Researchers found five deep-sea species to exhibit genetic warning signs associated with elevated extinction risk, with one species losing 8% of its genetic diversity over 12 years. Genetic diversity is essential for species survival, and the study highlights the importance of long-term monitoring to detect changes in marine populations.
After decades of absence, the Eurasian otter has re-emerged in Kashmir Valley, with researchers detecting viral social-media video records, field surveys, and diagnostic otter spraints. The species' reappearance signals improved ecosystem resilience, but modern landscapes create novel risks, including habitat loss and pollution.
A new species of pygmygoby, Trimma charon, has been discovered in the Red Sea's unexplored deep reefs. The species, found at a depth of 30 meters, has distinctive golden spots on its tail fin and is considered a significant discovery for the region's goby genus.
The study found that Nematostella carries eight of the ten proteins humans use to pair and align meiotic chromosomes, making it a promising system for understanding human fertility. The sea anemone's proteins show unexpected flexibility in their roles, revealing new insights into meiosis and its potential impact on fertility.
A new study reveals how marine heatwaves disrupt humpback whales' metabolism, nutrient use, and reproductive success. Researchers analyzed biochemical records in baleen to understand the physiological mechanisms behind population declines, and found that whales 'power down' during heatwaves, making early pregnancy harder to maintain.
Baby manta rays stay in safe coastal areas with abundant food and hiding spots until they're large enough to face ocean dangers, while adults migrate long distances to avoid threats. The study tracked manta rays using acoustic and satellite telemetry, finding that coastal refuges serve as critical refuges for young mantas.
Researchers at FAU's Harbor Branch Oceanographic Institute will investigate environmental and biological mechanisms driving harmful algal blooms in subtropical estuaries. The project aims to refine predictive models to mitigate blooms in other estuaries, with potential economic benefits of $28.3 billion.
Researchers found that genes associated with appendage patterning showed expression along developing cephalopod arms, but not in suckers. Instead, genes like Ets1, involved in early embryonic development, were reused to form suckers. This suggests that cephalopods evolved suckers by reusing existing genes in new ways.
Researchers found Rh glycoproteins, known ammonia transporters, expressed in male seahorse brood pouch. These proteins help remove ammonia, a toxic waste product, from the pouch. The study provides evidence for the unique ammonia removal system in male seahorses, protecting developing embryos.
Researchers at UCLA found the fungus Batrachochytrium dendrobatidis proliferates in Yosemite toads' winter burrows, infecting previously healthy toads. The discovery challenges current thinking on the infection season, suggesting the fungus grows and spreads during harsh winter hibernation.
Researchers developed an AI-based system to detect temperature stress in fish, revealing diverse temperature tolerance among Medaka fish and closely related species. The system accurately predicts the effects of climate change on fish, with implications for conservation and large-scale comparisons among strains and species.
Researchers found that fish serotonin transporters, similar to human counterparts, can be highly sensitive to antidepressants found in water, highlighting potential risks to aquatic life. The study suggests prioritizing specific pharmaceuticals in environmental monitoring programs and deriving species-specific risk thresholds.
Preliminary analysis suggests dolphin milk microRNAs are substantially similar to those of terrestrial mammals, sharing dominant microRNA families. This finding indicates potentially similar lactation mechanisms in dolphins, despite their adaptation to an aquatic lifestyle
Researchers found that most larval cells in acorn worms were reprogrammed to take on new roles in the adult organism, including neurons and skin cells. This challenges the long-held assumption that cells become increasingly restricted in their function as they develop.
Researchers found altered gene expression in wharf roach guts after consuming expanded polystyrene, but no significant impact on lifespan. The gut microbiome showed little change, but rare microbes were detected in EPS-fed specimens. This highlights the need to manage EPS waste carefully and prioritize coastal cleanup efforts.
A global study of over 23,000 marine mollusk species found that body size is projected to decline in most ocean regions by 2100, but some groups will grow larger. Researchers analyzed temperature, oxygen, and ocean productivity to predict changes in five major groups of mollusks.
Researchers found that reef fish exposed to motorboat noise as embryos and juveniles grow smaller and have impaired survival skills. The study suggests that limiting motorboat traffic near reefs during breeding season may help preserve coral reefs.
A large-scale study of nearly 700 species of Neogastropoda provides strong evidence for their single evolutionary origin, identifying four new families and a previously undetected burst of diversification in the early Cenozoic. This finding challenges existing knowledge of marine snail diversity and evolutionary history.
Cool river temperatures in first 15 days after fertilization are crucial for survival, with warm years limiting survival. Research suggests strategies like reintroduction to historical habitat may be more effective in the long run than targeting specific cold water releases.
