Oceanic Food Chain

The video explores the oceanic food chain, starting with phytoplankton as primary producers. It describes how Pacific herring feed on plankton blooms, attracting predators like dolphins, sea birds, and humpback whales. Sea lions, another predator, become prey for orcas. The feeding frenzy continues until winter, when plankton diminish, affecting the entire food chain.

What challenges do sea lions face in the Alaskan waters?

Explain the impact of orcas on the sea lion population in the food chain.