What does plankton provide?

Plankton provides essential contributions to marine ecosystems, serving as the foundation of the aquatic food web. Phytoplankton, which are microscopic plants, produce oxygen through photosynthesis and are a primary source of food for various marine organisms. Zooplankton, the animal counterpart, feeds on phytoplankton and, in turn, serves as food for larger predators, including fish and whales. Overall, plankton plays a crucial role in nutrient cycling and supporting biodiversity in oceanic environments.