This may reduce the oxygen level enough to kill fish and other aquatic life.

How the spores kill young fish is not entirely clear.

The main concern has been whether the turbines kill fish.

As a result, they are extremely hardy and able to tolerate conditions that would kill most other fish.

The metals have killed fish and made them unsafe to eat.

Many pollutions will kill fish, or at least cause them distress.

Then the question came, would the explosions kill fish?

"I told them, of course we will kill fish," the scientist recalled.

The pressure is strong enough to kill small fish.

There they could kill the native plants and fish of the larger ecosystem.