Do pike ever eat insects, leeches and other invertebrates?
Young pike do, briefly; adults do when the lake leaves them no choice. A pike fry starts on zooplankton, moves to insect larvae and turns to fish within its first weeks to months — one of the fastest switches among our gamefish. For a normal adult, invertebrates are a trace. The instructive exception comes from small, fish-poor northern lakes, where pike have been documented living largely on leeches, scuds and big insect larvae because there is nothing else: those populations are thin, slow-growing and stunted. So an invertebrate-eating adult pike is not a feeding pattern to fish — it is a diagnosis of the lake. Fish eggs are not pike food either; it hunts the spawning suckers and ciscoes, not what they leave on the gravel.
The full story
This answer is one piece of a longer lesson — setups, diagrams and the reasoning behind it.
More questions about Diet
Same topic, other species
- What do crappie NOT eat? — Crappie
- Will largemouth pick up dead or motionless bait? — Largemouth Bass
- What do muskie eat in southern reservoirs that have no ciscoes or perch? — Muskellunge (Muskie)
- Why is a piece of worm such a reliable perch bait — do perch eat worms and leeches naturally? — Yellow Perch
- What do smallmouth eat in winter? — Smallmouth Bass
- Do trout eat suckers, sunfish or dead fish? — Trout (Rainbow · Brook · Lake)
- Do walleye eat bluegills, frogs — or their own young? — Walleye