The study analyzed 450 years of herring catches in the Baltic Sea, finding that climate change, overfishing, and social change contributed to the fishery's collapse. An interdisciplinary approach reveals that considering ecological, economic, and social factors is crucial for sustainable fisheries management.
Researchers discovered a distinctive pattern in DNA polymerase genes from China's Napahai plateau wetland, suggesting the unique geography and environmental conditions of the wetland contribute to the genetic diversity of microbial communities. This finding raises the possibility that DNA polymerase genes could serve as biogeographical...
A study found six Alaska rivers' water chemistry changed due to thawing permafrost, releasing iron, sulfuric acid, and other metals. The effects were observed 60 miles downstream, with metal concentrations 70 times higher than in pristine areas.
A competition among biologists has identified 20 crayfish species with sizes larger than the rest, with the largest measuring 86.6mm. The findings suggest North American crayfish may be limited by their physiology, rather than environmental factors, sparking further research into their body size.
Researchers identified 33% of rivers and streams rated above-average for resilience, concentrated in Pacific Coast, Northern Rocky Mountains, and Great Lakes areas. Conserving 35% of waterways could sustain biodiversity, but only 6% is currently protected and resilient.
An international team reconstructed a 1,000-year timeline documenting human impact on the ecosystem surrounding Crawford Lake. The analysis of sedimentary ancient DNA samples revealed changes in plant, animal, and microbial communities over the centuries.
A new study led by Bigelow Laboratory for Ocean Sciences found moderate genetic diversity within sugar kelp populations in Maine's kelp forests, identifying four distinct populations shaped by oceanography. The findings highlight the importance of regional management strategies to protect and leverage this genetic resource.
Seaweed forests globally are experiencing rapid declines due to climate change, with an estimated 25 million hectares lost by 2050. Restoration efforts may not be enough to compensate for these losses, with tens of thousands of projects needed at a significant cost. The study highlights the need to focus on preventing habitat loss as a...
The Chesapeake Bay saw a 7% increase in underwater grasses in 2025, with gains in salty waters, reaching 89,385 acres. However, regional declines were observed, particularly in the Tidal Fresh Zone and Virginia tributaries due to invasive aquatic plant reductions.
Microplastics have been found throughout a protected Florida wetland, with concentrations highest along waterways. The study reveals that water movement plays a crucial role in transporting and concentrating microplastics within the ecosystem.
Researchers at the University of Maine discovered that planktonic baby lobsters preferentially feed on Calanus finmarchicus, a tiny, calorie-rich zooplankton species, during one of the most vulnerable stages of their lives. This finding is crucial to understanding fluctuations in the abundance of lobster larvae and future adult lobsters.
A world-first trial of floating wetland pods in wastewater lagoons shows significant greenhouse gas emissions reductions, with CO₂ emissions dropping by up to 36% and methane by up to 66%. The technology has potential to transform wastewater treatment into a climate solution.
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.
Irrigated mountain hayfields act as large filtration systems, reducing nutrient concentrations in runoff and improving water quality. This study found that voluntary adoption of best management practices can effectively mitigate the impacts of agricultural nutrient use in mountain meadow hay systems.
Research at Kyoto University's gardens revealed seven species of frog and one species of newt, highlighting the importance of culturally managed water features as habitats for urban amphibians. The study's findings emphasize the need to consider these sites as biodiversity hotspots, promoting coexistence with nature.
Deep-diving insect larvae have developed sturdy air sacs that control their buoyancy, defying the idea of oceanic insect extinction. Their unique respiratory system uses resilin to adjust air sac volume and pH, allowing them to thrive in extreme depths.
A new study has mapped Europe's wetlands, identifying peatlands as the most critical type to restore for climate benefits. The map provides a basis for assessing where wetland restoration could deliver benefits for climate and biodiversity.
Researchers found that anaerobic decolorization of RB5 dye by Clostridium sp. strain T4 increased acute toxicity, despite efficient color removal. The study highlights the importance of integrating subsequent aerobic or oxidative treatment to achieve further detoxification in azo dye-containing wastewater management systems.
A new study analyzes geographic biases in telemetry research, finding that most studies are conducted in politically stable, English-speaking countries with high conservation funding. The research emphasizes the need for in-country capacity sharing and collaboration to ensure biodiversity hotspots are not left understudied.
