What are two factors that can cause sunfish populations to exceed normal rates?

Sunfish populations can thrive and potentially exceed normal rates due to specific ecological factors. The correct answer highlights two critical influences: increased weed cover and decreased predators.

Increased weed cover in aquatic ecosystems provides essential habitat and spawning areas for sunfish, leading to greater reproductive success and survival rates of young fish. Dense vegetation offers shelter from predators and creates a rich environment for foraging, promoting the overall growth and health of the sunfish population.

Additionally, reduced predator presence allows sunfish to thrive. With fewer natural enemies, sunfish have a better chance of survival and reproduction. Predators typically help maintain a balance in fish populations by controlling numbers and preventing overpopulation. When predators are decreased, sunfish can reproduce more frequently and in larger numbers, leading to a surge in their population.

This combination of abundant habitat and reduced predation can significantly enhance sunfish populations beyond normal levels, as they take advantage of the favorable living conditions.