Why are pike fry so dangerous to muskie fry?
It is a pure arithmetic ambush. Pike spawn at 4–10 °C (40–50 °F) and muskie at 9–15 °C (48–59 °F), so by the time muskie eggs hatch, pike fry from the same bays are two to four weeks old — 3–5 cm (1–2 in) of fast, gape-ready predator whose ideal prey size is exactly a newly hatched muskie. Both species' fry are obligate fish-eaters within weeks, but only one side gets to do the eating. Studies of failed muskie recruitment repeatedly point at this nursery overlap, more than adult competition or habitat, and it is the standard mechanism cited when pike introductions collapse muskie lakes.
Pour tout comprendre
Cette réponse fait partie d'une leçon complète — montages, schémas et explications.
Autres questions sur Fraie
Même sujet, autres espèces
- How deep do crappie spawn? — Crappie
- How do I find largemouth beds? — Largemouth Bass
- Do perch guard their eggs like crappie or bass do? — Yellow Perch
- What do spring water levels have to do with pike conservation? — Northern Pike
- Where do smallmouth build their nests? — Smallmouth Bass
- Do trout guard their eggs or young like bass do? — Trout (Rainbow · Brook · Lake)
- Why do walleye have boom and bust year-classes? — Walleye