Measure Fish and Crabs

Use these guidelines to measure fish correctly (total length):

  1. Place the fish on its side with the jaw closed.
  2. Squeeze the tail fin together or turn it in a way to obtain the maximum overall length.
  3. Measure a straight line from the tip of the snout to the extreme tip of the tail fin.
diagram of how to measure a fish

diagram of how to measure clawlength of a crab