Podcasts about algal blooms

What happens after you flush? Most of us don't think about it—but maybe we should. In this eye-opening episode, we dive into one of the ocean's biggest but least discussed threats: wastewater pollution.Join us as we talk with Jos Hill, Program Director for The Nature Conservancy's Wastewater Pollution Program and creator of the groundbreaking podcast "waste(d)water." Jos reveals the shocking scale of this crisis: 80% of wastewater worldwide is inadequately treated, 58% of coral reefs are exposed to wastewater pollution, and wastewater accounts for a staggering 40% of coastal nutrient pollution—nearly as much as agriculture.Discover how even highly treated wastewater can devastate marine ecosystems, why coral disease outbreaks in the Florida Keys have been traced back to human gut pathogens, and how nutrient-rich wastewater is making coral reefs more vulnerable to marine heat waves and climate change.But this isn't just doom and gloom—Jos shares inspiring recovery stories from Kaneohe Bay in Hawaii and Tampa Bay in Florida, proving that when pollution is addressed, ecosystems can bounce back. Learn about innovative nature-based solutions, including treatment gardens that clean water while growing food for coastal communities.From the intersection of wastewater pollution and social justice to practical steps you can take in your own community, this conversation breaks the taboo around a topic that affects every person on the planet. As Jos reminds us: everyone goes to the toilet, so this issue is relevant to everyone.It's time to start talking about the dirty secret of ocean pollution—because we can't solve problems we won't discuss.Featured Guest: Jos Hill, Program Director, Wastewater Pollution Program, The Nature ConservancyLearn more: Check out the waste(d)water podcast and follow @wastedwaterpod wherever you listen to podcasts. 

Discovery comes as Riverkeeper launches monitoring tool On Sept. 10, the environmental group Riverkeeper launched a water quality portal with an interactive map that shows where it's safe to swim and fish in the Hudson River. It also indicates where sewage is more likely to overflow during heavy rains, the location of concentrated animal feeding operations (a frequent source of pollution) and the presence of bacteria that can form harmful algal blooms that are dangerous to people and pets. The timing, unfortunately, was perfect. Two days later, the Cary Institute of Ecosystems Studies in Millbrook announced that it had documented the largest harmful algal bloom (HAB) in at least 40 years of monitoring, stretching across the river from Kingston to Staatsburg. The discovery comes at the tail-end of a busy summer for blooms, with similar (although smaller) ones occurring elsewhere, including Beacon's Long Dock Park in August. Earlier this summer, Putnam County shut down 14 beaches due to blooms. "The algal bloom points out both the importance of having historic data" to monitor conditions and consider responses, said Tracy Brown, president of Riverkeeper, which is based in Ossining and Kingston. The nonprofit will soon update its portal to show the effects of climate change on the river. Pollution and stormwater run-off can cause HABs, but Chris Solomon of the Cary Institute, one of the researchers who discovered the large bloom, said its origins are not clear. He said it's likely that drought and warm water were involved, as they were in the creation of an HAB that appeared in Beacon's Melzingah Reservoir during the hot, dry summer of 2021. Both of those factors are likely to become more common in the Hudson Valley. "Increasing water temperatures, air temperatures and droughts are the things that are triggering the algal blooms we're seeing now," said Brown. "Climate change is here, and it's unfolding in real time." The surface area of the HAB near Kingston isn't its only notable feature, said Solomon. Blooms usually only form in slack water, so it's unusual to see one stretch out across the free-flowing river instead of hugging the shore. And the bloom is unusually wide and deep. "Anywhere we looked in the water column, the algae was quite dense," said Solomon. Satellite imagery taken earlier this week showed that the bloom has continued to grow. HABs can cause skin irritation, gastrointestinal symptoms and, in more potent cases, neurological damage and death. Riverkeeper partners with the National Oceanic and Atmospheric Administration to collect data for its portal, but NOAA, like many federal science agencies, has been targeted by the Trump administration for cuts. Senate Minority Leader Charles Schumer (D-NY) secured $250,000 to launch the portal, but Brown expects there may not be more funds coming. Earlier versions of the portal highlighted that "the open Hudson tends to be cleaner than a lot of the tributary rivers and streams," said Brown. "That flies in the face of people's assumptions. They think, 'Oh, this beautiful little stream going through my local duck pond is going to be nice to swim in as opposed to the big, nasty Hudson.' People were swimming in Rondout Creek in Kingston because they thought it would be cleaner than Kingston Point Beach, on the Hudson." The Riverkeeper portal is one of several new monitoring tools. This past summer, Bard College unveiled an air monitoring site and the Open Space Institute debuted maps that track how much carbon America's forests are sequestering. Riverkeeper's online portal is at data.riverkeeper.org. To report a Harmful Algal Bloom, see bit.ly/HABform or email HABsinfo@dec.ny.gov. The state also maintains a map of HABs at tinyurl.com/nys-hab-map.

An initiative petition to open Oklahoma primaries is moving forward.Leadership of the Oklahoma County Jail is facing another disturbance.Water supplies in towns across the Midwest are facing an increase in algal bloomsYou can find the KOSU Daily wherever you get your podcasts, you can also subscribe, rate us and leave a comment.You can keep up to date on all the latest news throughout the day at KOSU.org and make sure to follow us on Facebook, Tik Tok and Instagram at KOSU Radio.This is The KOSU Daily, Oklahoma news, every weekday.

