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Commercial Rock Crab Fishery Opens from Cape Mendocino to Humboldt Bay

Following the recommendation of state health agencies, the California Department of Fish and Wildlife (CDFW) announced today that it will be opening the commercial rock crab fishery from near Cape Mendocino, Humboldt County (40° 30.00’ N. Lat.) north to the Humboldt Bay entrance at the north jetty (40° 46.15’ N. latitude), including all ocean waters of Humboldt Bay.

On Nov. 8, 2016, CDFW Director Charlton H. Bonham submitted an emergency rulemaking to the Office of Administrative Law to close the commercial rock crab fishery north of Pigeon Point, San Mateo County upon the recommendation of the state Office of Environmental Health Hazard Assessment (OEHHA). Since that time, portions of the fishery were sequentially reopened by the director in consultation with OEHHA under new authority granted by Fish and Game Code Section 5523. The commercial fishery was last modified in April 2018, when the fishery was opened between the Sonoma/Mendocino County line and the Mendocino/Humboldt County line.

The commercial rock crab fishery remains closed in all waters from the Mendocino/Humboldt County line (40° 00.00’ N. Lat.) to 40° 30.00’ N. Lat. (near Cape Mendocino, Humboldt County) and from the north jetty of the Humboldt Bay entrance (40° 46.15’ N. Lat.) to the California/Oregon border (42° 00.00’ N. Lat.). This closure shall remain in effect until the director of OEHHA, in consultation with the director of California Department of Public Health (CDPH), determines that domoic acid levels no longer pose a significant risk to public health and recommends the fishery be opened. CDFW will continue to coordinate with fishermen, CDPH, and OEHHA to test domoic acid levels in rock crab within the closured area.

State and federal laws prohibit the commercial distribution of seafood products that contain domoic acid levels above the federal action level of 30 parts per million in the viscera. The recreational fishery for rock crab remains open statewide with a warning from CDPH to avoid consuming the viscera of crab caught between the Mendocino/Humboldt County line and Cape Mendocino, Humboldt County and from the north jetty of the Humboldt Bay entrance to the California/Oregon border.

Domoic acid is a potent neurotoxin produced by a naturally occurring marine alga, whose levels can be increased under certain ocean conditions, and can accumulate in shellfish, other invertebrates and sometimes fish. It causes illness and sometimes death in a variety of birds and marine mammals that consume affected organisms. At low levels, domoic acid exposure can cause nausea, diarrhea and dizziness in humans. At higher levels, it can cause persistent short-term memory loss, seizures and death.

For More Information:
Memo from Office of Environmental Health Hazard Assessment (5/23/2019)
CDFW Director’s Opener Declaration (5/23/2019)
www.wildlife.ca.gov/Fishing/Ocean/Health-Advisories
www.wildlife.ca.gov/crab