(1) The following methods must be used for measuring the size of fish—
(a) in the case of garfish, the measurement must be taken from the top of the upper jaw to the end of the upper half of the tail;
(b) in the case of shark, the length must be measured from the posterior gill slit to the base of the tail fin;
(c) in the case of tuna, the length must be measured from the tip of the snout to the fork of the tail fin;
(d) in the case of other finfish, the length must be measured from the tip of the snout with the mouth closed, to the end of the tail fin;
(e) in the case of spiny freshwater crayfish, the measurement is taken from the rear of the eye orbit depression to the nearest part of the posterior edge of the carapace;
(f) in the case of bug of the species Ibacus peronii , the width must be measured from spike to spike at the widest point of the carapace, whether or not it is broken or damaged.
(2) In this regulation, "finfish "means any fish other than shark and invertebrates.