Although healthy algae is an important part of aquatic ecosystems, the right conditions can…

Although healthy algae is an important part of aquatic ecosystems, the right conditions can promote the growth of dangerous types of algae. These harmful algal [AL-gull] blooms are most likely...

A federal Senate inquiry into South Australia's rolling algal bloom crisis has started to hear from the public to detail the full impact of the environmental catastrophe.

In today’s deep dive, an algal bloom in Mattoon's water reservoirs forced the city to place a do-not-drink order in place this earlier this summer.

There should be more urgency and a bigger budget to tackle TB in cattle in England while farmers should be empowered to do more to eradicate the disease. Those are headlines from a new report published today. It also calls for a bovine TB tzar to co-ordinate government policy along with investment in IT systems, vaccination and testing. We hear from the report's author, Professor Sir Charles Godfray, the Badger Trust and the National Farmers' Union.The blue green algae on Lough Neagh has had a big impact on residents and businesses this summer.Researchers say racism in rural areas is often not reported but has a profound impact on people who visit and live in the countryside.A wet winter and dry spring meant cereal crops were hard to sow and grew slowly. The result, straw short in stature and in short supply, so greater costs for livestock farmers.Presented by Charlotte Smith and produced by Beatrice Fenton.

An algal bloom is a rapid increase in the density of algae in an aquatic system.  Harmful algal blooms occur when bodies of water get overloaded with nitrogen and phosphorus runoff from agriculture and other human activities. These excess nutrients can facilitate the out-of-control growth of cyanobacteria, also known as blue-green algae.  Some species of […]

Today's episode is one of the more encouraging and hopeful conversations I've had the pleasure of recording. My guest is Sam Baker, co-founder of WriggleBrew, a company on a mission to combat one of the most insidious environmental issues we face today: toxic algal blooms.These blooms occur globally, devastating everything from our local inland lakes to the vast expanse of the Gulf of Mexico, and even here in the San Francisco Bay, right in my own backyard. They create vast "dead zones" that choke out life, and their leading cause is something you might not expect: synthetic fertilizers.In this episode, Sam and I get into the details of why synthetic fertilizers leave a trail of destruction, and why they've become so deeply ingrained in large-scale farming. We'll explore how Wriggle Brew has developed a game-changing solution by figuring out how to scale up worm casting production into a stable liquid form—a critical breakthrough for sustainable agriculture.And we don't stop there. Did you know that some insect larvae can break down plastics? Sam shares how he and his team are working to replicate that process in bioreactors. It's an inspiring look at how nature and innovation can come together to solve some of our biggest problems.This is a truly fascinating and hopeful discussion, and I can't wait for you to hear it.You can find WriggleBrew and learn more about their work at wrigglebrew.com, and at wrigglebrew on Instagram, TikTok, and Facebook.FULL SHOW NOTES (with photos!)Related EpisodesGabe Brown: https://naturesarchive.com/2023/06/19/regenerative/Elaine Ingham: https://naturesarchive.com/2022/02/07/soil/LINKSWriggleBrew.comThe Soil Triangle (texture)Support Us On Patreon!Buy our Merch!Music: Spellbound by Brian Holtz MusicLicense (CC BY 4.0): https://filmmusic.io/standard-licenseArtist site: https://brianholtzmusic.com Discover the Jumpstart Nature Podcast - entertaining and immersive, it's the nature fix we all need.Check past Nature's Archive episodes for amazing guests like Doug Tallamy, Elaine Ingham, and Rae Wynn-Grant, covering topics from bird migration to fungi to frogs and bats!

Why algal blooms form, how they harm Maine waters, and what can be done about them

Forget everything you think you know about viruses. In the ocean, there are viral giants so large they were mistaken for bacteria for decades – and they're rewriting the rules of marine ecology.Join us as we explore the fascinating world of giant viruses with Benjamin Minch, a PhD student at the University of Miami who has discovered over 230 previously unknown viral genomes using a revolutionary computational tool called BEREN. These microscopic monsters can hijack photosynthesis, manipulate their hosts like puppet masters, and dramatically reshape ocean food webs.Giant viruses are up to 100 times larger than common viruses, with genomes rivaling those of bacteria. Some enhance their hosts' superpowers – boosting photosynthesis and metabolism – before turning infected cells into viral factories. Others cause victims to clump together and sink as marine snow, playing crucial roles in carbon sequestration and climate regulation.From the Baltic Sea's viral treasure trove to practical applications like predicting harmful algal blooms, this episode explores how invisible giants influence everything from ocean food webs to global nutrient cycles. Discover why the ocean's biggest players might also be its smallest.Links:BEREN tool: https://www.biorxiv.org/content/10.1101/2024.10.09.617401v1Ben's research publications: https://idsc.miami.edu/pegasus-powered-giant-virus-study-yields-publicly-shared-bioinformatics-tool/

Editor's Summary by Linda Brubaker, MD, and Preeti Malani, MD, MSJ, Deputy Editors of JAMA, the Journal of the American Medical Association, for articles published from May 31-June 6, 2025.

June 5, 2025 - State Sen. Rachel May, a Syracuse Democrat, reflects on a recent hearing examining the state's response to harmful algal blooms and considers what additional steps should be taken to protect New York's freshwater.

