Learn about the different zones of the open ocean, the pelagic biome, and what organisms call each zone home.

Explore photos, watch video clips, and learn about the aquatic biome located above the continental shelf. [8:37]

Read about the different zones and life in the deep sea as well as watch videos and examine photos of this aquatic biome. [5:54]

Learn about the coastal ecosystem. Find out about plants, animals, adaptations, and conservation efforts.

Learn about the oceanic pelagic ecosystem. Find out about plants, animals, adaptations, and conservation efforts.

Learn all about the abyssal ocean ecosystem. Find out about plants, animals, adaptations, and conservation efforts.

Learn about the coral reef ecosystem. Find out about plants, animals, adaptations, and conservation efforts.

Learn about the intertidal ecosystem. Find out about plants, animals, adaptations, and conservation efforts.

Explore saltwater ecosystems around Earth. Learn about oceans, estuaries, shores, and more.

Homepage for the massive wetlands restoration project in San Francisco Bay. History, objectives, and benefits of the project are described.

Illustrated tutorial explains estuary ecosystems. Animations and illustrations help students become more familiar with the plant and animal communities which make up this coastal habitat.

Try these five multiple-choice questions about aquatic ecosystems. After answers are submitted, students can review their mistakes.