How does plankton form on basis of large food webs?

Plankton forms the foundational level of aquatic food webs, consisting of tiny organisms that drift in water. Phytoplankton, the plant-like component, photosynthesize and produce oxygen while serving as primary producers, converting sunlight and nutrients into energy. Zooplankton, the animal-like component, feed on phytoplankton and serve as a crucial food source for larger organisms, thus linking various trophic levels in the food web. This dynamic interaction supports the entire aquatic ecosystem, influencing biodiversity and energy transfer.