Harmful algal blooms are wreaking havoc along the California coast, releasing toxic domoic acid that is poisoning marine life. In this episode, we explore how this naturally occurring toxin is causing mass die-offs in sea lions, dolphins, and seabirds, and why climate change and nutrient pollution may be making these blooms worse. You'll hear about the science behind domoic acid, its neurological effects on animals, and how it mimics epilepsy symptoms in marine mammals. Domoic acid poisoning is becoming a more frequent and devastating threat to ocean ecosystems, pushing wildlife rescue centers to their limits. We discuss the broader implications of this crisis on marine conservation efforts and public health, and what we can do to protect vulnerable species as ocean temperatures rise. This is not just a marine science issue—it's an urgent conservation challenge that demands our attention. Follow a career in conservation: https://www.conservation-careers.com/online-training/ Use the code SUFB to get 33% off courses and the careers program.   Do you want to join my Ocean Community? Sign Up for Updates on the process: www.speakupforblue.com/oceanapp   Sign up for our Newsletter: http://www.speakupforblue.com/newsletter   Facebook Group: https://bit.ly/3NmYvsI Connect with Speak Up For Blue: Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube  

Longstanding co-operation between the U.S. and Canada in keeping the Great Lakes safe, clean and healthy is at risk as a result of budget and staffing cuts to federal agencies south of the border. A look at the future of lake research and stewardship between the nations, and the threats that have arisen to them as U.S. support dwindles.See omnystudio.com/listener for privacy information.

In this episode Dr. Gillian Beauchamp sits down with Dr. Michael Twiner and Dr. Brett Johnson to discuss harmful algal blooms (HABs) such as inhalation toxicity from Red Tide, neurotoxic shellfish toxicity, diarrheal shellfish poisoning, and amnestic shellfish toxicity. 

Harmful algal blooms – HABs – occur when colonies of algae grow out of control and produce toxic or harmful effects on people, marine life, and birds.  HABs occur naturally but their frequency and intensity are often associated with increased nutrient loading (mainly phosphorous and nitrogen) in bodies of water that is the result of […]

Are harmful algal blooms (HABs) endangering whales? In this episode of How to Protect the Ocean, we explore how HABs might disorient whales, putting them in dangerous situations. Drawing on insights from studies and an article from Mongabay News, I discuss the science, controversies, and potential conservation solutions. Tune in to learn more about this critical ocean health issue and what can be done to protect marine life.  Link to article: https://news.mongabay.com/2025/02/study-suggests-algal-blooms-disorient-whales-putting-them-in-danger/ Follow a career in conservation: https://www.conservation-careers.com/online-training/ Use the code SUFB to get 33% off courses and the careers program.   Do you want to join my Ocean Community? Sign Up for Updates on the process: www.speakupforblue.com/oceanapp   Sign up for our Newsletter: http://www.speakupforblue.com/newsletter   Facebook Group: https://bit.ly/3NmYvsI Connect with Speak Up For Blue: Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube  

Worried about how electric vehicles handle cold winters? The latest tech might ease your mind. Algal blooms are often associated with summer but they're a concern in the winter, too. And there's a Wildlife Weekend planned for early February at the Department of Natural Resources center in Roscommon. Mr. Great Lakes https://mrgreatlakes.com/

Zebra mussels are some of the most high profile and impactful invasive species in Canada, and have transformed the Great Lakes watershed in the past three decades. Voracious feeders that consume all algae, they have clarified our lakes, caked our beaches with their sharp shells, and denied other species precious food. Interactions between zebra mussels and algal blooms, another notorious nuisance, are largely unknown. My research uses environmental DNA, an emerging technology, to examine what factors make an ecosystem resilient to zebra mussel invasion, how native mollusk communities react to zebra mussels, and if they help or hinder algal blooms. For upcoming interviews check out the Grad Chat webpage on Queen’s University School of Graduate Studies & Postdoctoral Affairs website.

