Silver Lamprey fishing in Canada

Ichthyomyzon unicuspis

Documented at: 50 waters
Primary species at: 0 waters
Ideal water temp: 9°C
Active range: 4–15°C

Best silver lamprey waters today

Scored for 2026-09-14 from live weather, water temperature and this species’ own thermal range.

How to fish for silver lamprey

Silver lamprey are a native parasitic lamprey that, as adults, attach to and feed on the blood of larger fish - but as a native species that co-evolved with its hosts, it generally exists in balance with them and does not cause the devastation the invasive sea lamprey does. They spend years as harmless filter-feeding larvae in clean stream sediment before transforming. They aren't an angling target, and their presence is a normal part of a native fish community rather than an alarm. On a location page, a silver lamprey is best distinguished from the invasive sea lamprey - the native species is part of a balanced system, while the sea lamprey is a destructive invader.

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