Taken from the Cal. Fish & Game website: 
"Recreational Fisheries for Dungeness Crab and Rock Crab

• The recreational fishery for all rock crab species is open statewide. North of Bodega Bay, Sonoma County, the California Department of Public Health (CDPH) advises that consumers not eat the viscera (internal organs, also known as "butter" or "guts") of crabs. The viscera usually contain much higher levels of domoic acid than crab body meat. Review recent changes to recreational crab fishing regulations.
• The recreational Dungeness crab fishery is currently open statewide, and the California Department of Public Health (CDPH) has lifted its Dungeness crab consumption advisory statewide. However, CDPH still recommends not eating the viscera (internal organs, also know as "butter" or guts) of Dungeness crab as a precaution. The viscera usually contain much higher levels of domoic acid than crab body meat. Review recent changes to recreational crab fishing regulations."
• Feel free to call the Domoic Acid Fishery Closure Information Line at (831) 649-2883, for the most up-to-date information.

Due to population concerns, the 2017 season for Red Abolone will be shortened and the take limit reduced.

The 2017 season will open May 1 and close on Oct. 31.
The Calendar Year Limit has also been reduced to 12 (down from last year's 18.) And please note: "no more than nine abalone may be taken south of the boundary between Sonoma and Mendocino counties."