The EU-funded Sister Projects have released a joint white paper calling for strengthened EU action to protect and restore Europe's wetlands. The paper highlights the importance of wetlands in providing essential services such as water purification, flood regulation, and biodiversity support, while also identifying four strategic priori...
A new framework developed by IIASA researchers helps identify where conservation can prevent biodiversity loss and where restoration efforts are likely to have the greatest impact. The framework integrates ecological thresholds with protected area coverage to assess how upstream pressures affect downstream fish communities.
Researchers found that wood frogs' adaptation to salty water increases their vulnerability to ranavirus, a common and fatal disease. The study highlights the hidden costs of survival in wildlife under environmental stress.
The study highlights the significant demand for brachyuran land crabs, with species being sold on e-commerce platforms like eBay, and often without welfare advice. The research aims to inform conservation and policymaking efforts by understanding the extent of the trade.
A global analysis of fish biodiversity in rivers reveals that warmer climates and larger catchment sizes are associated with increased biodiversity. However, human activity weakens this relationship, particularly in smaller river catchments. The study demonstrates the potential of environmental DNA as a tool for rapid, large-scale biod...
Researchers tracked Arabian Sea humpback whales' movements, revealing the first direct evidence of a whale crossing the Arabian Sea. The study found that these whales have adapted to their habitat in a unique way, deviating from traditional migration patterns.
Researchers developed a mathematical formula to estimate microplastic mass and size concentrations from limited data, enabling more efficient surveys. The new approach allows for the estimation of small microplastics often overlooked in field surveys, which can help track pollution sources and trends.
Researchers identified tens of millions of small wetlands globally and found they produce a significant impact on methane emissions. Small wetlands have been difficult to detect due to their size, but high-resolution satellite imagery has revealed their substantial contribution to the world's total non-forested wetland emissions.
A study reveals that the Arctic Ocean's chemical makeup is disrupting its food chain due to a sharp decline in nitrate levels, vital for plankton growth. The nutrient's removal limits life support for the ecosystem, with far-reaching consequences for marine ecosystems and carbon storage.
Researchers have developed a technique to analyze DNA from water samples to track species, detect pollution, and monitor ecosystem health. The technology identifies DNA from various organisms, including fish, amphibians, mammals, and even leatherback sea turtles.
A study by University of Essex and NOAA Fisheries reveals that young Californian Chinook salmon are struggling due to extreme weather and habitat destruction. The research found that juvenile salmon thrive in wet conditions but face high mortality rates during winter storms, leading to 'river ghosts' dying unseen
A recent study by Chinese researchers has quantified lake carbon dioxide emissions in China, finding a significant increase of 24% over the past two decades. The study highlights the importance of high-resolution monitoring to refine lake carbon budgets and inform effective climate mitigation policies.
A new study reveals that freshwater fish are accumulating antidepressants, opioids, and other drugs of abuse in their bodies, which can alter their behavior, development, and reproduction. The research uses a novel analytical method to detect these substances in small fish living in rivers receiving urban wastewater.
The US Nature Assessment Report documents human impact on nature, including resource extraction and habitat loss, but also shows restoration and Indigenous stewardship approaches can help turn things around. The report highlights the importance of farmer involvement in protecting ecosystems and preserving biodiversity.
A study from the University of California, Davis, reveals that managed wetlands in Suisun Marsh produce 11-22 times more zooplankton than tidal habitats. Zooplankton are crucial for fish diets and increase in response to controlled floods.
Researchers at Tongji University have discovered that ferrihydrite is a highly effective mineral in trapping chromium and storing organic carbon. This finding has significant implications for environmental remediation, enabling the development of nature-based solutions to clean up contaminated mine soils while sequestering carbon.
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.
A recent study on the 2021 North American heat wave reveals that some species, such as sea lettuce, were able to withstand the extreme temperatures, while others, like mussels and blueberry plants, suffered severe declines. The research highlights the importance of understanding these differing effects to prepare for future heat waves.
A recent study co-authored by NAU researchers found that fires in northern Canada have a net cooling effect when coupled with snowpack, but this is outweighed by the warming effects of permafrost carbon released from fires in Alaska. This highlights the need for land and fire managers to reconsider how wildland fires are managed.
A computer model identifies potential threats to over 10,000 freshwater species worldwide, offering a cost-effective way to safeguard species before they become endangered. The tool analyzes 52 variables, including damming, pollution, and habitat degradation, to recognize ecological patterns that benefit multiple species at once.
