#harmful-algal-blooms

2 articles

Red Tides and Harmful Algal Blooms: When Plankton Turns Dangerous

What causes red tides and harmful algal blooms, the toxins behind shellfish closures, why warming waters are shifting the risk, and how scientists watch for them.

Dr. Lena Fischer · September 26, 2026

Science7 min read

Forecasting Red Tides: How Harmful Algal Bloom Bulletins Work

From satellite chlorophyll to shellfish closure thresholds, here's how harmful algal bloom forecasts are built, issued and used to keep seafood and coasts safe.

Dr. Lena Fischer · September 8, 2026

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