What role do algae play in this food web bets?

Algae, a microrganism (a tiny organism) serves as food for small aquantic creatures such as krill and shrimp, and these small organisms serve as food for larger animals such as whales and manitees. Basically, algae serves as food for small animals, and these animals serve as food for large animals, which keeps the food chain balanced, with the provider, in this case the algae, at the bottom, and the primary (manitees) and secondary (whales) consumers are at the middle and the top.