Question

How is water pollution harmful for the fishes? ​

Answer 1

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Alleged pollution-related diseases include epidermal papilloma, fin/tail rot, gill disease, hyperplasia, liver damage, neoplasia and ulceration. At least one outbreak of vibriosis was linked to high concentrations of copper, which may have debilitated the fish making them more susceptible to disease.

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Answer 2

Answer:

Potentially harmful substances-e.g. pesticides, heavy metals and hydrocarbons-are often released into the aquatic environment. When large quantities of pollutants are released there may be an immediate impact as measured by large-scale sudden mortalities of aquatic organisms, e.g. fish kills resulting from contamination of waterways with agricultural pesticides