California · Marin County · Coastal

Tomales Bay

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

8 species with advisories · contaminants: Mercury

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 Tomales 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 Tomales Bay

Bat Ray

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

California Halibut

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

Jacksmelt

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

Leopard 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

Pacific Angel 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

Red Rock Crab

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

Smoothhound Brown Shark

Mercury

SizeWhoGuidance
All sizes Women 50 and older and men 18 and older Do not eat 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

Surfperch

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

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

Getting on the water

Access points from OpenStreetMap contributors.

About this water

State
California
County
Marin
Type
Coastal
Location
38.1529, -122.9041
Advisory source
California OEHHA — Fish Consumption Advisories