(a) Salmon includes Chinook, coho, pink, chum, and sockeye salmon.

(b) Any person in possession of a recreationally taken salmon with a missing adipose fin (the small, fleshy fin on the back of the fish between the back fin and tail) shall immediately relinquish the head of the salmon, upon request by an authorized agent or employee of the department, to facilitate the recovery of any coded-wire tag. The head may be removed by the fish owner or, if removed by the official department representative, the head shall be removed in a manner to minimize loss of salmon flesh and the salmon shall immediately be returned to the fish owner.