Because of all the new pollution in the water that came from when the dam flooded.
The food is being poisend bc of not cleaning hands before feading them
Building them has considerable environmental impact - it creates a man-made lake that floods great areas. Migrating fish are stopped in their tracks.
Building dams is a threat to fish because it takes away from their habitat and breeding grounds. Dams may also hinder their ability to migrate.
Dams cover a lot of often fertile farmland.Silt and debris build up behind the dam wall producing and releasing methane, a serious greenhouse gas.Dams often prevent fish moving upstream to their breeding grounds.
Washed downstream by flash floods and held up by the dam from going any further. Also, during times of drought they will migrate to areas where more water is present.
because the dams drive away the fish and makes the ecosystem FUNKY
Yes and no, they provide a plentiful source of clean energy, however, they also have a profound impact on local wildlife. Many fish species would not be able to reach the breeding grounds they go to every year, and some organisms would also die when a lake is created. In my opinion, the energy provided justifies the damage, as beyond construction, no CO2 is emitted.
Hydro-electricity floods valleys and sometimes good arable land. The dams cause problems for fish migration. On the positive side, the electricity generated is clean and emission free, so there are fewer greenhouse gases in the atmosphere.
Dams have been build blocking fish like salmon from climbing upstream to reproduce. The Dams are built to generate electricity with their generators and the make towns inhabitable though.
Dams can and have prevented the fish from getting to their normal breeding grounds which they have used for thousands of years.
It can be difficult to tell if a fish is sleeping or dying. Look for signs of movement or breathing to determine if the fish is still alive. If you are concerned, consult a veterinarian or a fish expert for advice.
No because they can be dying I have a fish riht now actually 4 and they have white scales I think there dying