Algal bloom
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An algal bloom or algae bloom is a rapid increase or accumulation in the population of algae in fresh water or marine water systems. It may be a benign or harmful algal bloom.
A very large algae bloom in Lake Erie, North America, which can be seen from space.
Rivers, such as the Amazon, deposit nutrients from land into South America's tropical ocean waters, leading to thick blooms along the coastline.
Blooms flourish in a dark plume of nutrient-rich water pouring from the mouth of the Amazon River, as seen by NASA's Aqua satellite.
Coastal phytoplankton bloom change 2003–2020.
Harmful algal bloom
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A harmful algal bloom, or excessive algae growth, sometimes called a red tide in marine environments, is an algal bloom that causes negative impacts to other organisms by production of natural algae-p
Algal bloom
…algal bloom or algae bloom is a rapid increase or accumulation in the population of algae in fresh water or marine water systems. It may be a benign or harmful algal bloom. Algal bloom is often recognized by the discoloration in the water from the algae's pigments. The term algae encompasses many types of aquatic…
Cyanobacteria algae on the coast of northern Germany
A harmful algal bloom event off the coast of San Diego, California
Harmful algal bloom in a harbor in Japan
A harmful coastal algal bloom event