Why are swamps more productive that streams?

Swamps are more productive than streams because they have higher levels of nutrients and organic matter, which support the growth of a wide variety of plant and animal species. The slow-moving water and saturated soil in swamps create a rich environment for plants to thrive and provide habitat for many aquatic organisms. Additionally, swamps act as natural filters, trapping sediment and contaminants that can negatively impact water quality in streams.