What is ram ventilation?

1 Answer
Sep 12, 2017


Ram ventilation is a type of gill ventilation used by some fish species, especially those in marine environment.


Ram ventilation constitutes swimming in relatively straight lines at a high rate of speed with the mouth open. This forces water through the mouth and over the gills, meaning the fish can breathe passively while swimming.

Some classic examples are tuna, swordfish and shark.