California · Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano, Sonoma County · Coastal

San Francisco Bay

Is the fish you caught here safe to eat? Below is every consumption advisory on file for San Francisco Bay, by species and size, in plain English — plus what's legal to keep.

18 species with advisories · contaminants: Mercury, PCBs

California also has statewide guidance

California publishes rules that apply to coastals across the state — 34 recommendations covering 17 species — in addition to anything listed for San Francisco Bay below.

Strictest statewide rule: Rockfish: Black And Yellow, China, Copper, Gopher — For women 18–49 and children 1–17: do not eat due to elevated Mercury.

See all California statewide guidance →

What's safe to eat from San Francisco Bay

American Shad

Mercury

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to four meals per week.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: limit to two meals per week due to elevated Mercury.

Source: official advisory· updated 2026-11-06

Barred Surfperch

Mercury

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to three meals per week due to elevated Mercury.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: limit to one meal per week due to elevated Mercury.

Source: official advisory· updated 2026-11-06

Black Perch

Mercury

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to three meals per week due to elevated Mercury.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: limit to one meal per week due to elevated Mercury.

Source: official advisory· updated 2026-11-06

California Halibut

Mercury

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to two meals per week due to elevated Mercury.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: limit to one meal per week due to elevated Mercury.

Source: official advisory· updated 2026-11-06

Chinook Salmon

Mercury PCBs

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to four meals per week.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: limit to two meals per week due to elevated Mercury and PCB.

Source: official advisory· updated 2026-11-06

Jacksmelt

Mercury PCBs

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to two meals per week due to elevated Mercury and PCB.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: limit to one meal per week due to elevated Mercury and PCB.

Source: official advisory· updated 2026-11-06

Mississippi Silverside

PCBs

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Do not eat due to elevated PCB.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: do not eat due to elevated PCB.

Source: official advisory· updated 2026-11-06

Northern Anchovy

PCBs

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to one meal per week due to elevated PCB.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: limit to one meal per week due to elevated PCB.

Source: official advisory· updated 2026-11-06

Pacific Sardine

PCBs

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Do not eat due to elevated PCB.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: do not eat due to elevated PCB.

Source: official advisory· updated 2026-11-06

Rubberlip Surfperch

Mercury

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to three meals per week due to elevated Mercury.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: limit to one meal per week due to elevated Mercury.

Source: official advisory· updated 2026-11-06

Shark

Mercury

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to one meal per week due to elevated Mercury.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: do not eat due to elevated Mercury.

Source: official advisory· updated 2026-11-06

Shiner Perch

PCBs

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Do not eat due to elevated PCB.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: do not eat due to elevated PCB.

Source: official advisory· updated 2026-11-06

Striped Bass

Mercury PCBs

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to one meal per week due to elevated Mercury and PCB.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: do not eat due to elevated Mercury and PCB.

Source: official advisory· updated 2026-11-06

Topsmelt

PCBs

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Do not eat due to elevated PCB.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: do not eat due to elevated PCB.

Source: official advisory· updated 2026-11-06

Walleye Surfperch

PCBs

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to one meal per week due to elevated PCB.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: limit to one meal per week due to elevated PCB.

Source: official advisory· updated 2026-11-06

White Croaker

PCBs

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to one meal per week due to elevated PCB.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: limit to one meal per week due to elevated PCB.

Source: official advisory· updated 2026-11-06

White Sturgeon

Mercury PCBs

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to one meal per week due to elevated Mercury and PCB.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: do not eat due to elevated Mercury and PCB.

Source: official advisory· updated 2026-11-06

White Surfperch

Mercury

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Limit to three meals per week due to elevated Mercury.
Women 18–49 and children 1–17 For women 18–49 and children 1–17: limit to one meal per week due to elevated Mercury.

Source: official advisory· updated 2026-11-06

How to prepare fish from San Francisco Bay

Some contaminants build up in fat and skin, so cleaning and cooking can lower your exposure. Others — mercury and PFAS — are in the muscle itself and trimming does nothing.

PCBs

  • Skin the fish — most of the contaminant sits in the fat just under the skin.
  • Trim the fatty areas away: the belly flap, the top of the back, and the dark lateral line down each side.
  • Cook on a rack — grill, broil, or bake — so the fat drips off the fillet.
  • Throw the drippings out; don't use them for soup, sauce, or chowder.
  • Choose smaller, younger fish — they've had less time to build it up.

Is it legal to keep?

These are California's statewide limits — a water-specific rule may override them. Always verify the current regulations before keeping a fish.

SpeciesSizeDaily limitOpen seasonKeep season
Largemouth Bass — 5 Year-round Same as open
Smallmouth Bass — 5 Year-round Same as open
Striped Bass 18" min 2 Year-round Same as open
Rainbow Trout — 5 Year-round Same as open
Black Crappie — 25 Year-round Same as open
Channel Catfish — 10 Year-round Same as open

Official rules: California — California DFW

About this water

State
California
County
Alameda, Contra Costa, Marin, Napa, San Francisco, San Mateo, Santa Clara, Solano, Sonoma
Type
Coastal
Location
37.6778, -122.2802
Advisory source
California OEHHA — Fish Consumption Advisories