Algae often takes the appearance of increasingly thick green foam as the season progresses, the colony of filamentous algae usually extends to the surface of the water, but it can also be spread from the bottom on a thicker gelitonous strand. The damage that these microscopic algae give rise are most often momentary, but in some cases may prove to be irreparable. they can be several causes: shading of the water plan, runoff from fields, bird droppings, excessive feeding, plant fertilizer. Algae usually follows standard appearances and generalized symptoms and causes are to blame.
1 - Forming thick mats on the surface, filamentous algae prevent sub aquatic vegetation to benefit from UV provided by the Sun, and therefore to develop. This is detrimental to many species, including animals.
2 - Eutrophication: If these algae appear frequently in a eutrophied (lacking in oxygen) environment, they produce yet large, excessive amounts during the day. Paradoxically, these releases can be very harmful to the denitrifying bacteria, intensive in nitrate, and in fact, tends to medium-term water oxygen, developing outrageously at the expense of other plants that might compete with them and wildlife in general.
3 - Nuisance Wildlife: many invertebrates and young fish and frogs may find themselves trapped in their filaments and y die. In addition, harming many animal and plant species they agravent the impoverishment of the midges, depriving wildlife of food resources and spawning grounds or interesting nurseries. A low density of these algae however offers shelter to micro-organisms, but the benefit is lost as soon as they condense, stifling even the development of plankton.
4 - Aesthetic Degradation: the thick layer of green algae floating on a body of water is particularly ugly and embarrassing the ornamental varieties planted, they do not allow them to give the best of themselves.
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