2. We eat dead plants and animals
Decomposers
We eat dead plants and animals

3. Producers Herbivores We get energy from the sun (photosynthesis)4
We get energy from the sun (photosynthesis)
Herbivores 3
We eat plants and other producers

4. We eat herbivores and sometimes other carnivores2
We eat herbivores and sometimes other carnivores

5. San Diego Bay Food Web

6. San Diego Bay Food Web

7. San Diego Bay Food Web

8. Giant Kelp photo downloaded April 28, 2014 from http://upload
California, Channel Islands NMS. Photographer: Claire Fackler, CINMS, NOAA. |Source=[ sanc0063] |Date= :14 |
Brown Algae. Giant Kelp, common name. Scientific name, Macrocystis pyrifera.
Giant kelp is common along the coast of the eastern Pacific Ocean, from Baja California north to southeast Alaska, and is also found in the southern oceans near South America, South Africa, and Australia.
It is the largest seaweed in the world. It could grow 150 feet long at a rate of 2 feet per day.
Habitat for more than 700 species (i.e. fishes and invertebrates).
In a study near San Diego, California (USA), maximum lifespan recorded for a Macrocystis pyrifera was about five years (Dayton et al. 1992).
At the beginning of World War I, kelp was harvested in Chula Vista for gunpowder production. The building is now the Living Coast Discovery Center (
You can find alginate, and other brown algae compounds in ice cream, salad dressing, chocolate milk, shampoo, and other edible and cosmetics products.
More info here:
Kelp Forest

9. Kelp Forest Food Web
Sea urchin photo courtesy of NOAA library.

10. Kelp Forest Food Web