What is a potential outcome of not managing stagnant water bodies effectively?

Not managing stagnant water bodies effectively can lead to a higher likelihood of pest infestations. Stagnant water creates an ideal habitat for various pests, including mosquitoes and aquatic weeds. When water is not aerated or circulated, it can become a breeding ground for these pests, as they thrive in still environments. Additionally, stagnant water often lacks natural predators that help control pest populations, further exacerbating the situation.

While increased fish populations may initially seem like a possibility, stagnant conditions can lead to reduced oxygen levels, negatively affecting fish health in the long term. Decreased water clarity is a common issue in stagnant waters due to the accumulation of organic matter and algae blooms, but it doesn't necessarily lead to direct pest issues. Lastly, while improved recreational activities might be a concern for well-managed water bodies, stagnant water typically poses safety hazards and decreases the desirability of these areas for such activities.