Tag: Toxic Algal Blooms

Toxic Algae Bloom Overwhelms California Marine Rescuers as Sea Lions Fall Ill

10/19/2025 - By Dawn Anderson, Published in best4boats.com. A severe harmful algal bloom along Southern California's coast is creating hazardous conditions not only for marine mammals but also for boaters and beachgoers who may encounter disoriented or aggressive sea lions. The crisis highlights growing concerns about ocean health along one of America's… SEE MORE

Mild to Moderate Harmful Algal Bloom Predicted for Western Lake Erie

6/27/2025 - By noaa.gov. NOAA and its research partners are forecasting a mild to moderate harmful algal bloom (HAB) in western Lake Erie this summer. This year’s bloom is expected to measure 3 on the HAB severity index, with a potential range of 2–4. The HAB severity index is based on the… SEE MORE

Will Shrinking Glaciers Mean More Harmful Algal Blooms?

4/15/2025 - By tula.org. Marine algae known as phytoplankton form the essential foundation of marine food webs. Some are dangerous to marine mammals and humans, and researchers are exploring how the diversity and abundance of certain phytoplankton are linked to fresh water—which may be bad news in a changing climate. Toxic algal… SEE MORE

California sea lion stricken by the neurotoxin domoic acid from a harmful algal bloom in Santa Barbara County, California. Photo: Channel Islands Marine & Wildlife Institute

Toxic Algal Bloom Affecting California Sea Lions and Dolphins

8/17/2024 - By fisheries.noaa.gov. Upwelling of nutrient-laden ocean water is fueling the algal bloom which produces domoic acid, which can poison marine mammals. Strong upwelling of nutrient-laden water from the deep ocean is driving a bloom of harmful algae along the Southern California coast. It produces a toxin that can poison sea… SEE MORE

Detection of Massive Harmful Algal Bloom in the Arctic Prompts Real-Time Advisories

7/25/2024 - By ecomagazine.com. In the summer of 2022, a research cruise detected a massive harmful algal bloom (HAB) in the Bering Strait region of western Alaska. This expedition provided a dramatic example of science utilizing new technology to track a neurotoxic HAB and effectively communicate information that protects remote coastal communities… SEE MORE

Moderate to above-moderate harmful algal bloom predicted for western Lake Erie

6/27/2024 - By noaa.gov. Blue-green algae capable of producing substance toxic to humans and wildlife, can affect drinking water and local economies. NOAA and its research partners are forecasting a moderate to above-moderate harmful algal bloom (HAB) in western Lake Erie this summer. This year’s bloom is expected to measure 5, with… SEE MORE

Workshop participants collect water samples to explore phytoplankton at Bodega Bay Marine Laboratory.

California Tribal Communities Ready to Monitor Culturally Important Marine Resources Impacted by Harmful Algal Blooms

1/24/2024 - By coastalscience.noaa.gov Traditional shellfish resources are often the lifeway to coastal tribes who rely on indigenous fisheries for subsistence. However, the expanding threat of harmful algal blooms (HABs) contaminate shellfish and poison local communities. NCCOS engages both locally and through regional partnerships with tribal nations to design workshops specific to… SEE MORE

The green scum shown in this image is the worst algae bloom Lake Erie has experienced in decades by Wikicommons.

Illness and Symptoms: Marine (Saltwater) Algal Blooms

Coastal News

7/12/2023 - By cdc.gov. Algae that can produce toxins can make both people and animals sick. Learn more about illnesses and symptoms caused by harmful algal blooms (often called red tides) in salt water. In salt water, such as oceans and bays, harmful algal blooms are most commonly caused by diatoms and… SEE MORE

Toxic Algal Blooms

Alaska coast - Image by Dennis Larsen from Pixabay

Study Finds Growing Potential for Toxic Algal Blooms in the Alaskan Arctic

Coastal News

10/27/2021 - Changes in the northern Alaskan Arctic ocean environment have reached a point at which a previously rare phenomenon—widespread blooms of toxic algae—could become more commonplace. These blooms potentially threaten a wide range of marine wildlife and the people who rely on local marine resources for food. That is the conclusion… SEE MORE