Reproduction and Growth of Smallmouth Bass, <i>Micropterus dolomieui</i>, in a Precambrian Lake

Gary E. Turner, Hugh R. MacCrimmon

Journal of the Fisheries Research Board of Canada · 1970 · 23 citations · 0 references

Concepts

Abstract

Nest building by smallmouth bass in Tadenac Lake, Ontario, began in early June at 15–18 C and lasted less than 1 week. Nests were constructed at 0.3–2.4 m from the leaward shore. Egg incubation lasted 4 days at 15.2–18.2 C. Postlarval fish rose off nests at 8–11 days after hatching. Schools of young fish dispersed at 19–28 days. Both sexes matured at ages IV (18.7–25.0 cm) to VI (26.4–36.6 cm). Oldest fish (41.2 cm) were age IX. Temperature and shelter in the epilimnion determined summer distribution of fish of all ages. Annual littoral harvest (1963–66) averaged 4.0 k/ha, or 1.1 fish per angling hour.