cucumbers and sea urchins. The results show selective 2-desulfation, leading to an 8-sugar-long oligosaccharide production.
A study by University of Gothenburg researchers identifies two distinct types of cod, 'offshore cod' and 'coastal cod', genetically adapted to different environments. The coastal cod remain in the fjords, but their adult stage is uncertain, with possible spawning locations still unknown.
A 250.8 million-year-old fossil find reveals complex marine ecosystems on Earth just one million years after the Permian-Triassic mass extinction, contradicting long-held theories. The discovery provides insights into life's rapid recovery from extreme crises and necessitates a re-evaluation of early Triassic ocean conditions.
Fossils of a type of sea worm, Iotuba chengjiangensis, have provided new insights into the evolution of annelid worms. The discovery suggests that these worms diversified into different lineages around 515 million years ago, during the Cambrian explosion.
A new study on Chesapeake Bay water quality found that pollution thresholds affect reduction efforts, and larger reductions may be needed to induce complete reversal of eutrophication-induced hypoxia. The research revealed that the system responds only until a certain threshold is crossed, then it takes twice the effort to make a change.
A new study has uncovered a nearly complete specimen of the ancient 'marine crocodile', Turnersuchus hingleyae, from the Early Jurassic period in Dorset, UK. The find provides crucial insights into thalattosuchian evolution and origin, suggesting that these creatures likely emerged around 15 million years earlier than previously thought.
A new study by SFU researchers found that shark and ray populations in the northwest Atlantic are recovering after implementation of a U.S. fishery management plan in 1993. The study shows that declines have been halted in three species and six species are clearly rebuilding, thanks to regulation, enforcement, and monitoring.
Research from Virginia Tech reveals that shark populations are recovering in northern Atlantic waters where regulations have been put in place. This is a promising conservation success story for vulnerable species.
Researchers at the University of Adelaide analyzed DNA samples from over 100 retailers across South Australia and found four threatened shark species being sold as flake. The study highlights the need for clearer national guidelines or labelling laws to build trust across the supply chain.
A new study found that red sea urchin populations in Northern and Southern California have different levels of vulnerability to climate change. The researchers grew juvenile sea urchins in outdoor tanks and exposed them to changing conditions, showing that the Southern California population is more sensitive to environmental changes.
A study published in Current Biology found that dolphins 'shout' over loud underwater noise to complete a cooperative task, but their success rate decreases as noise levels increase. The researchers observed changes in dolphin body language and vocalization patterns in response to the increasing noise.
Experiments show that UV light from the sun breaks down plastics on the ocean surface, turning them into smaller, invisible nanoplastic particles. This process could account for a substantial amount of the 'Missing Plastic Paradox', where plastic waste in the ocean is only a fraction of what has been littered.
A recent study found a female zebra shark reproducing via parthenogenesis even with healthy males present, contradicting previous assumptions about the process. The discovery has implications for conservation efforts and the care of zebra sharks in zoos and aquariums.
Researchers found that sea urchin larvae exposed to high levels of plastic pollution developed significant developmental abnormalities, including malformation of the skeleton and immune cells. The study reveals how newly made PVC pellets and beach-collected fragments cause harm to the embryos.
A new fossil site in Morocco has revealed giant arthropods that were up to 2m long and played a unique role in ancient ecosystems. The discovery opens new avenues for paleontological research and provides insights into the evolution of early animal life on Earth.
Researchers have developed a robot capable of sorting, manipulating, and identifying microscopic marine fossils. Forabot uses robotics and artificial intelligence to automate the tedious process of evaluating foram shells and fossils.
Researchers used hydrophones to monitor two deep-sea hydrothermal vents, finding that they produce subtle sounds near the low end of human hearing range. Characterizing these sounds can help predict and prevent environmental impacts of deep-sea mining.
Researchers found that Kellet's whelk larvae are susceptible to developmental abnormalities and mortality at high temperatures, with half of hatchlings dying off at 27.6°C and veligers more resistant to defects at 24.9°C
Researchers identified various feeding behaviors in nurse sharks, including vertical and ventral feeding, as well as 'pectoral positioning' where they flex their pectoral fins. This adaptable behavior suggests nurse sharks can thrive on different prey across various habitats.
