Two reasons
1. Lack of oxygen
2. Through toxins
All aquatic creatures are affected by pollution. Due to it destroying their homes or killing the fish some fish eat to survive.
There were no fish killed as a result of the Titanic pollution, as the ship sank in the North Atlantic Ocean and did not release any significant pollutants harmful to marine life in the area at the time.
Animals that have been killed by water pollution include fish, birds, mammals, and reptiles. These animals can die from ingesting polluted water, being exposed to toxic chemicals, or losing their habitats due to pollution. Water pollution can also lead to reduced oxygen levels, affecting aquatic organisms' ability to survive.
Pollution in water affects fish. Pollution can be caused by smoke or smog from factories, etc.
Pollution is a bad thing. But water pollution is worse. Everyday we are drinking and using water unresponsibly. But what happens when that water runs out? We will be forced to drink salt water and pollution. (Don't eat the fish that comes from water!)
if the water is polluted then the fish will die, which will lead to poverty and job loss for other people. this wil also create crime and other social problemsWater pollution affects fish, and anything that eats it. It also affects fish reproduction and poisons people.the disadvantages of water pollution is
The pollution often clumps together and falls into the water where the fish eat the clumps of pollution. More often than not though, the clumps are smaller than what the eye can see, so the plankton are eating the clumps and the fish eat the plankton. either way, the pollution gets into the fish and they die. When they die, other fish eat the dead fish and eventually all the fish have eaten the pollution and will develop lungs to walk on land and eat your toes at night so never forget to wear your socks to bed.
The pollution goes down to the river, and its kills fish, also livings on land and water nature.
Some consider heating of open bodies of water by discharge from industrial plants to be pollution on the theory that it adversely affects the lives of the fish in the water. In some such cases, it has been demonstrated that the fish thrived in the warmer water.
They damage fish as most toxins in the water can harm the fish. Some toxins have a mild effect on fish but some can be fatal. Water pollution can also suffocate the fish if algea forms on the lake/ river because the fish lose oxygen. These are some of the points just look it up on the web.
Water pollution is a huge concern as there will be no water left for us if we pollute them like this. Fishes and other organisms suffer due to water pollution, water pollution even disturbs the cycle of the nature.
Pollution affects waterfalls because pollution goes through air and can actually fly into water and rivers, which causes water pollution that can somewhat spread. This kills algae and fish and it kills our clean source of water.