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Oceanic Plankton

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Oceanic Plankton Lifestyles of the Microscopic & Overlooked How can something at the top be at the bottom? Answer: When you re a DIATOM! Phytoplankton (like diatoms ... – PowerPoint PPT presentation

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Title: Oceanic Plankton


1
Oceanic Plankton
  • Lifestyles of the Microscopic Overlooked

2
How can something at the top be at the bottom?
  • Answer When youre a DIATOM!
  • Phytoplankton (like diatoms) drift about near
    the surface of the sea, photosynthesizing as they
    go.
  • Phytoplankton are the basis of the whole oceanic
    food chain they are at the bottom of the energy
    pyramid!

3
Phytoplankton Blooms in the ocean
  • Nutrients
  • Sunlight
  • Plankton
  • Bloom!

4
The Trials of being a Marine plant
  • Salt balance
  • Fluctuating water level
  • A few Success stories
  • Mangroves
  • Saltwort
  • Seagrass

5
Kingdom Protista
  • Catch all group
  • In the Marine environment, includes
  • Seaweeds
  • Diatoms
  • Dinoflagellates
  • Seaweeds are actually algae NOT plants!
  • No roots
  • No vascular system
  • No seeds, flowers, or fruits

6
Types of Seaweeds
  • Rhodophyta (Red Algae)
  • Phaephyta (Brown Algae)
  • Chlorophyta (Green Algae)

7
Rhodophytes
  • Can grow at greater depth than other algaes
    why?

8
Phaephytes
  • Include the largest seaweed the Giant Kelp
  • and the Sargassumweed often washed up along the
    Texas coast.

9
Chlorophyta
  • Include the familiar green algae.

10
Killer Plankton The Red Tide
  • Some species can reach enormous population
    levels, robbing the water of all D.O., and
    infesting filter-feeders with a toxic substance
    that can kill people.

11
What does this picture have to do with plankton?
12
This!
Newly hatched crab larvae- ZOOPLANKTON
13
All marine invertebrates go through a
Zooplankton stage
Can you guess what animals these are?
http//www.imagequest3d.com/photos/zooplankton/
14
In summary
  • Plankton are critical to an oceans ecosystem
    health.
  • Being at the bottom of the food pyramid, they
    support everything else.
  • If you eat seafood, or eat anything made with
    seafood products, you are indirectly consuming
    plankton!
  • Soooooo

15
Have you hugged your plankton today?
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