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url: https://www.eurocovers.eu/glossary/algae-bloom
term: Algae bloom
definition: A rapid increase in algae population in a water body, driven by nutrients (phosphorus, nitrogen), light, and temperature. Floating covers prevent blooms by blocking light.
updated: 2026-05-25
---

# Algae bloom

A rapid increase in algae population in a water body, driven by nutrients (phosphorus, nitrogen), light, and temperature. Floating covers prevent blooms by blocking light.

An **algae bloom** is a rapid increase in algae population in a water body, driven by the
intersection of available nutrients (phosphorus and nitrogen), sunlight, and temperature. Blooms
drive treatment cost, taste and odor complaints, and (for toxin-producing species) acute water
quality risk. Floating covers prevent algae blooms at the source by blocking the sunlight required
for photosynthesis — 95%+ suppression with no chemicals and no operating cost.