Articles tagged with Lakes
A team of researchers led by Alena Gsell tested four statistical indicators to predict regime shifts in lakes. While some indicators showed promise, predicting crisis points was not always successful. Collecting more frequent and advanced data could improve early warning systems for lake ecosystems.
A Martian ice deposit, Utopia Planitia, contains approximately as much water as Lake Superior, spanning over 2,050 miles in diameter. The deposit is estimated to be around 260-560 feet thick, consisting of 50-85% water ice.
Researchers have developed an integrated model that connects atmospheric and lake body interactions, enabling feedback between variables. This two-way coupling approach simulates hydrodynamics of the Great Lakes region with high resolution, providing a more nuanced view of regional climate change.
New research suggests that Lake Champlain may be more susceptible to climate change-induced damage than previously thought. The study's findings indicate that the current pollution standards may not be enough to prevent worsening algae blooms and water quality problems.
The Freshwater Lab, a University of Illinois Chicago-based environmental research and policy center, has been awarded grants to host a Great Lakes mayoral summit. The summit will bring together diverse Great Lakes mayors to collaborate on urban water priorities and build an alliance with the Midwest academic research community.
A new study reveals that climate change and water resources development contributed significantly to the decline of Iran's Lake Urmia. The annual flow of water into the lake dropped by 48%, with 60% attributed to climate changes and 40% to human water usage.
Researchers have discovered a huge magmatic lake, 15 kilometers below a dormant volcano in Bolivia, which could help explain why and how volcanoes erupt. The find suggests that similar bodies of water may be 'hiding' under other volcanoes.
Researchers found four new chromosome rearrangements unique to the Caucasian population of Glyptotendipes salinus, which are distinct from previously studied populations in Altai and Kazakhstan. The larvae were also found to be twice as short than those in other regions.
Chinese scientists have designed a solid composite membrane that mimics biological ion channels with molecular sieve technology to effectively separate lithium ions from contaminants in brines. The approach allows for fast lithium ion flux and selectivity over other ions, making it a promising method for improved lithium extraction.
The Jefferson Project at Lake George will complete its 41-sensor network, collecting real-time data on lake water quality and circulation. The project aims to improve knowledge of the lake ecosystem and support effective protection for generations to come.
A recent study estimated lake-wide fungal diversity for the first time and found that each habitat type has a distinct community, with biofilms being hotspots for aquatic fungi. The research highlights the importance of considering habitat heterogeneity when assessing fungal diversity in water bodies.
The University of Montana's Flathead Lake Biological Station has been awarded a $2 million grant to explore the diversity of insects, crustaceans, and other arthropods in river floodplains. The project aims to assess the genetics, populations, and functional trait diversity among floodplain arthropods using novel genomic tools and mode...
A new study identifies urban expansion as the historical cause of low oxygen conditions in European lakes, with increased waste water pollution boosting biological productivity and leading to a rise in oxygen consumption.
Glacial lakes in Bolivia are increasing in size, posing a threat to communities and infrastructure downstream. The study found that glacier recession could lead to glacial lake outburst floods, which have already occurred in the region, causing devastating effects on villages and farmland.
Researchers have tracked 48 volcanic hotspots on Io's surface over a 29-month period, capturing heat coming off active eruptions and lava flows. The observations reveal that most eruptions occur on the trailing face of Io, with some appearing to progress across the surface over time.
A study found that community-based management of freshwater lakes in the Amazon can significantly boost arapaima populations, offering both food security and income for local communities. The approach, which includes local stewardship and enforcement, has been shown to be effective in replenishing depleted fish stocks.
A single season of intense melting in Antarctica in 2001-2002 provided clues to the future of the continent. The study examined the impacts on two vastly different Antarctic ecosystems, including changes in microbial food webs and penguin populations.
A study by Ohio State University and The Nature Conservancy reveals that protecting Lake Erie's streams will require substantial conservation efforts, particularly in reducing phosphorus, nitrogen, and sediment runoff. The research uses computer modeling to gauge the impact of various conservation scenarios, highlighting the need for t...
Researchers will study zebra mussel populations in three Texas lakes, focusing on growth rates, life spans, and impact on lake productivity. The goal is to understand causes of population collapses and inform management strategies.
An international study led by KU Leuven found that climate change is increasing the frequency of hazardous thunderstorms over Lake Victoria at night. The lake's unique atmospheric circulation, fueled by warm land breezes and evaporative cooling, creates a hotspot for storm activity.