New research reveals that blue mussels reduce filtration activity in response to parasite detection, with potential consequences for ecosystem function. The 'ecology of fear' concept shows that the mere risk of infection can cause mussels to change behavior, making it harder for parasites to infect them.
Dolphins use acoustic cues to navigate and find food, with whistles associated with social behavior and echolocation linked to sound-producing fish. The study reveals distinct patterns in dolphin communication, suggesting dolphins favor different habitats for socializing and hunting.
A two-year collaboration between Anindilyakwa Land and Sea Rangers and UTS scientists has delivered the first comprehensive scientific baseline for the corals around Groote Archipelago in Australia's Northern Territory. The study found coral cover ranging from 5 to 47 per cent across sites, dominated by hardy massive corals.
Researchers analyzed shark vertebrae to discover a finely engineered biomechanical system supporting strength, flexibility, and swimming efficiency. Different species evolved unique internal structures reflecting their varied swimming strategies.
A single monitoring network developed by McGill University and partners detected multiple types of data in the Lower St. Lawrence, including underwater earthquakes, whale calls, ship noise, and tidal activity. The results show potential applications for conservation and marine policy.
A study by researchers from the University of Ottawa found that Calling and Non-calling western toads are genetically distinct, behaviourally different, and have ecological variations. This discovery has important implications for conservation and wildlife management in Canada.
Researchers found that Bigg's killer whales are increasingly present in Puget Sound, while southern resident killer whales are spending less time in inland waters. The data suggests that social cues may play a role in the changing distribution of southern residents.
Researchers identified a severe outbreak of bivalve transmissible cancer in soft-shell clams in Puget Sound, with prevalence exceeding 75% by 2024. The disease was recently introduced from Atlantic Coast populations and was tracked using a new environmental DNA assay.
The FAU Queen Conch Mobile Lab has successfully hatched its first queen conch egg masses and juveniles, marking a significant milestone in the conservation of this iconic Caribbean species. The lab, designed to grow up to 2,000 juvenile queen conchs annually, will support restoration efforts throughout the region.
Researchers have digitally preserved the vaquita by scanning a complete skeleton and creating interactive 3D models. The technology enabled the team to capture microscopic skeletal details and make the information accessible to anyone, with the resulting models being made freely available through MorphoSource.
Researchers have described two new Hydropsyche species from the Middle East and Caucasus, highlighting the importance of traditional morphological examination and advanced DNA analysis. The discoveries, made in Azerbaijan, Iran, and Türkiye, underscore the region's vast potential for new aquatic species yet to be found.
Researchers developed a machine learning framework to detect and classify shell-crushing sounds, enabling the quantification of predator impacts on mollusk populations. The system uses multi-step approaches and demonstrates strong performance in controlled tank conditions and field settings.
Researchers found that discarded sea cucumber tissue can grow, diversify cells, and reorganize itself in natural seawater, challenging assumptions of tissue immortality. This discovery has profound implications for biomedical sciences and engineering, with potential applications in tissue regrowth and anti-microbial healing.
A new species of sea slug, Thecacera sesama, has been identified in the coastal waters of Keelung, Taiwan. Measuring less than three millimeters in length, this tiny nudibranch exhibits four primary behaviors: feeding, searching, mating, and laying eggs on bryozoans.
A newly-discovered blue octopus from the Galapagos Islands has been identified as Microeledone galapagensis, and its unique features were revealed through micro CT scans. The species is the first new octopus species led by curator emerita Janet Voight in her four-decade career.
An observational study published in Frontiers in Marine Science revealed that Guadalupe fur seals are experiencing significant hair loss due to an alopecia syndrome. The study highlights the need for urgent action to address early mortality and human impact on these vulnerable marine mammals
Researchers discovered that water fleas use chemoreceptors to detect predator signals, involving ionotropic receptors IR25a and IR93a. Without these co-receptors, Daphnia lose their defense mechanisms against predators.
Researchers analyzed over 7,000 salmon stomachs to understand their diet in different regions of the Salish Sea. The study found that year-round, herring are the most important food for adult Chinook salmon, while seasonal changes affect the diversity of prey.
A new study reveals that four specific genes are crucial for the Atlantic herring's adaptation to low salinity in the Baltic Sea. The genes, expressed in sperm, eggs, and early embryos, enable the fish to reproduce successfully in brackish water.
Research suggests that jellyfish bycatch can provide high-quality collagen without compromising quality. This circular bioeconomy solution offers new economic opportunities for small-scale fisheries while reducing waste. The collaboration with fishers revealed a willingness to participate in recycling jellyfish bycatch, but also highli...