The largest solar farm on the ocean is now running off the coast of China as the country continues to invest in ways to support its sustainable energy needs.  In the "How to Protect the Ocean" podcast, host Andrew Lewin discusses China's deployment of the world's largest open sea offshore solar panel farm. The project, developed by CHN Energy, spans 1,223 hectares (3,023 acres) and is located 8 kilometers off the coast of China. It aims to generate one gigawatt of renewable energy and is notable for its innovative use of offshore solar technology. Pros of the Offshore Solar Project Efficient Land Use: Utilizing water bodies for solar energy reduces the need for land clearing and habitat destruction typically associated with land-based solar farms. Reduced Evaporation: The solar panels cover the water surface, which can help conserve water by reducing evaporation rates in reservoirs and agricultural areas. Improved Solar Efficiency: The cooling effect of water can enhance the efficiency of solar panels compared to those installed on land. Dual Use Potential: Floating solar farms can coexist with hydroelectric facilities, optimizing energy production and utilizing existing infrastructure. Algal Bloom Reduction: The solar panels can help suppress harmful algal blooms in aquatic systems by limiting sunlight penetration. Clean Energy Generation: The project contributes to renewable energy production, reducing greenhouse gas emissions and reliance on fossil fuels. Cons of the Offshore Solar Project Impact on Aquatic Systems: The shade from solar panels may alter water temperature and light penetration, potentially disrupting habitats for aquatic plants and animals. Habitat Disruption: The solar farm installation could affect fish spawning areas and migratory patterns, similar to concerns raised about wind farms. Material Degradation: Using plastics and metals in solar structures could lead to microplastic contamination and chemical pollution over time. Recreational Disruption: Floating solar farms may hinder recreational activities, fishing, and navigation in the area. Installation Risks: The anchoring and cabling required for the solar systems could disturb sediments and harm local aquatic habitats. Vulnerability to Weather Events: The structures may be susceptible to damage from storms, hurricanes, and flooding, potentially releasing debris or pollutants into the water. The episode emphasizes the need for careful planning and mitigation strategies to address the potential environmental concerns associated with floating solar farms. While the project presents a promising opportunity for renewable energy generation, it also raises important questions about the ecological impacts on marine environments. The host encourages listeners to engage in the conversation about the balance between renewable energy development and ocean conservation. Link to article: https://electrek.co/2024/11/14/china-worlds-largest-open-sea-offshore-solar-farm/ Follow a career in conservation: https://www.conservation-careers.com/online-training/ Use the code SUFB to get 33% off courses and the careers program.   Do you want to join my Ocean Community? Sign Up for Updates on the process: www.speakupforblue.com/oceanapp   Sign up for our Newsletter: http://www.speakupforblue.com/newsletter   Facebook Group: https://bit.ly/3NmYvsI Connect with Speak Up For Blue: Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube  

Ten years ago, a harmful algal bloom in western Lake Erie forced the city of Toledo to issue a “do not drink” advisory for its water supply. Now, Ohio is home to one of the most transformational wetland restoration programs in America. This program, known as H2Ohio, is using wetland restoration and other practices to reduce nutrient flows into Lake Erie and improving the quality of water for its citizens. In this episode, Dr. Mike Brasher sits down with DU regional biologists, Russ Terry and Corey VanStratt, and Eric Saas of the Ohio Department of Natural Resources to discuss DU's involvement in delivering H2Ohio and how it is producing not only cleaner water, but more habitat for ducks and additional places for hunting.Listen now: www.ducks.org/DUPodcastSend feedback: DUPodcast@ducks.org

In this episode of the "How to Protect the Ocean" podcast, host Andrew Lewin interviews Dr. Paige Hoel, a recent PhD graduate in coastal eutrophication from UCLA and a popular science communicator on TikTok. With nearly 100,000 followers, Paige has gained recognition for her engaging storytelling about ocean science, particularly focusing on topics like the impacts of human activity on ocean health and the intricacies of coastal ecosystems. Paige shares her journey into oceanography, which began at a young age when she became fascinated by the ocean after watching a documentary about Dr. Robert Ballard's discoveries. Her academic path was influenced by her family's strong scientific background, leading her to pursue a PhD in a field that combines her interests in biology, chemistry, and environmental science. During the conversation, Paige discusses how she developed her science communication skills, particularly through teaching a climate change course at UCLA. She emphasizes the importance of making complex scientific concepts accessible to a general audience, especially non-majors who may not have a strong background in science. This experience inspired her to create content on TikTok, where she initially focused on sharing tips for undergraduate and graduate students before transitioning to more ocean-focused content. Paige's TikTok videos highlight various oceanographic topics, including coastal eutrophication, harmful algal blooms, and the effects of wastewater treatment on marine ecosystems. She balances education and entertainment effectively, making science relatable and engaging for her audience. Her ability to tell compelling stories about ocean science raises awareness and encourages viewers to think critically about their relationship with the ocean. Overall, the episode showcases the power of social media, particularly TikTok, as a platform for science communication, allowing scientists like Paige to reach a broader audience and inspire curiosity about oceanography and environmental issues. Paige's TikTok: https://www.tiktok.com/@liloceanpaige?lang=en Follow a career in conservation: https://www.conservation-careers.com/online-training/ Use the code SUFB to get 33% off courses and the careers program.   Do you want to join my Ocean Community? Sign Up for Updates on the process: www.speakupforblue.com/oceanapp   Sign up for our Newsletter: http://www.speakupforblue.com/newsletter   Facebook Group: https://bit.ly/3NmYvsI Connect with Speak Up For Blue: Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube  

