The Term Toxicity Is Used to Describe the Potential For a Material to Harm or Kill Living
Organisms. Acute Toxicity Tests Are Used to Determine If a Substance or Effluent, In Specific Quantities, Is
Harmful to a Group of Test Organisms Under Controlled Conditions of Exposure For a Relatively Brief Period
Of Time. Population Increase, Rapid Urbanisation, Rapid Industrialization, and Rapid Agricultural
Development Have All Had a Major Impact on Water Quality and Availability In India. Human Actions
Including Oxygen Depletion, Increasing Bod Cod Loads, and Alterations In Water Clarity, Ph,
Phosphate, and Nitrate Levels Are to Blame For Eutrophication and the Degradation of Water Quality.
Aquatic Organisms Are Particularly Vulnerable to Environmental Pollution. Ecological Exploitation Has Put
Aquatic Ecosystems Including Plankton, Fish, and Invertebrates Under Tremendous Pressure. Here, Fish
Bioassays Might Prove to Be a Useful Tool For Assessing the State of Water That Has Been Polluted With A
Wide Variety of Potentially Hazardous Substances. Fish Bioassays Have Revealed a Wide Variety Of
Pathological Effects, Including Stunted Development, In Polluted River Water. Both Generalizable And
Target-Specific Effects Can Be Investigated Through Bioassay Research. an Organism Is Able To
Successfully Deal With the Challenge of Survival In a Changing Environment Because of Its Behavior,
Which Allows It to Adapt to Both External and Internal Inputs.