
FLYING FISH - Family Exocoetidae
Distribution: Flying fish live in all of the oceans,
particularly in tropical and warm subtropical waters.
Description: Their most striking feature is their
pectoral fins, which are unusually large, and enable the fish to hide
and escape from predators by leaping out of the water, flying through
air a few feet above the water's surface. Most are small, approximately
6 inches long. Flying Fish feed mainly on plankton.
Predators: include dolphins, tuna, marlin, birds,
squids and porpoises.
Flight: Flying fish are gliders, not true flyers like
birds, bats, and insects, all of which fly by beating their wings. To
glide upward out of the water, a flying fish moves its tail up to 70
times per second. It then spreads its pectoral fins and tilts them
slightly upward to provide lift. At the end of a glide, it folds its
pectoral fins to reenter the sea, or drops its tail into the water to
push against the water to lift itself for another glide, possibly
changing direction. The curved profile of the "wing" is comparable to
the aerodynamic shape of a bird wing. The fish is able to increase its
time in the air by flying straight into or at an angle to the direction
of updrafts created by a combination of air and ocean currents.
