Nipigon Cisco
Known far better to fisheries biologists than to anglers, the Nipigon Cisco is a deepwater whitefish of Lake Nipigon and a handful of associated inland lakes near the Canada–US border.
While its relatives in the Laurentian Great Lakes were decimated by overfishing and invasive species, the Lake Nipigon population survives largely intact — a rare remnant of a once-diverse cisco complex.
Scientific Name: Coregonus nipigon
- Taxonomically distinct from the common Cisco (Coregonus artedi) and the Shortjaw Cisco, though separating these closely related deepwater ciscoes reliably requires expert examination — not a field ID.
- Slender and silvery in the manner of the deepwater cisco group, with a forked tail and small mouth; the features that matter most for identification are subtle gill raker and jaw proportions.
- No size data exists in the scientific literature; as a rarely encountered deepwater fish, typical length and weight remain undocumented.
What to know
Habitat Distribution
- Lake Nipigon and a small number of associated inland lakes form the core of this species' range, with presence also documented near the Canada–US border in the Lake Nipigon basin.
- Lacustrine habitat in cold, deep, oligotrophic lakes — the kind of thermally stable, well-oxygenated water that supports cold-adapted invertebrate communities at depth.
- Potentially sensitive to acid deposition, which can shift water chemistry and alter the invertebrate prey base these fish depend on.
Specific Spots
- The main basin depths of large, cold, clear lakes — this species stays where temperatures are stable and light is minimal, well below the zone most anglers fish.
- Any incidental encounter is most likely during deep jigging or ice fishing in the main basin of Lake Nipigon; the species is not targeted and is studied primarily through scientific netting.
Nipigon Cisco FAQ
Answers from onWater's species guide.
What are the best lures and bait for Nipigon Cisco?
No established angling methods exist for this species. It is studied through scientific netting and survey work, not recreational fishing.
What do Nipigon Cisco eat?
No diet data has been documented for this species in available scientific sources. As a deepwater cisco, cold-adapted invertebrates and zooplankton are the presumed forage, consistent with the broader cisco complex, but specific prey items are unconfirmed.
Where do Nipigon Cisco live?
Lake Nipigon and a small number of associated inland lakes form the core of this species' range, with presence also documented near the Canada–US border in the Lake Nipigon basin.
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