January 14, 2000

Algal Blooms Tied to Sea-Lion Deaths

By LILA GUTERMAN

Researchers have shown for the first time that marine mammals can die as a direct consequence of toxic blooms of algae. What's more, they found that a commonly used monitor for toxicity failed to warn that toxin levels in the food chain could harm marine life, and possibly human beings.

Harmful algal blooms create public-health threats and had been thought to injure marine wildlife because marine algae, some of which produce toxins, form the base of the

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