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Barley straw, in England, is placed in mesh bags and floated in fish ponds or water gardens to help reduce algal growth without harming pond plants and animals. Barley straw has not been approved by the United States Environmental Protection Agency (EPA) for use as a pesticide and its effectiveness as an algaecide in ponds has produced mixed results during university testing in the United ...
Black beard algae or black brush algae (referred to as BBA) belong to the genera Audouinella and Rhodochorton. It grows in the same habit as staghorn algae. [14] BBA, however, tends to grow in dense patches of fine strands. It may be a symptom of high levels of nitrates, phosphates, or iron. [15]
Audouinella, also known as black algae, [1] is a widespread genus of red algae, found in marine and freshwater environments. [ 2 ] The form known as " black brush algae " (or " black beard algae ", BBA for short) is a particular nuisance in aquaria , since most algae eater fish and invertebrates avoid it.
This particular type of cyanobacteria is responsible for creating black stains and streaks on roofs. [1] The bacteria accumulate over time as it feeds on moisture and calcium carbonate . [ 2 ] This accumulation begins to show the black stains as the cyanobacteria develop their dark and hard UV -protective outer coating.
Black sludge, invasive seaweed, toxic algae: Cape Cod pond, coastal waters get poor marks ... Ruszala said the town is now testing a new treatment system for the shut-down wells 4 and 5, located ...
Ultrasonic algae control is a commercial technology that has been claimed to control the blooming of cyanobacteria, algae, and biofouling in lakes, and reservoirs, by using pulsed ultrasound. [ 6 ] [ 7 ] The duration of such treatment is supposed to take up to several months, depending on the water volume and algae species.