Coastal Ecology—Web of Life

Summary: This activity will give students a look at how all animals and plants in a system are interconnected and what can happen when just one organism is removed. Some of the discussion focuses on the sea otter- a species that is now extinct from the Oregon coast.

Concepts to teach: Food chains, Food webs, Interdependence, Endangered Species


  • Define interconnectedness and explain its ecological implications.
  • Use vocabulary related to food webs and ecology.
  • Discuss the plight of the sea otter and how that has affected systems off of Oregon’s coast.

6.2L.2, 7.2L.2, 8.2L.1

Specific Objectives:

  1. Explain why threatened or endangered species are important to the ocean.
  2. Demonstrate an understanding of food web interactions.

Activity Links and Resources:


  • Assessments included in the OCEP Web of Life