In this episode of the How to Protect the Ocean podcast, host Andrew Lewin discusses the recent phenomenon of sawfish displaying unusual behavior in Florida waters, leading to their deaths. While scientists have identified the behavior and its effects, the underlying cause remains uncertain. Andrew shares his personal experiences from a beautiful weekend in North Bay, reflecting on the warmer-than-usual September weather and its implications. Tune in to learn more about this intriguing issue affecting ocean life and stay informed on how to advocate for a healthier ocean. Link to article: https://www.nationalgeographic.com/animals/article/why-fish-are-spinning-to-death-florida?utm_source=flipboard&utm_content=NationalGeographic%2Fmagazine%2FAnimals&rnd=1726101324911&loggedout=true Follow a career in conservation: https://www.conservation-careers.com/online-training/ Use the code SUFB to get 33% off courses and the careers program.   Do you want to join my Ocean Community? Sign Up for Updates on the process: www.speakupforblue.com/oceanapp   Sign up for our Newsletter: http://www.speakupforblue.com/newsletter   Facebook Group: https://bit.ly/3NmYvsI Connect with Speak Up For Blue: Website: https://bit.ly/3fOF3Wf Instagram: https://bit.ly/3rIaJSG TikTok: https://www.tiktok.com/@speakupforblue Twitter: https://bit.ly/3rHZxpc YouTube: www.speakupforblue.com/youtube Scientists have recently made significant strides in understanding the alarming phenomenon of sawfish and other fish exhibiting spinning behavior and subsequently dying in Florida waters. This unusual behavior, observed during the summer, raised concerns among marine biologists and conservationists, particularly because sawfish are already classified as an endangered species. Identification of Toxins Through extensive investigation, researchers discovered that the symptomatic fish had died due to exposure to multiple toxins believed to originate from various species of dinoflagellates, a type of microscopic algae. Under normal conditions, these dinoflagellates reside on seagrass or larger algae on the seafloor. However, an unknown trigger—potentially heat, a storm, or a combination of environmental factors—caused these dinoflagellates to detach from their usual habitats and enter the water column. The Role of Dinoflagellates The specific dinoflagellates identified in this case belong to the genus Gambierdiscus, known for producing a neurotoxin called ciguatoxin. This toxin can lead to ciguatera, a condition in humans characterized by symptoms such as vomiting, nausea, and neurological issues. While researchers were initially concerned about the implications for human health, they found no significant cases of ciguatera reported among those consuming fish from the affected areas. Mechanism of Toxic Exposure Sawfish, which typically inhabit the ocean floor, may have been particularly vulnerable to these toxins. As they swim along the bottom, they use their saw-like rostrum to sift through sediment, potentially disturbing the dinoflagellates and allowing the toxins to enter their gills and accumulate in their livers. This accumulation of toxins likely led to the neurological impacts observed, resulting in the spinning behavior before death. Ongoing Research and Future Implications Despite identifying the presence of multiple toxins and their likely sources, the exact cause of the spinning phenomenon remains unclear. Researchers are still investigating the environmental conditions that led to the dinoflagellates' unusual behavior and the subsequent impact on fish populations. This situation underscores the need for further research to understand the dynamics of harmful algal blooms and their effects on marine life. In response to the crisis, scientists initiated an emergency rescue effort for the critically endangered sawfish in spring 2024. Although the first rescued individual did not survive, the decline in reports of ailing sawfish suggests that the immediate crisis may have passed. However, the potential for future occurrences remains, highlighting the importance of continued monitoring and research to protect these vulnerable species and their habitats. In summary, while scientists have made progress in identifying the toxins responsible for the spinning behavior and deaths of sawfish and other fish, the underlying causes of this phenomenon require further investigation. Understanding these dynamics is crucial for the conservation of endangered species and the health of marine ecosystems. Understanding the Sawfish Phenomenon: A Deep Dive into the Recent Fish Die-Off In the summer of 2023, a concerning phenomenon was observed in Florida waters where sawfish and other fish species were seen spinning in circles before dying. This unusual behavior raised alarms among scientists and conservationists, prompting investigations into the underlying causes. While researchers have identified the complex factors contributing to this behavior, the exact triggers remain elusive. The Role of Dinoflagellates The investigation revealed that the symptomatic fish, including sawfish, died from exposure to multiple toxins, likely originating from various species of dinoflagellates. These microscopic algae typically reside on seagrass or larger algae on the seafloor. However, an unknown driver—potentially heat, storms, or a combination of events—caused these dinoflagellates to leave their usual habitats and enter the water column. This shift is particularly concerning as it can lead to harmful algal blooms, which have significant ecological and health implications. Ciguatoxin and Its Effects A key finding was the presence of elevated levels of dinoflagellates from the genus Gambierdiscus, which produces ciguatoxin, a neurotoxin that can cause ciguatera poisoning in humans who consume contaminated seafood. Although there were no reported cases of ciguatera linked to the fish die-off, the potential risk to human health was a significant concern for researchers. The Impact on Sawfish Sawfish, classified as endangered, were particularly affected by this phenomenon. These flat sharks typically dwell near the ocean floor, where they use their saw-like rostrum to hunt for prey. The disturbance of the seafloor, possibly caused by their own foraging behavior, may have led to the release of the dinoflagellates into the water column. As the sawfish swam along the bottom, they likely ingested the toxins through their gills, resulting in the neurological symptoms that caused them to spin in circles. Emergency Response and Future Preparedness In response to the alarming situation, scientists launched an emergency effort in spring 2024 to rescue critically endangered sawfish affected by the spinning phenomenon. Although the first rescued sawfish did not survive, the number of reported cases began to decline, suggesting that the immediate crisis may have passed. However, researchers are now better equipped to understand the complexities of this issue and are hopeful that future occurrences can be managed more effectively. Ongoing Research and Questions Despite the progress made, many questions remain unanswered. Researchers are still investigating the specific causes of the dinoflagellate bloom and the environmental factors that triggered it. Understanding whether the affected fish were concentrated in specific areas or if the phenomenon was widespread is crucial for future conservation efforts. The need for further research is evident, and scientists are actively working to piece together the puzzle of this unusual fish die-off. Conclusion The recent events surrounding the sawfish and other fish species in Florida highlight the intricate relationships within marine ecosystems and the potential impacts of environmental changes. As researchers continue to study the causes and effects of this phenomenon, it is essential for the public to stay informed and engaged in ocean conservation efforts. By understanding these issues, we can better advocate for the protection of vulnerable species and their habitats. The critically endangered sawfish were particularly affected by the recent