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oceans

Published on Nov 19, 2015

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PRESENTATION OUTLINE

1.

oceans

the ultimate aquatic ecosystems
Photo by allyaubry
2.

sunlight

usable sunlight penetrates only about 330ft
Photo by drbob97
3.

open ocean

least productive of all ecosystems
Photo by David De Lossy
4.

plankton

primary food source
Photo by JesseClaggett
5.

ocean depths

primary food source consists of dead organisms
Photo by gnews pics
6.

ocean threats

unfortunately there is a big list
Photo by USFWS/Southeast
7.

threats

  • fertilizer runoff
  • industrial waste and sewage
  • overfishing
  • discarded items from boats
  • ...just to name a few
8.

arctic ecosystem

birds, whales & seals feed on plankton
Photo by Ablestock.com
9.

antarctic ecosystem

only continent not colonized by humans
Photo by NASA Goddard Photo and Video

Todd LaVogue

kidacademy.org