Scientists used environmental DNA to document species in deep underwater canyons, including the giant squid and other rare species. The study reveals a vast amount of deep-sea biodiversity in Western Australian waters, with dozens of new species detected.
The Mediterranean fin whale population is found to be genetically connected to North Atlantic populations, contrary to previous assumptions. This finding highlights the need for reevaluation of conservation strategies and increased connectivity between populations.
Researchers discovered that sea urchin eggs can integrate chromoplast-derived carotenoid crystals, which enhance larval development and increase their survival rate by 50%. This integration enables the larvae to adapt to different environments.
A new study from Okinawa Institute of Science and Technology (OIST) identifies the 'long fuse' that led to the diversification of modern squid and cuttlefish. The research suggests that these animals originated in the deep ocean around 100 million years ago, sparking rapid evolution after a mass extinction event.
Researchers have announced the discovery of 24 new deep-sea amphipod species from the Clarion-Clipperton Zone in the central Pacific Ocean. The discoveries, part of an open-access special issue, provide fundamental knowledge of species and their distributions.
Nations are coming together at the Convention on the Conservation of Migratory Species of Wild Animals (CMS) to address declining population trends and extinction threats among migratory species. The meeting aims to establish conservation policies and protections for over 2,000 species under threat.
Researchers found juvenile smalltooth sawfish showing strong site fidelity to the South Fork of the Saint Lucie River, spending up to 87% of their time within a 0.4 square kilometer area. This suggests that the Indian River Lagoon is once again functioning as a nursery for this endangered species.
The Okinawa Institute of Science and Technology (OIST) has developed a scalable aquaculture platform that automates early-life stages, minimizing pathogen exposure and animal stress. The system uses light and flow-guided systems to improve survival rates and reduce labor input.
Researchers at UNLV have created a 3D-printed synthetic California sea lion pelvic region, enabling medical professionals to conduct blood collection training on anatomically authentic models. This innovation has the potential to improve veterinary procedures and benefit human lives in the long run.
A study published in the Journal of Experimental Marine Biology and Ecology found that exposure to oleamide, a chemical additive in plastics, caused immediate changes in octopus prey choice and interactions with predators. The effects persisted for at least three days, suggesting a lasting impact on marine behavior and ecosystem dynamics.
A new study reveals that the presence of older fish accelerates bar loss in young tomato anemonefish, a process linked to social hierarchy and environmental adaptability. The researchers suggest this may be an insurance policy against invasion, with younger fish losing their bars as they are accepted into the group.
Researchers have identified three previously unknown genotypes of Helicobacter bacteria in pygmy sperm whales stranded along the southeastern US coast. The discovery raises new questions about microbial pathogens on ocean health and their impact on vulnerable species.
A new study found that warmer sea surface temperatures cause loggerhead sea turtles to nest earlier and more frequently, but also reduces their reproductive output as ocean productivity declines. This shift has worrying consequences for the long-term resilience of the species.
Scientists captured rare view of beaked whales by listening to their natural sounds, revealing deep-diving behavior. The study provides the first detailed description of Gervais' beaked whale dives anywhere in the world.
A new eDNA-based method has been developed to detect vulnerable Amazonian manatees in the remote western Amazon. The study reveals that these freshwater mammals are most commonly found in areas with low human activity.
A new FAU study uncovers the impact of acidic water on shell-building marine organisms, highlighting the need for strategies to mitigate coastal acidification. The research found that nutrient pollution, freshwater input, and other environmental factors contribute to reduced aragonite saturation.
A new study characterizes the sounds produced by flying gurnards, revealing two distinct types of grunt-like sounds that differ in duration, frequency, and rhythm. The researchers also found that juveniles under 10 cm in length produce sounds from an early developmental stage.
Researchers captured underwater photos of seabirds, seals, and fish interacting with a small tidal turbine in Washington State. The study provides valuable information on the impact of tidal turbines on marine life. Marine animals were observed swimming, feeding, and even playing around the turbine
Researchers from Shedd Aquarium tracked queen conch movements to estimate the space needed to protect breeding populations. The study suggests establishing a 330-meter spatial buffer around breeding areas to help protect conch populations and serve as a practical tool for local management.
A new study reveals that seasonal seabird nesting concentrates tiger sharks in specific areas, forcing other species to shift their habitat use to avoid predation. The presence of fledgling seabirds influences the behavior of apex predators, including gray reef and Galapagos sharks.
A new study by the University of Oxford and WCS reveals that connections between coral reefs can stabilize reef health, reducing the risk of collapse. By simulating future reef conditions under different management scenarios, researchers found that a dual approach improving land and sea conditions provides the best outcomes for reefs.