Articles tagged with Lakes
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A recent study by the University of Adelaide found that K'gari's largest lakes dried out around 7,500 years ago due to a strong drying event. The researchers also discovered that wind patterns may have influenced rainfall on the island, putting its lakes at risk of drying again in the future.
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.
Researchers at the University of Texas at Austin have mapped Mars' large river drainage systems, outlining 16 areas where life could have existed. These systems are crucial for understanding Martian habitability and potential past life.
A new project at FAU aims to advance water quality monitoring in Lake Okeechobee by understanding how common contaminants break down after being released into freshwater environments. The team will deploy passive sampling devices and use cutting-edge chemical analysis to predict which contaminants are forming dangerous byproducts.
New research reveals that lake littoral zones store more carbon than previously thought, highlighting the need for inclusion in global carbon budgets. By including these zones, lakes may switch from being net carbon sources to net carbon sinks.
Despite poor health scores for England's rivers, independent review reveals important improvements in freshwater biodiversity, including increases in species richness and diversity. An alternative monitoring standard has been proposed to better reveal the status of different species and inform local decisions.
A new study by the University of Cambridge found that seaside and blue-colored places are more likely to evoke feelings of nostalgia in people. The research suggests that these environments have visual properties that contribute to positive emotions, including 'fractal property' and high contrast.
New research reveals that lakes relying on groundwater connections maintain stable water levels and buffer climate change impacts. Shallow lakes are vulnerable to rising temperatures and reduced rainfall due to high evaporation rates.
Research reveals rainfall dramatically affects planktonic fungal communities in urban lakes, reducing species richness and evenness. Parasitic fungi emerge as key biomarkers, with changes in their abundance and distribution observed following precipitation.
A new study from the University of Michigan reveals that heat waves and cold spells on the Great Lakes have increased by more than 100% since 1998, coinciding with the strongest El Niño event. This trend has significant implications for the region's weather, economy, and ecosystems.
A new study finds that the Salton Sea emits hydrogen sulfide at rates exceeding state air quality standards, with emissions regularly going unreported by government monitoring systems. The presence of these toxic emissions poses significant health risks to local communities already burdened by environmental and socioeconomic stressors.
A study by University of California, Davis' Tahoe Environmental Research Center found large fluctuations in ultraviolet radiation between wet and dry years at Lake Tahoe. UV radiation penetrates deeply in clear waters like Lake Tahoe, affecting aquatic ecosystems and photosynthesis.
Researchers at University at Albany found a near full recovery from metal pollution in Adirondack surface waters since the enactment of the Clean Air Act. The study analyzed sediment samples and found a greater than 90% reduction in metal contamination across four ponds.
A new study maps the daily movement of cyanobacteria in Florida's largest freshwater lake, revealing how these harmful algal blooms form and behave. The research provides critical insights into managing the risks associated with cyanobacteria blooms.
A study found DDT residues in trout from Canadian lakes, with levels up to ten times the recommended safe limit. The persistence of these residues poses a risk to wildlife that consumes the fish.
Researchers found that nutrient hoarding by selfish bacteria influences carbon and nutrient availability in freshwater ecosystems. In two Croatian lakes, mesotrophic Crniševo Lake showed higher rates of selfish activity than oligotrophic Kozjak Lake.
Researchers at Chalmers University of Technology have discovered heavy methane emissions from Swedish lakes, posing significant environmental concerns. The findings suggest that these lakes may be contributing to the country's overall greenhouse gas emissions.
Scientists at University of Lausanne classify 35 commonly used drugs in Switzerland based on their ecotoxicity. The classification reveals that painkillers like diclofenac and antibiotics like ciprofloxacin have significant consequences for aquatic biodiversity.
Phosphorus is essential for life, but it's rare at Earth's surface. Large soda lakes can maintain high phosphorus concentrations through constant inflow and minimal evaporation. This creates an ideal environment for prebiotic chemistry, making these lakes a potential cradle of life.
A recent study reveals that climate warming and heatwaves are significantly reducing surface dissolved oxygen levels in lakes worldwide. The research found that 83% of studied lakes exhibited significant deoxygenation, with an average rate of decline exceeding that of oceans and rivers.
Researchers found that climate change affects lake ecosystems in complex ways, with abrupt changes in algal biomass detected in a third of tested lakes. The study suggests that climate interacts with human activities like agriculture and urban runoff, leading to more vulnerable lakes.