Research from York University finds that climate change is exacerbating the decline of walleye populations in Ontario lakes due to the invasion of competitive smallmouth bass. The study predicts a significant increase in co-occurrence of the two species by 2070, posing a major threat to walleye survival.
A new study shows that dramatic environmental changes in Lake Malawi's water levels and clarity likely drove the diversification of hundreds of cichlid species. The researchers found alternating periods of deep and shallow water, which created new habitats for fish to adapt into.
Research in Japanese lakes reveals an increase in lead contamination since 1900, contradicting the global trend of declining lead emissions. The study suggests that industrialization in East Asia is a significant source of trans-boundary lead pollution affecting Japan.
Rensselaer Polytechnic Institute researchers develop a model to forecast the impact of rising temperatures on lakes' carbon cycle, with potential implications for global warming. By analyzing 2,000 lakes across the US, they aim to understand how lakes will respond to changing weather patterns and emissions.
A new study published in Climate Dynamics suggests that early-onset spring models may indicate a 'nightmare' for agriculture in the affected regions. The analysis of climate model data shows an increased frequency of nearly one in every three years by the end of this century.
A new study by University of Vermont scientists contradicts the long-held belief that students flushing unused medications down the drain contribute significantly to pharmaceutical pollution. Instead, research found that excretion and other sources, like pharmaceutical manufacturing, are much more important contributors to wastewater.
A University of Alaska Fairbanks-led study measures methane release from Arctic permafrost, finding nearly no sign that it has begun, despite projections of large emissions in the future. The research suggests current rates are still below expected levels, but warn of a significant threat to global carbon levels.
Researchers used ancient DNA to investigate the ecosystem of an ice-free corridor, concluding that it was biologically unviable until around 12,600 years ago. This challenges the established theory on human migration to America, suggesting that early inhabitants likely took a different route.
Researchers from the University of New Hampshire have developed a geospatial approach to better understand the roles of pre-European archaeological monument sites in Michigan. By utilizing a modeling technique called Maximum Entropy, they were able to identify the distinct niches occupied by burial mounds and circular earthwork enclosu...
A new report by an international team led by a University of Arizona geoscientist shows that Lake Tanganyika's fishery productivity has been declining since the 19th century due to global warming. The lake's algae, which serves as a food source for fish, has also decreased in abundance.
A new virus, largemouth bass reovirus, has been discovered in association with a 2015 fish kill in Pine Lake, Wisconsin. The virus is a distant relative of known pathogens and makes the species a key suspect in fish mortality.
Researchers have accurately dated the extinction of woolly mammoths on St. Paul Island to 5,600 years ago using fungal spores and sediment DNA. The study found that freshwater limitation contributed to their demise, highlighting the vulnerability of small island populations to environmental change.
Researchers link the extinction of isolated Alaskan mammoths to a lack of access to fresh water and rising sea levels. Analysis of sediment cores reveals declining lake levels and water quality leading up to the extinction event.
Genomic research by UCLA scientists finds that the gray wolf is not a separate species from coyote but rather a hybrid of the two. The study suggests that the gray wolf should retain its endangered species status due to incorrect justification for removal.
A new study of fossil fishes from Middle Triassic sediments on Lake Lugano finds that biological communities recovered within a few million years after the great mass extinction event. The research identifies two new species of ancient fish with distinct ecological niches, suggesting that ecosystems were already recovering.
Researchers collected unique data set after 2014 South Napa earthquake, showing afterslip concentrated in loosely packed sediment. This helps address question: Can geology be used as proxy for fault behavior? The findings have significant implications for earthquake hazard models and planning response.
A new Northwestern University study shows that infants can discern between categories as early as 9 months old, depending on the names used to describe them. This finding highlights the impact of language on cognitive development, suggesting that naming influences the identification of discrete categories in infants.
Researchers directly measure real-time rock cracking and model sun-driven thermal stresses. They conclude that slow cracking by daily solar forces represents the majority of rock breakdown over deep geologic time. Rare events like freezing contribute to rapid crack growth, but only briefly surpassing the 'tortoise' effect.
Phosphorus pollution remains a major concern globally, with 40% of Europe's lakes failing to meet water quality standards due to high levels of phosphorus. Effective lake restoration approaches are needed to address this issue and protect biodiversity and society.
Researchers have uncovered a well-preserved fossil of a previously unknown bird species, Calciavis grandei, dating back to the Eocene epoch. The discovery sheds light on the evolutionary history of large flightless birds and provides new anatomical data for resolving contentious debates among paleontologists.
