[Coral-List] Why do fish swim upside down in caves?
cdelbeek at calacademy.org
Wed Feb 3 16:22:26 EST 2016
Our exhibit design consultant asked me this question concerning
My thoughts were that since these fish are bottom oriented they feel more
secure with something on their ventral surface, I also believe they can see
more what is ahead and below them where most predators come from for bottom
oriented fish?? Also when a fish swims into a cave or overhang they are
swimming down a reef face and coming across the opening so it is safer to
remain oriented to the rock face then twisting and turning as they enter to
cave/crevice. Also the shelter holes are in the ceiling so it is easier to
dart into them when it is below them then above their line of sight, but I
am just guessing on these.
Anyone have something more definitive on this?
Thanks in advance!
*J. Charles Delbeek, M.Sc. *Assistant Curator, Steinhart Aquarium
California Academy of Sciences
*cdelbeek at calacademy.org <cdelbeek at calacademy.org> *www.calacademy.org
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