A fisher shows off a brown trout caught along the Paint Creek in Michigan. Photo credit: Clinton River Watershed Council.
A fisher shows off a brown trout caught along the Paint Creek in Michigan. Photo credit: Clinton River Watershed Council.

Fish Consumption advisories are the result of a legacy of pollution that has led to the widespread presence of long-lived chemicals in Michigan’s environment. Some of these chemicals make their way into fish and can harm people when they eat contaminated fish. The Michigan Department of Health and Human Services has developed fish consumption guidelines to limit people’s exposure to these hazardous chemicals. This indicator assesses how prevalent fish consumption advisories are in southeast Michigan.

How is it scored?

Fish species were scored based on the recommended number servings (Table 1). The average score for all species and sampling areas within a watershed were averaged to calculate watershed scores. Watershed scores were population-weighted to calculate an overall score for the region. 

Table 1. Scoring based on the number of servings as recommended in the Michigan Department of Health and Human Service’s Eat Safe Fish Guide for 2022.

Servings Per Month Thresholds

Report Card Score

Do Not Eat

0

Limited

10

6 per year

20

1 per month

30

2 per month

40

4 per month

50

8 per month

70

12 per month

85

16 per month

100

Data source: Eat Safe Fish Guide 2022 for Southwest and Southeast Michigan from the Michigan Department of Health and Human Services