С другой стороны, были случаи, когд

С другой стороны, были случаи, когда пресноводные рыбы, например форель, прыгнув в соседний резервуар, поедала пиранью.

Результаты (английский) 1:

On the other hand, there have been cases where freshwater fish, such as trout, jumping into a nearby reservoir, poedala Piranha.

Результаты (английский) 2:

On the other hand, there were cases where freshwater fish, such as trout, jumping into a nearby reservoir was eating piranha.

Результаты (английский) 3:

On the other hand, there have been cases in which freshwater fish, such as trout, home to an adjacent reservoir, поедала piranhas.