A new study explores how artificial lighting at night shapes ecological and genetic patterns of two closely related isopod species, Ligia laticarpa and L. furcata, in Tokyo Bay. The research reveals a clear ecological boundary between the two species, consistent with patterns of urban illumination.
Researchers warn that public fountains can be a breeding ground for aerosolized pollutants, posing significant risks to human health. With an estimated 30% of visitors being children, the risk of fountain-related illnesses is particularly high.
Researchers have developed a new method for cleaning oil spills using massive fire whirls, which can burn through crude oil nearly twice as fast as in-situ fire pools. The results show that fire whirls produce 40% less soot and consume up to 95% of the fuel, leaving fewer harmful particles behind.
A UT San Antonio assistant professor is studying how climate change and urbanization affect freshwater ecosystems by tracking the expansion of exotic tropical fish species into northern regions. The project aims to provide practical tools for natural resource managers to protect Texas waterways.
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.
McGill researchers found that freshwater browning is stunting some fish species' growth, shrinking others' populations, and altering fish communities. This phenomenon has broad impacts on biodiversity, affecting economically important fish species such as northern pike and walleye.
New research from Simon Fraser University finds that Canada is failing to monitor the health of Pacific salmon populations, with 44% lacking sufficient data. The decline in monitoring is particularly concerning as salmon face the dual threat of climate change and industrial projects set to be fast-tracked by the federal government.
Florida Atlantic University's College of Engineering has received a $600,379 grant to advance technology targeting harmful algal blooms in Florida's waterways. The project aims to develop novel 3D-printed adsorbent materials for efficient phosphate removal.
Penguin populations off South Africa have declined drastically due to collapsing food supplies, with some species facing an estimated 62,000 breeding individual losses. The study suggests that sardine biomass has fallen below a quarter of its peak levels in 17 years, posing a significant threat to the long-term survival of these birds.
Professor John Smol of Queen's University is being honored for his groundbreaking contributions to identifying stressors of environmental change in the Arctic. He has developed tools for detecting environmental shifts in freshwater and terrestrial ecosystems, providing key insights into the impact of global warming and human activities.
A research team led by Göttingen University found that urban blue spaces play a critical role in food security and social inclusion in four major Indian cities. Women, the elderly, and marginalized communities most frequently collected, shared, cooked, and sold food products.
The project aims to quantify the link between water conditions, fish populations, and wading bird nesting success in the Florida Everglades. Researchers will collect data on aquatic prey and habitat conditions during the dry season to provide essential insight into restoration efforts.
A new study reveals that many Western river networks in arid areas may be soaking up more carbon dioxide than they emit, challenging the long-held assumption of net emissions. This finding has significant implications for understanding the global carbon cycle and managing CO2 levels.
A University of Houston biologist has received a $2.16 million federal grant to study how some coastal frogs survive in salty environments. The research could reveal how cells cope with salt stress and have implications for understanding the health risks of high-salt diets in humans.
Researchers have developed a practical and affordable method for assessing the state of river ecosystems by using different substrates such as marble tiles, alder leaves, and cotton strips. The study found that these materials can provide valuable information on the condition of rivers and help address pollution.
A long-term study in the White Mountains of New Hampshire found that recovering forests are using roots to mine minerals for nutrients, leading to improved stream pH but depleted soil fertility. This process enhances mineral weathering, which can make forests more vulnerable to future pollution.
A new international study reveals that nitrogen fixation occurs beneath Arctic sea ice, increasing available nitrogen for algae and potentially boosting marine life. This discovery could also impact carbon absorption in the Arctic Ocean.
Researchers found that communities with green infrastructure systems like rain gardens saw a notable reduction in cadmium, copper, nickel, and zinc being sent into local waterways. Implementing more of these systems can improve water quality, make cities cooler, and enhance ecosystem services.
Research on threespine stickleback populations in lakes with and without sculpins reveals that ecological differences trigger the evolution of new species. The study shows that adaptation to different habitats plays a crucial role in speciation, even in geographically isolated populations.
A recent study found that light color affects phytoplankton growth and nutrient cycling in lake ecosystems. The researchers discovered that the less light available to microalgae, the more important the color of light became for their growth.
Climate-driven oxygen loss can trigger expansion of microorganisms producing methylmercury, a potent neurotoxin. Ancient DNA analysis shows similar processes occurred in the past; modern warming oceans risk similar conditions.