California · Monterey County · Coastal

Elkhorn Slough

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

6 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 Elkhorn Slough 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 Elkhorn Slough

<24 In Wide Bat Ray

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 one meal per week due to elevated Mercury.

Source: official advisory· updated 2026-11-06

?24 In Wide 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

Asian Clam

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 four meals per week.

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

Speckled Sanddab

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 four meals per week.

Source: official advisory· updated 2026-11-06

Surfperch

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 three meals per week due to elevated Mercury and PCB.

Source: official advisory· updated 2026-11-06

How to prepare fish from Elkhorn Slough

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

Getting on the water

Access points from OpenStreetMap contributors.

About this water

State
California
County
Monterey
Type
Coastal
Location
36.8120, -121.7785
Advisory source
California OEHHA — Fish Consumption Advisories