An activity of human has bothered the freshwater ecosystems passing what refer as cultural eutrofication. Cultural eutrofication was a made-up the density of photosynthetic organism by explosive that happened in water environment. A dismissal of liquid waste from factory, streams a surface of livestock dismissal from place of livestock animal, and fertilize from agriculture area, have encumbered the current water with anorganic nutrient so that cause explosion of population algae and sianobattery. The Population explosion causes the lower territorial water area becomes closed over by gulma, that making transportation irrigate and fish arrest not possible to conduct. Others, explosion of algae population sometime result the more oxygen production during daytime, but less at night amount the effect of respiration by a lot of population photosynthetic organism. When photosynthetic organism dead and organic substance accumulate in base water territorial, other organism like as detritivora use all oxygen in deeper water. All this influence causes some organism not possible to live. For example, cultural eutrofication at Erie Lake made the fish population which commercially had dead. After the time of they made a tighter regulation about waste dismissal in lake, so that enable some fish population to grow up return.
Tidak ada komentar:
Posting Komentar