Issue no. 163 - Eutrophication, Cyanobacteria, and Cyanotoxins Newsletter
From the Mainstream Media / Dans les médias grand public
“The treatment would use a sodium percarbonate-based algaecide.”
“Our capacity to cope with rapidly changing conditions within our aquatic ecosystems is simply being overwhelmed by the sheer magnitude of change on multiple fronts.”
“The crisis is thought to be caused by factors such as nitrogen and phosphorus from farm fertilisers seeping into the water, the spread of invasive zebra mussels, and climate change.”
Canada: Enhanced nitrogen fertilizer
efficiency adoption is low
“Most farmers decided the extra cost associated with using enhanced efficiency fertilizers is not worth the benefits the products provide.”
Florida, USA: Could floating flower gardens
be an answer to Miami’s polluted canals?
“FIU researchers are experimenting with "floating wetlands" to improve the water quality of Miami's canals.”
Iowa & Missouri, USA: Liquid nitrogen
mishap kills 750,000 fish in rivers
“A fertilizer spill at a farming cooperative has contaminated a nearly 50-mile stretch of river, killing 750,000 fish.”
China: Launch of major scientific and
technological projects in ecology and environment
“A nationwide agricultural non-point source monitoring network covering 175 monitoring areas has been established.”
Washington State, USA: ‘Very safe’ chemical
proposed for algal bloom prevention at Lacamas Lake
“Use of chemical to stop toxic algal blooms could begin in summer.”
Wisconsin, USA: Satellites Spotlight
Illegal Manure Spreading
“Researchers are using aerial imagery and artificial intelligence to monitor a farming practice that threatens water.”
‘Legacy
Phosphorus' Changing Thoughts on Nutrient Loss
“Sometimes, after a long time, you will get something called dissolved reactive phosphorus, which is phosphorus not attached to a soil molecule.”
From the Scientific Media / Des médias scientifiques :
Welcome to
the jungle!: An overview of modern taxonomy of cyanobacteria
“The relative ease of description of new taxa and the pressure to publish a high number of scientific papers has created apparent confusion. The situation is particularly complicated for ecologically oriented limnological research and practical hydrobiologists especially have numerous criticisms of this trend.”
Phosphorus
applications adjusted to optimal crop yields can help sustain global phosphorus
reserves
“More judicious use of phosphorus fertilizers to account for soil Olsen phosphorus can help achieve optimal production without accelerating the depletion of phosphorus reserves.”
“The results indicated that enhanced solar UV radiation may unintentionally stimulate cyanobacterial growth and favor the expansions of cyanobacterial blooms in lakes around the world.”
Correlation
Abundance Networks for analyzing biological interactions during cyanobacterial
blooms
“Analyzing correlation abundances networks should be a valuable tool for understanding the dynamics and development of cyanobacterial blooms, as well as identifying key species in this process.”
Compendium
of Metabolomic and Genomic Datasets for Cyanobacteria: Mined the Gap
“Linked to this manuscript, we make these manually curated datasets freely accessible for the public to facilitate further research in this important area.”
Dissertation:
The potential of wetlands for mitigation of eutrophication and brownification
“Efficient wetlands might mitigate eutrophication and brownification, but inefficient wetlands may instead exacerbate these environmental problems, harming downstream lake ecosystems by increasing nutrient and water color levels.”
“This comprehensive review explores the intricate aspects of cyanobacteria development in freshwater ecosystems, explicitly focusing on deciphering the signaling molecules associated with quorum sensing and their corresponding genes.”
Biological
approaches used to control the algal bloom formation in aquatic environments: A
Review
“The main objective of this review is to identify the capabilities of biological agents that can be used to mitigate and control algal bloom formation in aquatic environments.”
“We collected cyanobacteria slurry from Lake Jesup (Central Florida, USA), repurposed it as a biofertilizer, and incorporated it in a typical South Florida calcite soil for high-value okra.”
Geographic
Analysis of the Vulnerability of U.S. Lakes to Cyanobacterial Blooms under
Future Climate
“Results provide a national-scale assessment of where and in which types of lakes climate change will likely increase the overall risk of cyanobacterial blooms, rather than finer-scale prediction of expected cyanobacterial and toxin levels in individual lakes.”
Nitrogen and
phosphorus trends in lake sediments of China may diverge
“We therefore synthesize
nutrient data from lakes in China to reveal the historical changes and project
their future trends to 2100 using models.”
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