Every species with an advisory recorded anywhere in the province. The count is advisory rows on file across all waterbodies.
Northern Pike 1548 waterbodies · Arsenic, Arsenic, Mercury, Arsenic, Merc
Walleye 1365 waterbodies · Arsenic, Arsenic, Mercury, Chromium, Dio
Lake Trout 669 waterbodies · Arsenic, Arsenic, Mercury, Arsenic, Merc
White Sucker 839 waterbodies · Arsenic, Chromium, Dioxins/Furans, Dioxi
Lake Whitefish 535 waterbodies · Arsenic, Arsenic, Chromium, Arsenic, Mer
Burbot (Ling) 258 waterbodies · Arsenic, Arsenic, Mercury, Arsenic, Merc
Yellow Perch 467 waterbodies · Arsenic, Chromium, Lead, Mercury, Mercur
Common Carp 126 waterbodies · Dioxins/Furans, Dioxins/Furans, PCB, Dio
Brook Trout 241 waterbodies · Arsenic, Lead, Mercury, Mercury, Arsenic
Brown Bullhead 204 waterbodies · Arsenic, Arsenic, Mercury, Dioxins/Furan
Rainbow Trout 73 waterbodies · Dioxins/Furans, Mercury, Mercury, PCB, M
Rock Bass 224 waterbodies · Arsenic, Lead, Mercury, Mercury, PCB, Me
Black Crappie 167 waterbodies · Mercury, Mercury, PCB, Mercury, PFAS, PC
Brown Trout 36 waterbodies · Mercury, Mercury, PCB, Mercury, PCB, PFA
Chinook Salmon 40 waterbodies · Mercury, Mercury, PCB, Mercury, PCB, PFA
Sauger 65 waterbodies · Mercury, Mercury, PFAS, Mercury, Seleniu
Pumpkinseed 136 waterbodies · Lead, Mercury, Mercury, Arsenic, Mercury
Muskellunge 57 waterbodies · Mercury, Mercury, PCB, Mercury, PCB, PFA
Bluegill 96 waterbodies · Lead, Mercury, Mercury, PCB, Mercury, PC
Coho Salmon 23 waterbodies · Mercury, Mercury, PCB, Mercury, PCB, PFA
Lake Sturgeon 15 waterbodies · Arsenic, Mercury, Mercury, Arsenic, Merc
Splake 33 waterbodies · Mercury, Mercury, PCB, Mercury, PFAS, Me
White Perch 25 waterbodies · Mercury, Mercury, PCB, Mercury, PCB, PFA
White Bass 18 waterbodies · Mercury, Mercury, PCB, Mercury, PCB, PFA
Mooneye 18 waterbodies · Dioxins/Furans, Mercury, Mercury, PCB, M
Pink Salmon 13 waterbodies · Mercury, PCB, Mercury, PFAS, PCB, PCB, P
Rainbow Smelt 38 waterbodies · Mercury, Mercury, PCB, PCB, PCB, PFAS, P
White Crappie 13 waterbodies · Mercury, Mercury, PCB, Mercury, PFAS, PC
Bowfin 8 waterbodies · Mercury, Mercury, PCB, Mercury, PCB, PFA
Goldeye 7 waterbodies · Mercury, PFAS, Precautionary, Selenium
Goldfish 5 waterbodies · Mercury, PCB, PCB, PCB, PFAS, PFAS, Prec
Fallfish 3 waterbodies · Mercury, Mercury, PFAS, PFAS, Precaution
Tench 1 waterbodies · Mercury, PFAS
Species with the most advisory rows A count of rows recorded — not a ranking of which fish are worse to eat.
Species with the most advisory rows on file A count of advisory rows recorded for the species — not a ranking of which fish are worse to eat. Northern Pike Northern Pike: 24993 advisory rows 24,993 Walleye Walleye: 23552 advisory rows 23,552 Lake Trout Lake Trout: 11209 advisory rows 11,209 Smallmouth Bass Smallmouth Bass: 9805 advisory rows 9,805 White Sucker White Sucker: 8088 advisory rows 8,088 Lake Whitefish Lake Whitefish: 5297 advisory rows 5,297 Largemouth Bass Largemouth Bass: 3578 advisory rows 3,578 Burbot (Ling) Burbot (Ling): 2748 advisory rows 2,748 Yellow Perch Yellow Perch: 2509 advisory rows 2,509 Common Carp Common Carp: 2262 advisory rows 2,262 Brook Trout Brook Trout: 2103 advisory rows 2,103 Cisco (Lake Herring) Cisco (Lake Herring): 1805 advisory rows 1,805 Brown Bullhead Brown Bullhead: 1416 advisory rows 1,416 Rainbow Trout Rainbow Trout: 1035 advisory rows 1,035 Rock Bass Rock Bass: 990 advisory rows 990 Black Crappie Black Crappie: 984 advisory rows 984 Source: Guide to Eating Ontario Fish advisory database, Ontario.
Scroll the chart sideways to see all of it.
Source: Ontario — Guide to Eating Ontario Fish: Advisory Database .