What is the role of zooplankton in the marine food web?

Zooplankton plays a crucial role in the marine food web as they serve as a primary source of food for many marine organisms. They are microscopic animals that float and drift in the water column, and they include various organisms such as tiny crustaceans, jellyfish, and larvae of many marine species.

Zooplankton are considered primary consumers as they feed on phytoplankton, which are microscopic plants that perform photosynthesis. By consuming phytoplankton, zooplankton transfer energy from the lower trophic levels to higher trophic levels in the food web.

Additionally, zooplankton are an essential food source for many larger marine organisms, including fish, whales, and seabirds. They serve as a link between the primary producers (phytoplankton) and higher-level consumers, transferring energy and nutrients throughout the ecosystem.

Furthermore, zooplankton populations are influenced by various factors such as temperature, nutrient availability, and predation. Changes in zooplankton abundance and composition can have cascading effects on the entire food web, impacting the abundance and distribution of other organisms.

In summary, the role of zooplankton in the marine food web is vital as they act as primary consumers, transferring energy from phytoplankton to higher trophic levels, and serving as a crucial food source for many marine organisms.