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Pinnularia is a predominantly fresh-water algae usually found in ponds and moist soil. [2] They can also be found in springs, estuaries , sediments , and oceans. Members of this genus are most commonly found in 40 cm (16 in) of water, at 5 °C (41 °F).
Algae can be used to capture fertilizers in runoff from farms. When subsequently harvested, the enriched algae can be used as fertilizer. Aquaria and ponds can be filtered using algae, which absorb nutrients from the water in a device called an algae scrubber, also known as an algae turf scrubber. [130] [131]
In most ponds both bacteria and algae are needed in order to maximize the decomposition of organic matter and the removal of other pollutants. [15] Algae produce oxygen (photosynthesis) and also consume oxygen (respiration), but they leave an excess of oxygen that can then be used by aerobic bacteria for respiration and for the processes of ...
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.
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 ...
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.
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