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Asparagopsis armata is a species of marine red algae, in the family Bonnemaisoniaceae. [1] English name(s) include red harpoon weed. [2] They are multicellular eukaryotic organisms. This species was first described in 1855 by Harvey, [3] an Irish botanist who found the algae on the Western Australian coast.
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 ...
The Zygnemataceae are a family [2] of filamentous or unicellular, uniseriate (unbranched) green algae.The filaments are septated and reproduction is by conjugation; Spirogyra is commonly used in schools to demonstrate this kind of reproduction.
Several types of invertebrates are present in the ponds where they control the population of algae, which then settles to the bottom. [15] Heavy algal growth may block sunlight from penetrating into the pond. This decreases the potential for photosynthesis to contribute oxygen to the pond. [citation needed]
Facultative lagoon (polishing pond) providing tertiary treatment after a constructed wetland in Hamburg-Allermöhe, Germany. Overflow from the facultative lagoon may be routed through one or more polishing ponds supporting lower populations of anaerobic micro-organisms and a higher proportion of aerobic organisms adapted to survival in lower concentrations of organic material.
Spirogyra (common names include water silk, mermaid's tresses, and blanket weed) is a genus of filamentous charophyte green algae of the order Zygnematales, named for the helical or spiral arrangement of the chloroplasts that is characteristic of the genus. Spirogyra species, of which there are more than 500, are commonly found in freshwater ...
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