Ask A Scientist Zoology Archive

name         Don A.
status       other
age          60s

Question -   I recently attended the Jason Project Presentation at
Crafton Hills Community College in Yucapia, California and I disputed an
answer given by the person presiding over the program and she told the
people attending that you tell the age of fish by looking at the scales
because they are similar to the tree rings and that is not true because
catfish, trout and stripped bass don't have scales so please can this be
answered?

It works for those fish that have scales, obviously not for fish without
scales.

J. Elliott
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