Evolutionary biologists confirm sympatric speciation in cichlid fish in Apoyo and Xiloá lakes through genetic analysis, ruling out third model. The study used 20,000 characteristics to document parallel evolution of four to five species over 1,000 years.
The 66th Lindau Nobel Laureate Meeting concluded with a discussion on scientific education and the role of innovation in science. The event aimed to stimulate interest in STEM subjects among young people, with a focus on raising education standards in developing countries.
The 66th Lindau Nobel Laureate Meeting brings together 29 Nobel laureates and over 400 young scientists from 80 countries to discuss physics and quantum technology. The meeting aims to inspire and connect the next generation of scientists through knowledge transfer and collaboration.
David W. Schindler, renowned limnologist, receives the SETAC Rachel Carson Award for his work on laundry detergent phosphates and eutrophication. His research has led to policy changes worldwide.
Researchers found that permafrost beneath shallow Arctic lakes is warming due to warmer winters and increased snowfall, leading to sub-lake permafrost thaw. This phenomenon is similar to terrestrial permafrost thaw but occurs sooner due to lakebed temperatures rising above freezing.
A recent study found that invasive Bighead and silver carp species avoid areas with CO2-infused water, reducing movement and behavior. The researchers tested the effectiveness of infusing water with recycled CO2 gas to deter carp movement.
Researchers have found that Antarctic lakes are repositories for ancient soot from wildfires, dating back over 2,500 years. The study also indicates a more recent increase in dissolved black carbon from fossil fuel burning, which may be caused by helicopter emissions or long-range transport of carbon.
Scientists have discovered former subglacial lakes in Alberta, Canada, providing insights into lake formation and drainage beneath the ice sheets. The findings offer key constraints for modeling similar lake drainages beneath Antarctica and Greenland, crucial for understanding their impact on ice flow.
Researchers found that Lake Michigan painted and snapping turtles carry all eight metals, with concentrations correlating with soil assessments in the wetlands. The turtles' long lifespan and position in the food chain make them useful indicators of wetland pollution, potentially posing a health risk to humans who consume them.
A series of studies published in Water Research assesses the ecological and chemical responses to geo-engineering in lakes. While some case studies report dramatic improvements, others show little effect or short-lived responses. The approach is promising when used correctly, but its potential side effects are not well understood.
The iSimangaliso Wetland Park is home to a rich biodiversity of water beetles, with 68 species collected from temporary freshwater ponds. These tiny ecosystems are crucial for maintaining wetland health and can serve as indicators of pollution levels.
Researchers aim to develop optimum alarm systems by analyzing alarm errors and predicting their occurrence. The new models will prioritize alarms that reflect urgent situations while balancing staff alertness with patient recovery concerns.
A new study from the University of Utah has dated the Sentinel rock avalanche to 4,800 years ago, estimating its size and dynamics. The landslide created a flat floor for 700 years, covering an area larger than New York City's Central Park with debris.
Researchers at Penn State tracked the cause of a loud noise made by a type of golf club and found it was due to vibrations in the club head. The vibrations were strongest in the most sensitive range of human hearing, leading to an annoyingly loud sound that some players compared to a cookie tray hitting a car.
Researchers are studying the lowest vocal register, called vocal fry, to better understand its emotional properties and how it affects listeners. The technique has become popular in pop and country music, with female singers' use of vocal fry rating them as more expressive.
Scientists reconstruct ancient precipitation patterns in Greenland using aquatic plant leaf waxes, finding evidence of increased snowfall from 6,000 to 4,000 years ago. This trend is consistent with the hypothesis that global warming could drive Arctic snowfall increases, slowing ice sheet shrinkage and sea level rise.
TSU researchers developed an ecological method for cleaning lakes from oil, which reduces oil content in water by 35-40 times. The technology uses a flotation method to remove oil from both sediments and water without using chemicals.
A Dartmouth College study finds that both prey type and quality affect mercury accumulation in fish, with bottom-dwelling prey accumulating less mercury due to higher calorie content. Fish feeding on plankton in open water accumulate more mercury, leading to lower growth rates and higher concentrations in their tissues.
Researchers tracked over 2,000 juvenile salmon on their 1,000-kilometer journey to the Pacific Ocean. The study found that survival rates increased significantly when salmon traveled in large groups, confirming the 'safety in numbers' strategy for avoiding predators.
A new study links climate warming to increased algal growth in the Athabasca oilsands region of northern Alberta. Researchers found a stronger link between warmer air temperatures and algal production, rather than industrial nutrient fertilization.