phenomenon of spinning behavior and subsequent deaths due to their bottom-dwelling lifestyle. Sawfish, often described as "flat sharks," typically inhabit the seafloor where they align themselves with the substrate. This behavior makes them susceptible to exposure to neurotoxins that may be present in the sediment and water column. During the summer, scientists observed that sawfish and other fish species exhibited unusual spinning behavior before dying. Investigations revealed that this behavior was linked to exposure to multiple toxins, primarily from dinoflagellates, a type of microscopic algae. Under normal conditions, these dinoflagellates reside on seagrass or larger algae on the seafloor. However, an unknown driver—potentially heat, storms, or a combination of environmental factors—caused these dinoflagellates to leave their usual habitats and enter the water column. The sawfish's feeding habits further contributed to their vulnerability. As they swim along the ocean floor, they use their distinctive saw-like rostrum to sift through the substrate, which could disturb the dinoflagellates and release the neurotoxins into the water. This disturbance likely allowed the toxins to enter the gills of the sawfish, leading to the neurological impacts that caused them to spin in circles. Research indicated that the livers of the symptomatic fish were filled with various toxins, including ciguatoxin, produced by the dinoflagellates. While the initial concern was primarily about ciguatoxin due to its implications for human health, it became clear that the issue was more complex, involving a combination of neurotoxins that could affect the fish's behavior. Given that sawfish are already classified as critically endangered, this incident raises significant concerns about their future. Their bottom-dwelling nature means they are more likely to encounter harmful algal blooms and associated toxins. As scientists continue to investigate the causes of this phenomenon, understanding the relationship between the sawfish's habitat, feeding behavior, and exposure to neurotoxins will be crucial for developing effective conservation strategies and mitigating future risks to this vulnerable species. Understanding the Sawfish Phenomenon: A Deep Dive into the Recent Fish Die-Off In the summer of 2023, a concerning phenomenon was observed in Florida waters where sawfish and other fish species were seen spinning in circles before dying. This unusual behavior raised alarms among scientists and conservationists, prompting investigations into the underlying causes. While researchers have identified the complex factors contributing to this behavior, the exact triggers remain elusive. The Role of Dinoflagellates The investigation revealed that the symptomatic fish, including sawfish, died from exposure to multiple toxins, likely originating from various species of dinoflagellates. These microscopic algae typically reside on seagrass or larger algae on the seafloor. However, an unknown driver—potentially heat, storms, or a combination of events—caused these dinoflagellates to leave their usual habitats and enter the water column. Marine scientist Allison Roberts noted the rarity of such occurrences, emphasizing the need for further research to understand the dynamics at play. Notably, the phenomenon was not linked to red tide, a well-known harmful algal bloom, as water quality parameters such as dissolved oxygen, salinity, and pH were within normal ranges. The Discovery of Ciguatoxin A significant breakthrough came from Michael Parsons, a marine ecologist who found elevated levels of seafloor-dwelling dinoflagellates from the genus Gambierdiscus. This genus is known to produce ciguatoxin, a neurotoxin that can cause ciguatera poisoning in humans who consume contaminated seafood. Although there were no reported cases of ciguatera linked to this event, the presence of ciguatoxin in the livers of affected fish raised concerns about human health implications. Interestingly, while the muscles of the symptomatic fish showed minimal toxin levels, their livers were found to be filled with various toxins, indicating that the fish were indeed affected by a cocktail of neurotoxins rather than a single source. Impact on Sawfish Sawfish, classified as endangered, were particularly hard-hit by this phenomenon. These flat sharks typically dwell near the ocean floor, where they use their saw-like rostrum to hunt for prey. The disturbance of the seafloor, possibly caused by their own foraging behavior, may have led to the release of the dinoflagellates into the water column, allowing the toxins to enter their gills and subsequently their livers. In response to the crisis, scientists initiated an emergency rescue effort for the critically endangered sawfish in spring 2024. Although the first rescued sawfish did not survive, the decline in reports of ailing sawfish suggested that the immediate crisis may have subsided. However, researchers are hopeful that with the knowledge gained from this event, they will be better prepared to address similar occurrences in the future. Future Research Directions The episode underscores the importance of ongoing research to unravel the complexities of harmful algal blooms and their impacts on marine life. Questions remain regarding the specific environmental triggers that led to the dinoflagellate bloom and how these toxins affect various fish species. Understanding these dynamics is crucial for the conservation of endangered species like the sawfish and for safeguarding human health. As the scientific community continues to investigate, there is a call for collaboration and communication among researchers, conservationists, and the public to ensure the health of our oceans and the species that inhabit them. In spring 2024, a notable emergency rescue effort was initiated for a distressed sawfish, marking a significant milestone in conservation efforts for this critically endangered species. This initiative was prompted by the alarming phenomenon observed in the summer of 2023, where sawfish and other fish exhibited unusual behavior, such as spinning in circles before dying. This behavior was linked to exposure to multiple toxins, primarily from dinoflagellates, which are a type of microscopic algae. The rescue operation was unprecedented in the United States, highlighting the urgency and importance of protecting the sawfish population. Scientists successfully rescued a distressed sawfish and transported it to the Mote Marine Laboratory, an aquarium located in Sarasota, Florida, for rehabilitation. Unfortunately, despite the efforts made to save the fish, it did not survive. This outcome underscores the challenges faced in the conservation of endangered species, particularly when they are affected by environmental stressors and toxins. Following the rescue, reports of ailing sawfish began to decline, suggesting that the immediate crisis may have subsided. However, the incident raised critical questions about the health of the sawfish population and the environmental factors contributing to their distress. The knowledge gained from this rescue effort is invaluable, as it may better prepare scientists and conservationists for future occurrences of similar phenomena. The rescue also emphasizes the need for ongoing research to understand the causes behind the toxic exposure and the behavior exhibited by the sawfish. Identifying the specific environmental triggers—such as heat, storms, or disturbances in their habitat—will be crucial in developing effective conservation strategies. The hope is that with continued research and monitoring, conservationists can implement measures to protect these vulnerable fish and mitigate the risks posed by harmful algal blooms and other environmental threats. In summary, the emergency rescue of the sawfish in spring 2024 represents a proactive approach to conservation, despite the unfortunate outcome. It serves as a reminder of the complexities involved in marine conservation and the importance of understanding the intricate relationships between marine species and their environments.