Swimming in lakes with still water can lead to infection with Legionella bacteria, causing pneumonia. Risk factors include age over 50, smoking history, and compromised immune systems. Clinicians should suspect legionnaires' disease in patients with severe pneumonia and recent travel history.
A study found that algal blooms increased significantly in global large lakes over the past two decades, particularly in subtropical regions. The median annual bloom frequency increased by +1.8% per year, with a stronger correlation between temperature fluctuations and bloom events.
A new study reveals that Chlorella Vulgaris, a freshwater microalga rich in protein and essential nutrients, holds immense promise as a sustainable and nutritious food source. The researchers emphasize the need for advancements in cultivation techniques, processing methods, and sensory improvements to enhance its appeal.
Researchers at Harvard University used photochemical modeling to simulate how ancient Mars' climate was affected by atmospheric chemistry and crustal hydration. They found that episodic warm spells were driven by crustal hydration, leading to the buildup of hydrogen in the atmosphere.
A new study published in Environmental DNA revealed that insecticides and fungicides are the main factors affecting biodiversity in UK waters. The AI technology analyzed water and biofilm samples from 52 freshwater lakes, identifying key links between pollutants and biodiversity loss.
A recent study found that extreme climate events in fall 2022 pushed thousands of lakes in West Greenland across a tipping point, leading to changes in water quality, chemical properties, and biodiversity. The lakes, which previously provided drinking water and sequestered carbon, now emit more carbon dioxide.
New research from PSU identifies lower streamflows as a contributing factor, while warmer temperatures led to significant increases in lake evaporation. The study suggests continued warming will exacerbate water loss, posing health risks and economic concerns for the region.
Researchers warn of the risks of spreading invasive species via untreated water transfers, which can move between different environments. The study highlights the need for coordinated surveillance and management plans to tackle this threat and conserve freshwater biodiversity.
A study published in Environmental Challenges suggests that reducing irrigation for livestock feed crops is necessary to save the Great Salt Lake. The lake has lost over 15 billion cubic yards of water and its levels are getting shallower at a rate of 4 inches per year.
A new study reveals that bacteria species in Lake Mendota rapidly evolve over time, responding to changing seasonal conditions. The researchers found that hundreds of separate species would return almost fully to near copies of their genetic predecessors after a thousand or so generations of evolutionary pressures.
A first-of-its-kind study from the University of Minnesota Twin Cities utilizes remote sensing technology to monitor plastic debris in freshwater environments like the Mississippi River. The research helps increase understanding of plastic debris behavior in these systems, shedding light on a growing environmental issue.
A recent study utilizing plant DNA metabarcoding identifies 186 terrestrial plant taxa on the Tibetan Plateau, surpassing traditional pollen analysis by 25%. The method provides a more detailed and localized perspective on vegetation monitoring and reconstruction.
A new study warns that Colorado's West Slope basins, supporting a $5 billion agriculture economy, face a potential tipping point due to drought vulnerability. The research suggests that even moderate climate change and streamflow declines can threaten water storage, agriculture, and municipal supplies.
Scientists at Helmholtz Centre for Environmental Research - UFZ have discovered chimney-shaped vents on the Dead Sea floor, emitting shimmering fluid. The chimneys are similar to black smokers but originate from surrounding aquifers, providing a new tool for predicting sinkhole formation.
The MEMELAND project will analyze sediments and soil in lakes across Europe to reveal how medieval farming shaped today's landscapes and biodiversity. The study aims to protect northern Europe's essential biodiversity by understanding the environmental changes that occurred during this period.
Researchers analyzed steroids from animal dung in lake sediments to determine the dominant large herbivores that lived in northern Yellowstone National Park. The study found bison and elk as primary species for the last 2,300 years, with impacts on local ecosystems.
Researchers uncover calcite precipitation as the key mechanism behind Lake Geneva's significant CO2 emissions. The discovery provides a new understanding of the carbon cycle in lakes and has implications for global warming efforts.
A study published in Biology Letters reveals that harbor seals in Alaska's Iliamna Lake are genetically isolated from other seal populations across the Pacific. The researchers found significant differences between the lake seals and marine populations, suggesting they may be a unique endemic form of harbor seal.
A study found that environmental factors like sea surface temperature, wave energy, and freshwater discharge have a greater impact on marine organisms' size and abundance than ecological processes. In colder waters, marine organisms are larger, with filter feeders growing up to 130% larger.
The Pantanal's soda lakes, characterized by high pH and salinity, have practically dried up due to rising temperatures and wildfires. The study found that certain types of lakes, such as eutrophic turbid lakes, emit methane due to cyanobacterial blooms and decomposing organic matter.
