Any person who transports out of this state any bait species taken from any of the waters of this state or who takes, assists in taking or attempts to take any bait species from any such waters for the purpose of transporting the same out of the state shall be fined not less than fifty dollars nor more than two hundred dollars or imprisoned not more than thirty days or both; but no provision hereof shall prevent the exportation of bait species propagated and grown in private waters registered with the board as such or in licensed commercial hatcheries.