California Code, Fish and Game Code - FGC § 14101

The term of each commissioner shall be four years.  A commissioner shall hold office until his successor shall be appointed and qualified but such successor's term shall expire four years from the legal date of expiration of the term of his predecessor.  Any commissioner may be removed from office by the Governor upon charges and after a hearing.  The term of any commissioner who ceases to hold the qualifications required shall terminate when a successor may be duly appointed.  Vacancies occurring in the office of a commissioner from any reason or cause shall be filled for the unexpired term in the same manner as for a full term appointment.