Researchers at Lund University found that grazing zooplankton and phytoplankton diatoms are severely impacted by nanoplastic particles, while cyanobacteria remain unaffected. The study's findings have significant implications for food chains and ecosystem processes.
The project aims to create a Great Lakes-focused microplastic action network using proven reduction strategies and new tools. It will empower communities to identify local pollution sources and mitigate microplastic pollution at a local level.
Scientists have developed a comprehensive evaluation of spatiotemporal fusion techniques for monitoring eutrophic lakes. By addressing processing and modeling errors, they can generate high-resolution data on chlorophyll-a concentration, providing guidelines for future studies.
Research by FAU Harbor Branch reveals that managing both phosphorus and nitrogen is crucial for tackling toxic cyanobacterial blooms in Lake Okeechobee. Human waste is identified as a major source of nutrients, with elevated nitrogen levels found in urbanized estuaries and the Kissimmee River.
Researchers found that existing estimates of invasive species in Wisconsin lakes were off by 500%, with some populations present for decades before impacting the ecosystem. Long-term research has provided valuable insights into the effects of invasive species and how to mitigate their impacts.
The peach blossom jellyfish, an invasive species from China, has been spotted in 34 locations in B.C., with predictions suggesting sightings and locations will increase by the end of the decade. The jellyfish clones are effectively identical, having originated from the same polyp or cluster of polyps.
A growing global understanding of drought's impacts, but significant gaps remain in affected communities and developing countries. Long-lasting droughts heighten awareness, while economic factors influence responsiveness to the issue.
Researchers found a choanoflagellate harboring its own microbiome, forming colonies that enclose bacteria and exhibiting a unique symbiotic relationship. This discovery sheds light on the origin of interactions between animals and bacteria in ancient oceans.
New research reveals a dangerous combination of warming waters and nutrient overload is degrading freshwater ecosystem functioning. This simplification leads to shorter food chains and vulnerable top predators, emphasizing the urgent global need to reduce pollution levels.
A new study found that Lake Erie walleye growth is influenced more by the size and experiences of their parents than by recent environmental conditions. The study analyzed data from 1982 to 2015 and found that cold winters and larger mothers were associated with faster growth in offspring.
Researchers analyzed lake macroinvertebrate fauna, particularly chironomids, to reconstruct the lake's natural state. This helps establish a reference point for conservation purposes, as significant changes occurred during the economic boom and fish stocking.
A new study by Utah State University explores the potential of collaborative modeling to improve reservoir operations and adapt to variable inflow and declining storage. The research involved 26 Colorado River Basin managers and experts who used Google Sheets during video calls to discuss consuming, banking, and trading water.
Research by the Royal Ontario Museum identifies Great Salt Lake as a significant source of greenhouse gas emissions, with 4.1 million tons released in 2020. The study highlights the importance of considering desiccation of lakes and rivers in assessments of global greenhouse gas output.
A recent study predicts that lakes worldwide will experience unprecedented surface and subsurface warming, leading to severe disruptions in ecosystems. Tropical lakes are expected to be the first to emerge from natural temperature bounds, while high-latitude lakes may shield their subsurface layers from surface warming.
A global assessment found that nearly half of the world's largest lakes have lost resilience, with dense populations and pollution being major contributors. However, wealthier regions had healthier lakes, suggesting costly conservation efforts may pay off. Lakes in eastern North America and northern Europe were hit hardest.
Researchers find that restoring the Great Salt Lake would decrease dust exposure for all groups, particularly Pacific Islanders and Hispanic people, as well as reduce socioeconomic disparities. Average dust exposure during storms would drop from 32 μg/m³ to 24 μg/m³ with a healthy lake level.
Researchers used simulations to model the erosion of Titan's shorelines, finding that waves are the most likely explanation for the moon's lakes and seas. The team found that wave activity could have shaped the coastlines of lakes and seas on Titan.
The introduction of Nile perch to Lake Victoria led to severe population loss and genetic bottlenecks in local cichlid species. The study reveals that four species experienced a 'bottleneck event' resulting in reduced genetic diversity, highlighting the devastating impact of exotic species invasion.
A study found that nearly all US lakes were exposed to wildfire smoke for at least one day per year between 2019 and 2021. The researchers introduced a new metric, the 'lake-smoke day', to track smoke prevalence at lakes, which could help establish a baseline to better understand the extent of wildfire impacts.