"neurobiologists have long recognized that fish have nervous
systems that comprehend and respond to pain, and anyone who made it
through Biology 101 knows that fish have nerves and brains that
sense pain, just like all animals. Indeed, scientists tell us that
fish brains and nervous systems closely resemble our own. For
example, fish (like higher vertebrates) have neurotransmitters
like endorphins that relieve sufferingof course, the only reason
for their nervous systems to produce pain killers is to relieve
pain. Claiming that fish do not suffer is as intellectually and
scientifically sound as arguing that the Earth is flat."
do a google search on 'can fish feel pain?' and see what you can
get...................