What type of organism do zebra mussels filter from water but do not consume?

Zebra mussels are known for their filtering capabilities, and their feeding mechanism allows them to filter various organisms from the water. However, while they filter out plankton, specifically beneficial phytoplankton, they do not consume all types of plankton indiscriminately. Zebra mussels primarily feed on certain small phytoplankton and organic matter, and they tend to reject larger particles and non-food items that they filter.

In the case of detritus, bacteria, and algae, zebra mussels have different interactions. They can benefit from consuming small algae but may filter bacteria without processing it as a food source. Understanding the feeding mechanisms of zebra mussels and their selective consumption is essential for grasping their role in aquatic ecosystems. This selective feeding can lead to significant ecological changes, particularly in freshwater systems where they are invasive.