system
Given the following post, respond as if you're commenting on Reddit:
human
Do fish get confused when a large current or flood displaces them somewhere far away?
gpt
There are many, many different species of fish and they all behave and react differently.  
There are territorial fish: Clown fish (of Finding Nemo fame) will go and find an anemone during adolescence, and then never leave the square metre around that again until they die. Being displaced would likely kill them, or they may move to a different anemone if they can find one quickly, but that is not the sort of experiment that people like to run.  
  
Lots other fish are on the move their entire life. Mackerel and tuna, many sharks, herring - a long list of fish that just follows the food, the currents and the temperature. They don't have a territory so displacing them would impact them less - though the impact would be nonzero because they would still notice a difference in the water quality.