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Louisiana · Livingston, Tangipahoa, St. John the Baptist County · Lake

Lake Maurepas

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

8 species with advisories · contaminants: Mercury

What's safe to eat from Lake Maurepas

Bigmouth Buffalo

Mercury

SizeWhoGuidance
All sizes Women who may become pregnant & children under 15 For women who may become pregnant, pregnant or breastfeeding women, and children under 15: limit to two meals per month due to elevated Mercury.

Source: official advisory· updated 2026-09-22

Black Crappie

Mercury

SizeWhoGuidance
All sizes Women who may become pregnant & children under 15 For women who may become pregnant, pregnant or breastfeeding women, and children under 15: limit to two meals per month due to elevated Mercury.

Source: official advisory· updated 2026-09-22

Bowfin

Mercury

SizeWhoGuidance
All sizes Women who may become pregnant & children under 15 For women who may become pregnant, pregnant or breastfeeding women, and children under 15: limit to two meals per month due to elevated Mercury.

Source: official advisory· updated 2026-09-22

Flathead Catfish

Mercury

SizeWhoGuidance
All sizes Women who may become pregnant & children under 15 For women who may become pregnant, pregnant or breastfeeding women, and children under 15: limit to two meals per month due to elevated Mercury.

Source: official advisory· updated 2026-09-22

Freshwater Drum

Mercury

SizeWhoGuidance
All sizes Women who may become pregnant & children under 15 For women who may become pregnant, pregnant or breastfeeding women, and children under 15: limit to two meals per month due to elevated Mercury.

Source: official advisory· updated 2026-09-22

Largemouth Bass

Mercury

SizeWhoGuidance
All sizes Women who may become pregnant & children under 15 For women who may become pregnant, pregnant or breastfeeding women, and children under 15: limit to two meals per month due to elevated Mercury.

Source: official advisory· updated 2026-09-22

Warmouth

Mercury

SizeWhoGuidance
All sizes Women who may become pregnant & children under 15 For women who may become pregnant, pregnant or breastfeeding women, and children under 15: limit to two meals per month due to elevated Mercury.

Source: official advisory· updated 2026-09-22

Yellow Bass

Mercury

SizeWhoGuidance
All sizes Women who may become pregnant & children under 15 For women who may become pregnant, pregnant or breastfeeding women, and children under 15: limit to two meals per month due to elevated Mercury.

Source: official advisory· updated 2026-09-22

Is it legal to keep?

These are Louisiana'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 10 Year-round Same as open
Black Crappie 50 Year-round Same as open
Bluegill 50 Year-round Same as open
Channel Catfish 100 Year-round Same as open
Striped Bass 5 Year-round Same as open

Official rules: Louisiana — Louisiana WLF

About this water

State
Louisiana
County
Livingston, Tangipahoa, St. John the Baptist
Type
Lake
Location
30.2505, -90.5018
Advisory source
Louisiana Dept. of Environmental Quality — Fish Consumption Advisories