Let a chorus of a thousand angels break forth in song. The DFG Web site confirms that *recreational* Dungeness crab season for the *entire* California coast opens tomorrow. (In previous years, NorCal north of Mendocino had a later opener than the rest of the state.) The site also lists mussel season as "open" as of 10/31 -- although the traditional season is November through May. Time to get out to the coast and earn your dinner .....
PS: The definitive post on mussel harvesting was by the incomparable Melanie Wong, some time back. It's a classic -- and still accurate. Use the search function (Wong + mussels) to grab it.