Cal. Fish & Game Code § 8598.4

Notwithstanding any other provision of this code, the director may close any portion of the fishery established under this article or any area in which this fishery is conducted, if, upon written finding, the director determines the action is necessary to protect any organisms listed in subdivision (a) of Section 8597 or the environment in which those organisms are located. The director shall reopen a fishery or any fishing areas previously closed pursuant to this section if the director determines that the conditions which necessitated the closure no longer exist.