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UrduOnce Sargassum deluges beaches, removing, disposing and repurposing the seaweed presents many logistical and economic challenges. Cleaning up these huge piles of annoying seaweed while protecting these critical habitats at the same time is a precarious struggle.
Tag: Seaweed
Perfect ‘Pathogen’ Storm: Vibrio Bacteria, Sargassum and Plastic Marine Debris
Little is known about the ecological relationship of Vibrio bacteria with Sargassum. Evidence also is sparse as to whether vibrios colonizing plastic marine debris and Sargassum could potentially infect humans. As summer kicks off and efforts are underway to find solutions to repurpose Sargassum, could these substrates pose a triple threat to public health? Results of a study representing the first Vibrio spp. genome assembled from plastic finds Vibrio pathogens have the unique ability to “stick” to microplastics, harboring potent opportunistic pathogens.
Methane breath testing for a better future
A University of Adelaide-led study will investigate if mixing a variety of compounds, including biserrula, into cow feed that contains seaweed, can reduce the amount of methane produced by livestock.
Woods Hole Oceanographic Institution receives Seagriculture Innovation Awards
Woods Hole Oceanographic Institution (WHOI)-led teams earned Gold and Silver Innovation Awards for seaweed solutions projects, presented at the first annual Seagriculture Conference USA 2022 in Portland, Maine.
UF research shows a step toward restoring sea urchins: ‘The lawnmowers of reefs’
Scientists, including Josh Patterson from the University of Florida, are stepping up efforts to enhance populations of the long-spined sea urchin – known scientifically as Diadema antillarum to support coral reef ecosystems.
Water Quality Woes in Southwest Florida Linked to Seeping Septic Systems
From fecal bacteria to blue-green algae to red tides, Southwest Florida’s water quality has declined as its population has increased. Multiple lines of evidence from a multi-year microbial source tracking study points to septic systems as a contributing source for this decline. The study is one of few to connect downstream harmful algal blooms with nutrient loading from upstream septic systems. These water quality issues are caused by aging septic systems installed in high densities in areas with shallow water tables. Septic systems may actually be sitting in groundwater during certain times of the year, which means that they cannot function properly.
Conserving coastal seaweed: a must have for migrating sea birds
As Australia officially enters winter, UniSA ecologists are urging coastal communities to embrace all that the season brings, including the sometimes-unwelcome deposits of brown seaweed that can accumulate on the southern shores.
Surge in Nitrogen Has Turned Sargassum into the World’s Largest Harmful Algal Bloom
Scientists have discovered dramatic changes in the chemistry and composition of Sargassum, floating brown seaweed, transforming this vibrant living organism into a toxic “dead zone.” Results suggest that increased nitrogen availability from natural and anthropogenic sources, including sewage, is supporting blooms of Sargassum and turning a critical nursery habitat into harmful algal blooms with catastrophic impacts on coastal ecosystems, economies, and human health. Globally, harmful algal blooms are related to increased nutrient pollution.
UNH Researchers Find Climate Change and Turf Seaweed Causing “Patchy” Seascape
Researchers at the University of New Hampshire find that environmental developments caused by climate change are contributing to the transformation of the seafloor to a lower, more patchy seascape dominated by shrub-like seaweed which could impact species habitats and the structure of the food web.
Red Algae Thrive Despite Ancestor’s Massive Loss of Genes
You’d think that losing 25 percent of your genes would be a big problem for survival. But not for red algae, including the seaweed used to wrap sushi. An ancestor of red algae lost about a quarter of its genes roughly one billion years ago, but the algae still became dominant in near-shore coastal areas around the world, according to Rutgers University–New Brunswick Professor Debashish Bhattacharya, who co-authored a study in the journal Nature Communications.