Spawns in spring (February-June depending on location), triggered by longer days and water warming past about 15 °C, with spawning at about 21-26 °C. Sticky eggs are laid on aquatic vegetation. Matures at about 4 years.
Adults.
Ponds.
Spring warming.
Thousands of eggs (one study averaged 13,789 per female); eggs are sticky, about 2.5 mm, attached to plants, and hatch in about a week. Eggs may be toxic to some animals.
Live food then fish.
Females are generally larger than males, with longer bodies and longer snouts.