Algal blooms are the result of a nutrient, like nitrogen or phosphorus from various sources (for example fertilizer runoff or other forms of nutrient pollution), entering the aquatic system and …

Sep 10, 2025 · A harmful algal bloom (HAB) occurs when toxin-producing algae grow excessively in a body of water. The excessive algal growth, or algal bloom, becomes visible to the naked …

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 …

Jul 4, 2025 · Algal blooms are rapid growths or gatherings of algae in aquatic systems like lakes, rivers, or oceans. Depending on the algae, such blooms can cause red, brown, or blue …

Jul 19, 2025 · An algal bloom is a rapid increase in the population of algae in a body of water. Algal blooms are a natural part of the environment, but they have become more frequent and …

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 …

Jul 15, 2025 · This article discusses what harmful algal blooms (HABs) are and summarizes quick identification tips, water testing, and bloom control methods.

Mar 8, 2024 · Learning to recognize signs of a harmful algal bloom, and staying out of water if you see one, can help you avoid getting sick. Government agencies and other organizations are …

Aug 2, 2025 · A harmful algal bloom, often called a HAB, represents a rapid and dense overgrowth of algae or cyanobacteria in a body of water. While algae are natural components …

Apr 18, 2024 · Algal blooms known as "nuisance blooms" can discolor water, smell bad, and cause the water or fish to taste bad. Nuisance blooms are not usually dangerous to people, …