Which fish pollock or herring meets the energy need of a Stellar sea lion?

Pollock is generally a more suitable option for meeting the energy needs of Stellar sea lions compared to herring. Pollock has a higher caloric content and is often more abundant in certain regions, making it a preferred prey for these marine mammals. While herring is also an important food source, pollock provides better energy efficiency for Stellar sea lions, particularly in their foraging behaviors.