Articles tagged with Eutrophication
A new method to extract phosphorus from the Baltic Sea could reduce Europe's dependence on imported phosphate mining, revitalizing the ecosystem. Researchers at KTH Royal Institute of Technology have developed a two-step approach using microbes to loosen and bind phosphorus.
Scientists differentiate between human-derived and hydrological contributions to riverine nitrogen pollution, finding that about half of the increase in nitrogen loss is due to human activity. The study suggests tailored solutions for different regions, focusing on reducing fertilizer inputs and managing precipitation.
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.
UCSB researchers warn that the ocean's cumulative impact will double by 2050 due to climate change and human activities. The tropics and poles are expected to experience the fastest changes in impacts, with coastal areas bearing the brunt of the increased pressures.
A new study revisits forecasts made in 2002 about the world's rocky shorelines, finding some threats have materialized while others have not. The researchers highlight the importance of addressing issues like ocean acidification and plastic pollution to protect coastlines.
Researchers found that corn-soy rotation boosts corn yields and reduces nitrogen fertilizer needs, but with trade-offs in soil greenhouse gas emissions and nitrogen leaching. The study's results suggest a complex interplay between crop yield, environmental impacts, and economic returns under various rotation scenarios.
The world's freshwater lakes are freezing over for shorter periods due to climate change, affecting more than a billion people worldwide. Changes in ice duration have major implications for human safety, water quality, biodiversity, and global nutrient cycles.
A new water quality analysis technique can detect organic chemicals in rivers and lakes, identifying their source and predicting their impact. This method uses high-resolution mass spectrometry to analyze water samples within an hour, providing a comprehensive overview of all organic molecules present.
Researchers studied Prorocentrum cordatum to understand its molecular processes, revealing a unique photosynthetic machinery that may help it adapt to changing light conditions. The findings could lead to improved understanding of harmful algal blooms and their role in climate change.
A study reveals that nitrogen plays a crucial role in phytoplankton growth in shallow lakes worldwide, contradicting traditional limnological consensus. The research team analyzed data from 159 lakes and found that 60% exhibit dual-nutrient limitation, where both phosphorus and nitrogen affect phytoplankton growth.
A study from Chalmers University of Technology found that the production and use of ammonia as a marine fuel can lead to eutrophication, acidification, and emissions of potent greenhouse gases. Researchers warn that the pursuit of low-carbon fuels may create new environmental challenges.
Researchers at Concordia University have developed a system of floating geotextile filters that efficiently remove suspended solids, algae, and nutrients from shallow lakes. The study shows promising results in lake water remediation, with the potential to scale up and benefit larger bodies of water.
A UH-led research team has developed a cost-effective method for removing harmful chemicals and heavy metals from coastal waters by utilizing native aquatic plants. The system, which includes floating aquatic plants and synthetic mats, can help restore ecological balance and keep communities healthy.
Researchers found that simultaneously acting global change factors decrease grassland plant community diversity, regardless of individual factor quality. This effect is linked to increased biomass production due to the influence of highly influential factors like eutrophication.
A field experiment shows that competition for light drives the decline of plant diversity in grasslands under eutrophication and lack of grazing. Adding light to low-growing plants reduces this loss.
Researchers at Radboud University found that using Phoslock can reduce methane emissions by up to 74% and dredging by approximately 52%. These methods target eutrophication, a key driver of methane production in lakes.
Researchers found evidence of declining nitrogen availability in various ecosystems, including grasslands and forests, due to multiple environmental changes. The decline is linked to increased atmospheric carbon dioxide levels and reduced plant growth, with implications for the global carbon cycle.
Mariculture has the potential to deliver high-protein foodstuffs with a significantly reduced carbon footprint compared to terrestrial products. The authors suggest various ways to improve mariculture's sustainability, including supply chain improvements and cofarming practices that can lead to net reductions in CO2 emissions.
Researchers investigated molecular characteristics of DOM pool in Xiangshan Bay, a semi-enclosed coastal bay in China. They found terrestrial signals decreasing with increasing salinity due to seawater dilution effect and anthropogenic inputs contributing to DOM cycling.
Monitoring of 235 Lake Michigan tributaries reveals that small and abundant tributaries have high nutrient loads, often in dissolved inorganic forms. These plumes can overlap and amplify the impact on water quality, suggesting that small tributaries could be a critical target for eutrophication mitigation.
Researchers used ancient Daphnia samples and modern-day organisms to understand how they cope with eutrophication events. They identified clusters of genes adapted to high phosphorus levels, shedding light on evolutionary responses to environmental change.
Researchers found that hybridization during eutrophication led to an expansion in biodiversity of the European whitefish species once the ecosystem recovered. This rapid niche expansion was made possible by genetic variation, demonstrating functional variation can quickly recover after ecosystem restoration.
A new study reveals that clothing, furniture, and other non-food products are significant contributors to ocean and freshwater pollution. The researchers used a modeling tool to calculate country-specific 'eutrophication footprints', which show that the EU's non-food consumption primarily generates pollution in other regions.
Researchers from Kumamoto University and VIMS used sediment samples to evaluate the effectiveness of marine anammox bacteria in removing excess nitrogen. The study found that adding a bicarbonate supplement and high nitrogen content was necessary for anammox bacteria to thrive, and that symbiotic relationships between other microorgani...
A new study predicts that US water quality will worsen due to climate-driven changes in precipitation, leading to increased nitrogen pollution and the formation of harmful algae blooms and dead zones. The Midwest and Northeast are expected to be particularly affected.
Increased precipitation from climate change will substantially overload U.S. waterways with excess nitrogen, leading to eutrophication and harmful algal blooms. The Midwest and Northeast are expected to be particularly affected, with a one-fifth increase in nutrient pollution by the end of the century.
A 37-year experiment on Lake 227 found that controlling nitrogen levels does not correct polluted lakes and may exacerbate the issue. The study's results contradict EU practices and previous research, highlighting the severity of cultural eutrophication globally.
Excess nitrogen and phosphorus from farming activities cause eutrophication, creating a food web that imperils frogs. A parasite, Ribeiroia ondatrae, infects tadpoles, causing deformities.