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  • What other “P-L-A-N” word do you know that is a “drifter” or “wanderer”? (Planets) Copepods are the real “Plankton” on Sponge Bob
  • Which are autotrophs and which are heterotrophs in these pictures?
  • 1-4) Dinoflagellates (whoa! Plants with tails!) 5-9) Diatoms Bioluminescence (quick): http://www.youtube.com/watch?v=pGgWYijK_ig&feature=related#
  • Reminder: What do plants need? Light!
  • Upper layers of the ocean, also introduce benthos and nekton
  • Red Tide Turtle Deaths: http://www.cfnews13.com/MediaPlayer2/MediaPlayer.htm?video=1211RedTideUpdate_121120070445&cat=Local&title=Red Tide Turtles
  • Ctenophore 2-3) mollusk pteropods 4) euphausid shrimp 5) amphipod 6) copepod 7) chaetognath
    http://www.answers.com/topic/plankton
  • Can you tell which are the Autotrophs and which are the Heterotrophs?
  • These photos are krill, copepods, and jellies (all mero). Then what do meroplankton do after their done drifting? Crawl (crabs, sea stars, lobsters, snails), swim (fish), burrow (worms, clams)
  • Sea star (crawl), Snail veliger larvae (crawl), lobster larvae (crawl) crab zoea larvae (crawl), fish larvae (swim)
  • Why don’t you catch fish in a plankton net?
  • Holo- or Mero- too (Holo)

Transcript

  • 1. What Do You Really Know About Plankton? Name means: “Drifters” or “Wanderers” So. . .are they autotrophs or heterotrophs? They can be either one!
  • 2. Autotrophs vs. Heterotrophs Most autotrophs use sunlight to make energy 6 H20 + 6 CO2 +solar energy--> C6H12O6 + 6 O2 Heterotrophs eat autotrophs and other heterotrophs to obtain energy
  • 3. Who are the Marine Autotrophs? Tiny marine plants called Phytoplankton– producers in the oceanic food web
  • 4. Different wavelengths penetrate to different depths, So notice that all wavelengths other than blue get absorbed in the water above 100 m Plankton
  • 5. Where are Phytoplankton found?
  • 6. Phytoplankton are found in the photic zone (upper part of the ocean)
  • 7. Weird Phytoplankton Fact: Some phytoplankton can be very dangerous when they “bloom” (reproduce rapidly)
  • 8. Phytoplankton Diatoms & Dinoflagellates Silica-glassy case
  • 9. Phytoplankton cont. Diatoms -common in colder waters -silica based bodies (glassy) (siliceous) -when they die and sink, form Diatomaceous ooze Dinoflagellates -common in warmer waters -two tails (why?) -some light up (bioluminescence) -some live symbiotically with corals (Zooxanthellae) -when they die and sink, form cysts and can cause harmful algal blooms (HAB’s)
  • 10. Who are the Marine Heterotrophs? (Not always) tiny marine animals called Zooplankton– consumers in the oceanic food web
  • 11. Reminder: Zooplankton are not always tiny, but they are drifters!
  • 12. Typical Marine Food Web:
  • 13. More Vocabulary Plankton can be divided into lifestyles: 1)Meroplankton , which merely spend SOME of their lives as drifters and 2) Holoplankton, which spend their WHOLE lives drifting
  • 14. Guess what these Meroplankton “Grow Up” to be” and what they do when they’re done with the “drifter” lifestyle
  • 15. How do we “hunt” for plankton?
  • 16. So is Plankton from Sponge Bob Zooplankton or Phytoplankton?