Chum Salmon
Invasive SpeciesFound in 4 lakes
Chum Salmon is documented in 4 lakes across our dataset — 4 in Michigan. Each state's natural-resources agency maintains an official "infested waters" roster that triggers boat-launch decontamination protocols. 4 lakes — narrow enough that aggressive containment is still on the table. Most upper-Midwest invasives that established here did so quietly over a decade before anyone noticed, so a low number today is not a guarantee for tomorrow.
The presence of Chum Salmon does not directly change a lake's LakeGrade rubric score — the grade measures the water itself, not the species inhabiting it. But invasive presence is a meaningful adjacent signal worth reading alongside the grade.
Lakes with Chum Salmon
| Lake | County | State | Grade | Depth |
|---|---|---|---|---|
| Square Lake Central Basin; Bloomfield Township | Oakland | MI | A | - |
| Square Lake | Oakland | MI | A | - |
| Upper Long Lake Northwest Basin; Bloomfield Township | Oakland | MI | B | - |
| Upper Long Lake | Oakland | MI | C | - |
Frequently Asked Questions
How many lakes have chum salmon?
Chum Salmon has been documented in 4 graded lakes: 4 in Michigan.
Does chum salmon affect water quality?
Invasive species can significantly affect lake ecosystems. They may alter nutrient cycling, displace native species, and change water clarity. Lakes with chum salmon should be monitored for changes in water quality over time.
Invasives Found With Chum Salmon
Source: EPA National Aquatic Resource Surveys, 2026.