• As water bodies go on dying, the food chain breaks. Only those species which take high nutrients and can grab them fast survive in the habitat

• Tubificid worms, larvae and bacteria replace the vertebrates in water

• This broken food chain can lead to extinction of many species and many adverse conditions

More effects:

• Increased biomass like phytoplankton in water

• Decrease in harvestable fish and shell fish

• Increase in turbidity of water

• Loss of aesthetic value of water body

• Biological Oxygen Demand(BOD) serves as a measure for finding out about Eutrophication in water

• Amount of O₂ consumption by living organisms in water- more consumption more organic matter more nutrients Eutrophication

• A high BOD indicates occurrence of Eutrophication in the water body

Prevention and Reversal of Eutrophication

• If Organic material addition stops, the bacteria use up all the nutrients available and stop die off after sometime this can let the left off plants and vertebrates grow their numbers again

• Concentration of dissolved O₂ increases through natural means like atmospheric replenishment and photosynthesis

• Cleaning up of water bodies will help in removing sedimentation and allowing plants and fish grow again

• Organic farming reduces the amount of Nitrites that flow into water when compared to its counterpart of farming

And

Controlling pollution and flow of polluting substances into water bodies