Many of Ohio's waterways have faced bacterial contaminations this summer. It has a lasting impact on lake and riverfront town economies.

This summer was hot and water levels in many places were low. Those are ripe conditions for harmful algal blooms. But state environmental regulators say reports of blooms are lower than previous years.

(Sep 3, 2024) Several North Country counties have been approved for disaster aid; a group of Akwesasne Mohawk educators are using dance to teach Adirondackers about Indigenous history; and harmful algal blooms pop up across the state.

In this episode of NDO Podcast we visit with Josh Wert, watershed management program manager for North Dakota Department of Environmental Quality, and Emilee Novak, DEQ nonpoint source pollution management program coordinator, about harmful algal blooms, mitigation efforts and what to be on the lookout for when recreating this summer and fall.

Dr Neil Reid from the Institute of Global Food Security, Queen's School of Biological Sciences in Belfast discusses the findings of a new study which he led on the public health risks posed by blue-green algae in Lough Neagh.

In 2014, a harmful algal bloom contaminated Toledo's drinking water. It spurred action from community, city and state organizations to address water quality on Lake Erie.

Cyanobacteria, commonly called Blue Green Algae, can rapidly reproduce when conditions are right causing potentially hazardous Harmful Algal Blooms. Join Joe and Drew as they discuss why blooms occur, the risks of toxins from Harmful Algal Blooms on wildlife and livestock, and what you can do to reduce your likelihood of experiencing a cyanobacteria bloom. Dr. Joe Gerken and Dr. Drew Ricketts are extension specialists and faculty members in the Wildlife and Outdoor Enterprise Management Program at Kansas State University. Find out more about the program at https://hnr.k-state.edu/academics/undergraduate-programs/wildlife-outdoor-management.html

Cyanobacteria, commonly called Blue Green Algae, can rapidly reproduce when conditions are right causing potentially hazardous Harmful Algal Blooms. Join Joe and Drew as they discuss why blooms occur, the risks of toxins from Harmful Algal Blooms on wildlife and livestock, and what you can do to reduce your likelihood of experiencing a cyanobacteria bloom. Dr. Joe Gerken and Dr. Drew Ricketts are extension specialists and faculty members in the Wildlife and Outdoor Enterprise Management Program at Kansas State University. Find out more about the program at https://hnr.k-state.edu/academics/undergraduate-programs/wildlife-outdoor-management.html

LA County has launched a medical debt relief plan that could involve taxpayer money. Some LA shelters are planning to euthanize 100 dogs this summer. Planning a trip to a lake this Memorial Day weekend? Watch out for toxic scum. Support The L.A. Report by donating at LAist.com/join and by visiting https://laist.com.   Support the show: https://laist.com

Larry Michael, State Environmental Health Director at the North Carolina Department of Health and Human Services, tells us about the many public health careers available to people interested in science and public service; Marissa Vigar, Health Scientist at the CDC, explains that a new study says providers don't feel equipped to treat patients sickened from harmful algal blooms; and an ASTHO webinar dives into a Washington State study about the ways Medicaid enrolled tobacco users access their health care. PublicHealthCareers.org ASTHO Webpage: Public Health Workforce ScienceDirect Webpage: Healthcare Provider Confidence and Perceived Barriers to Diagnosing Illness Associated with Harmful Algal Blooms ASTHO Webinar: Lessons with the State of Washington on Medicaid Data and Tobacco Use ASTHO Webpage: Stay Informed

Spyro Gyra co-founder Jeremy Wall talks about the height of the jazz fusion era, composing and about about the ins and outs of lake formation, spirogyra algae, harmful algal blooms or HABS and more with lake ecologist, Holly Waterfield. This episode was co-produced with the AJ Reid Science Discovery Center at SUNY Oneonta where it was taped in front of a live audience on December 6, 2023.

