A harmful algal bloom (HAB), or excessive algae growth, sometimes called a red tide in marine environments, is an algal bloom that causes negative impacts to other organisms by …

Jan 9, 2024 · Harmful algal blooms are the rapid growth of algae or cyanobacteria in water that can harm people, animals, or the environment. Going in or near water with a harmful algal …

Mar 27, 2025 · The toxic algae emerged earlier this year than previous domoic acid outbreaks and so far has been most severe between Los Angeles and Santa Barbara counties. The Southern …

Apr 29, 2025 · What causes toxic algae blooms? Algal blooms thrive in warm, slow-moving water rich in nutrients, especially phosphorus. “During periods of drought when water levels drop and …

Feb 24, 2025 · Harmful blooms of cyanobacteria are most commonly found in fresh water such as lakes, rivers, and streams. Signs and symptoms caused by these harmful algal blooms vary …

Apr 30, 2025 · The most common algae associated with marine toxic HABs include the dinoflagellates (e.g., Florida red tide Karenia brevis) and diatoms (Pseudo-nitzschia) while …

Apr 27, 2016 · Harmful algal blooms, or HABs, occur when colonies of algae — simple plants that live in the sea and freshwater — grow out of control and produce toxic or harmful effects on …

Apr 2, 2024 · Harmful algal blooms are caused by certain types of algae and cyanobacteria (also called blue-green algae). Harmful algal blooms, and the toxins they make, can cause mild to …

Apr 22, 2025 · Algal toxins released into the surrounding water or air can seriously harm people, animals, fish, and other parts of the ecosystem. What is a harmful algal bloom? A harmful …

Mar 6, 2025 · Harmful algal blooms (HABs) can have adverse effects on human, animal, and ecosystem health, and cause significant economic impacts to coastal communities. Ranging …