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North Channel (Lake Huron) — fish advisory record

18species with an advisory recorded
6contaminants named
264advisory rows on file

North side of Manitoulin Island|Côté nord de l'île Manitoulin

This site does not tell you how much fish to eat

The Guide to Eating Ontario Fish publishes, for each waterbody, species and size, how many meals of that fish are advised. Those meal numbers are not reproduced here, and this site does not give consumption advice.

The reason is specific. The published data records the advisory as a numeric code whose meaning is defined in the Guide's own codebook. Turning that number into "so many meals a month" without the codebook would be this site inventing health advice from a number it cannot read — and if it read the number wrongly, it would be telling people the wrong thing about fish they are about to eat.

So this site does the part it can do from the record alone: it tells you whether a waterbody carries an advisory, for which species, and which contaminant the advisory is named against. Then it hands you to the publisher for the numbers.

For the actual advice, read the guide: Guide to Eating Ontario Fish on ontario.ca. It is the authority. This site is not, and nothing here should be used as a substitute for it.

Species with an advisory recorded

For each species, the contaminants the advisory is recorded against, how many length categories are covered, and which population groups the Guide publishes a separate advisory for.

Advisory recorded for this waterbody, by species
SpeciesContaminant recordedLength categoriesPopulation groups
Burbot (Ling)PFAS9General, Sensitive
Chinook SalmonPCB9General, Sensitive
Cisco (Lake Herring)PFAS8General, Sensitive
Coho SalmonPCB PFAS5General, Sensitive
Common CarpPCB4General, Sensitive
Lake SturgeonPFAS1General, Sensitive
Lake TroutMercury, PCB Mercury, PCB, PFAS PCB PCB, PFAS PFAS13General, Sensitive
Lake WhitefishPFAS12General, Sensitive
Longnose SuckerPFAS6General, Sensitive
Northern PikeMercury, PFAS PFAS9General, Sensitive
Pink SalmonPFAS4General, Sensitive
Rainbow SmeltPFAS2General, Sensitive
Rainbow TroutPFAS10General, Sensitive
Round WhitefishPFAS6General, Sensitive
Smallmouth BassMercury, PFAS PFAS8General, Sensitive
WalleyeMercury, PFAS PFAS12General, Sensitive
White SuckerPFAS9General, Sensitive
Yellow PerchPFAS5General, Sensitive

The number of meals advised for each of these is in the Guide to Eating Ontario Fish — not on this page, and not on this site.

Contaminants recorded

The contaminants this waterbody's advisories are recorded against. This counts advisory rows, not risk.

Advisory rows by contaminantThe contaminants the advisories for this waterbody are recorded against.0100200300400500Mercury, PCB: 1Mercury, PCBMercury, PCB, PFAS: 3Mercury, PCB, Mercury, PFAS: 8Mercury, PFASPCB: 33PCBPCB, PFAS: 7PCB, PFASPFAS: 212PFASSource: 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.

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About this record

Which Ontario lakes and rivers carry a fish consumption advisory, for which species, and which contaminant the advisory is recorded against. The guide that publishes the meal advice is linked on every page.

Source: Ontario — Guide to Eating Ontario Fish: Advisory Database — Open Government Licence – Ontario. Data refreshes as published. Every page links the row it came from.

What this site is not. It is a copy of an official record. It is not a judgement about any business, building or person, and it is not advice. If the record is wrong, the source above is where it is corrected.