SeafoodNews Podcast co-hosts Amanda Buckle and Lorin Castiglione are back in the new year with new episodes! This week we talk about Norwegian crab, the harmful algal blooms impacting Chile, and much more! This episode of the SeafoodNews Podcast is brought to you by Urner Barry's Reporter Magazine. The winter 2024 edition of Urner Barry's Reporter magazine is the final issue going to print. Don't miss the farewell to our long-running magazine, as well as informative pieces on Ecuador's shrimp supply; the Russia-Ukraine war's impact on the agricultural market two years in; and much more! You can get your free copy of Urner Barry's Reporter magazine by visiting Urnerbarry.com/reporter.

Welcome to 2024! Here's the top 5 episodes from 2023. If you want to listen and watch the full episodes click the links below:Watch HERE#1  Episode 81 with Alan Rockefeller#2 Episode 71 with Joey Crime Pays#3 Episode 50 on the Truth on Algal Blooms#4 Episode 49 Making plant music with Plant Wave#5 Episode 51 The movement of water through plants and fungiMake sure to follow me on all my social media @florafungapodcastYou can email me at floraandfungapodcast@gmail.comSupport the showMY FIRST SPONSOR: Try MAGIC MIND for 20% off "FLORAFUNGA20" The World's First Productivity Shot™ A matcha-based energy shot infused with nootropics and adaptogens designed to crush procrastination, brain fog, & fatigue. ***I am an affiliate with ENERGYBITS (your daily algae tablet packed with nutrients) go visit this link and use code FLORAFUNGA at checkout for 20% off***Get 20% off Sovereignty use code "KK20" SUPPORT THE SHOW: Join my Patreon for only $1/month [THATS only .03 cents a day!]Follow my other social media sites to interact and engage with me:Email me to be on the podcast or inperson Interview: floraandfungapodcast@gmail.com FacebookInstagramTwitterTikTokYouTubePatreonNew audio don...

FEATURE: The new call to address harmful algal blooms in Cayuga Lake and beyond

Some scientists have started using satellites to keep a better eye on algae blooms.

Euan Reavie from the Natural Resources Research Institute talks about algal blooms in the St. Louis River Estuary

October 12, 2023 - New York health and environmental regulators are dropping the ball when it comes to preventing and mitigating harmful algal blooms in the state's freshwater, according to Walter Hang, president of Toxics Targeting.

(Aug 18, 2023) The powerful storms causing flooding across the North Country are also leading to more runoff into Lake Champlain. And that means a greater potential for dangerous algal blooms. Also: A museum in Rochester is returning indigenous remains in its collection to the Oneida Nation.

Harmful algal blooms cause about $82 million annually in economic losses in fishing and tourism in the Great Lakes region. Survey work is being done in Bay County's Hampton Township to control for non-native phragmites, an invasive reed. What does the Farmer's Almanac say this winter will be like? For more information, visit https://mrgreatlakes.com/

Saginaw Township is one of more than 20 communities to receive state grant funding for projects that address flooding, coastline erosion, urban heat and storm water management. Harmful algal blooms in Michigan are the subject of the latest story map produced by the Michigan Department of Environment, Great Lakes, and Energy. The Little Forks Conservancy in Midland needs volunteer leaders and collectors for a stream sampling event this fall in Gladwin and Clare counties.

Researchers from Cornell University and Rensselaer Polytechnic Institute have found that the continual warming in the world over the past 25 years has been reducing the amount of oxygen in many lakes. Data from more than 400 lakes – mostly in the United States – shows that lakes with dissolved oxygen losses strongly outnumber those […]

This week we chat with Damon Tighe (@damontighe) about alga blooms. Damon is a biotech educator, biodiversity explorer, and has an interest in funga and urban design. He worked in molecular biology on the Human Genome Project. He currently trains high school community college teachers how to incorporate molecular biology like DNA sequencing and protein analysis into the classroom. Some topics we cover include:How we got into flora and fungaBackpacking dos and dontsWhat are algal blooms?The dangers of algal blooms  Where do they come from?Where do you see them?Different types?How does it work?What do the numbers look like?What is a dead zone?How does this affect fish?Inaturalist is AMAZINGHow can we help?Composting Urine?!What would the water look with species goneIs there a bright future?What is he most excited about?What does a typical day look like?Healthcare truthWhere to find more of DamonLinkedInInstagramInaturalist Twitter Support the show***I am an affiliate with ENERGY BITS (your daily algae tablet packed with nutrients) go visit this link and use code FLORAFUNGA at checkout for 20% off***SUPPORT THE SHOW: Join my Patreon for only $1/month [THATS only .03 cents a day!]Follow my other social media sites to interact and engage with me:Email me to be on the podcast or to in-person Interview: floraandfungapodcast@gmail.com FacebookInstagramTwitterYouTubePatreon Help support my book and tea buying habit by "Buying me a Book"a twist on buy me a coffeeWhen I reach my goal of $100 I will do a special book giveaway! Theme song : -Soundotcom called Go Rock -Take the Lead by Kevin MacLeodLink: https://incompetech.filmmusic.io/song/4458-take-the-leadLicense: http://creativecommons.org/

The October episode of North Coast Chronicles Podcast takes us into the secret world of toxic harmful algal blooms! We know that this scummy surface algae is bad for people and animals with untold damage to our freshwater resource and not just a phenomenon in the Great Lakes. There is so much more to learn! Dr. Silvia Elena Newell from Wright State University joins the podcast to help us understand what it is, the nitrogen cycle and is there anything we can do to prevent it?