So you catch a fish in a net
lets us call him/her - wasabi
While wasabi is in the boat and you are untangling all the jellyfish, crabs, seaweed other fish etc,
wasabi has been breathing pure oxygen for more than 15 minutes
yet wasabi still lives.
fish filter oxygen through their gills via the water
Why can a fish not survive full time above water?
(the above image does not represent Nemo unless you want it to)