A study explores the link between shark nose shape, size, and sensitivity of smell. The researchers found that more lamellae in rosettes with an elongated shape are associated with increased odor sensitivity.
Researchers discovered a unique anatomical design in octopus nerve cords that connects arms symmetrically, providing new insights into alternative nervous system structures. This discovery may aid in the development of new engineered technologies, such as robots and autonomous underwater devices.
Researchers from the California Academy of Sciences developed a new modeling approach to understand how extinct species like the Steller's sea cow impact ecosystems. The study found that including the
A study by the University of Exeter found that 74% of green turtles foraging in Cyprus feed at Lake Bardawil, an Egyptian lagoon. The number of turtle nests has increased almost tripled since the early 1990s, but their dependence on this single location leaves them vulnerable to changes in conditions.
A new study published in Marine Pollution Bulletin found significantly higher levels of polyethylene, polypropylene, acrylic, and polyamide in the North Atlantic gyre compared to other offshore locations. Inshore areas exhibited a diverse range of polymers, possibly influenced by proximity to various plastic sources.
Scientists discovered that the first complex, multicellular life forms on Earth were wiped out 550 million years ago due to oxygen loss in the oceans. The researchers used nearly every known Ediacaran animal's environment and habits to disprove previous explanations for their disappearance.
A new study reports that SharkGuard, a shark deterrent device, significantly reduces the number of blue sharks and pelagic stingrays caught in tuna fisheries. The technology emits a localized electric field around a baited hook, discouraging sharks from biting without getting hooked on other fish.
Researchers found that a device called SharkGuard emits small electrical pulses to scare off sharks, reducing bycatch by up to 91% for blue sharks and 71% for stingrays. Further testing is needed to explore the effects on target species like bluefin tuna.
A new study suggests that ray-finned fish diversified earlier than previously thought, accumulating small changes before the Carboniferous period. The fossil specimen Palaeoneiros clackorum shows features typical of younger species, indicating a more complex picture of species diversification.
A new species of ancient turtle, Leviathanochelys aenigmatica, has been discovered in Spain with an estimated body length of up to 3.74 meters. This specimen represents the largest marine turtle ever found in Europe and one of the largest worldwide, challenging previous records held by the extinct genus Archelon.
Researchers developed a global indicator to measure marine biodiversity based on extinct fish populations, revealing worsening extinction risk since the 1950s. Implementing management measures can reduce fishing mortality and recover tunas and billfishes, but sharks continue to face threats due to overfishing.
Researchers recorded gloomy octopuses throwing debris, with females accounting for 66% of throws. The behavior was often linked to social interactions or mating attempts.
Researchers found that female tiger sharks that frequently visit Tiger Beach in the Bahamas are larger and have higher hormone levels than other individuals. The study suggests possible effects of mass tourism on these sharks, with females having better nutritional states and more omega-3 in their blood.
Researchers at the Royal Netherlands Institute for Sea Research found an upward trend in skate populations in the North Sea, with a significant increase off Scotland's north coast. The study also revealed that skates mainly eat shrimp, providing ecological potential for more fish to thrive.
A team of researchers, led by Ling Li from Virginia Tech, has discovered the key strategies behind the strength and toughness of sea urchin exoskeletons. The study reveals that a balance between branch connection nodes and pore size is critical to the material's damage tolerance.
A low-cost sensor disguised as a sea turtle egg can predict nest hatching time almost to the day. The TurtleSense system monitors nests remotely and detects synchronized developmental movement in real-time, enabling better decision-making for conservationists.
In a study published in PLOS ONE, researchers found that large pelagic fish prefer using sharks as scratching surfaces for parasites. In contrast, smaller fish tend to avoid taking this risk due to the threat of predation, highlighting the adaptability of these species.
FathomNet aggregates images from multiple sources to create a publicly available, expertly curated underwater image training database. The database uses artificial intelligence and machine learning to alleviate the bottleneck for analyzing underwater imagery, accelerating important research around ocean health.
A new study reveals that vertical migrators, including krill and jumbo squid, are unlikely to leave their native tropical zones due to climate change. Instead, they may expand their habitat northward in response to temperature changes and altered metabolic requirements.