How do fish react when they hear a human sound?

Question: How do fish react when they hear a human sound?
- Keywords:
  fish,
  human,
  sound
Asked by claudiasandra to Ed, Hayley, Jason, Nathan, Sophie on 18 Mar 2013.
- Nathan Green answered on 18 Mar 2013:
  
  Whether human or not, fish like most creature are instinctively risk averse (i.e. scared) when they hear or see something new or loud. The first instinct is to run away/swim to safety and then think about what it was afterwards. If they hang around it may be too late and they get eaten.

Question: How do fish react when they hear a human sound?