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A very large algae bloom in Lake Erie, North America, which can be seen from space. 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 is often recognized by the discoloration in the water from the algae's pigments. [1]
Cyanobacteria (blue-green algae) bloom on Lake Erie (United States) in 2009. These kinds of algae can cause harmful algal bloom. A harmful algal bloom (HAB), or excessive algae growth, is an algal bloom that causes negative impacts to other organisms by production of natural algae-produced toxins, water deoxygenation, mechanical damage to other organisms, or by other means.
An algal bloom, sometimes referred to as a “red tide,” is a cluster of algae that forms when the water around it is warm, slow-moving and full of nutrients, according to the Centers for ...
In freshwater ecosystems, algal blooms are most commonly caused by high levels of nutrients (eutrophication). The blooms can look like foam, scum or mats or like paint floating on the surface of the water, but they are not always visible. Nor are the blooms always green; they can be blue, and some cyanobacteria species are coloured brownish-red.
Blue-green algae are a natural part of lake ecosystems, and algal blooms have occurred for many centuries. "Algal blooms occur when conditions are right. Little wind, warm water, sunlight and ...
Blue-green algae, known as cyanobacteria or harmful algal blooms (HABs), has been confirmed at Devils Lake in Manitou Beach, a news release from the Lenawee County Health Department said.
Heterosigma akashiwo is a species of microscopic algae of the class Raphidophyceae. [1] [2] It is a swimming marine alga that episodically forms toxic surface aggregations known as harmful algal bloom. The species name akashiwo is from the Japanese for "red tide". [1]
Toxin levels from harmful algal blooms have exceeded safe levels for dogs since shortly after testing resumed for the season in May. HABs often resemble pea soup or spilled green paint, but the ...