Your SlideShare is downloading. ×
0
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
1 25-11
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

1 25-11

580

Published on

Published in: Technology, Health & Medicine
0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
580
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
31
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. The Wonderful World of Plankton
  • 2. What do we already know about Plankton?
    • Autotrophic
    • Primary producers
    • Important to life on earth
      • Produce oxygen
      • Consume carbon dioxide out of the atmosphere
    • Drifters
    • Phytoplankton and zooplankton
  • 3. Three types of plankton we will be studying
    • Diatoms
    • Dinoflagellates
    • Formaminiferans
    • ALL ARE EUKARYOTIC, SINGLE CELLED ORGANISMS
  • 4. Diatoms
  • 5. Diatoms
    • Single Celled organisms
    • Phytoplankton
      • Account for 25% of all phytoplankton on earth
  • 6. Diatoms: Structure
    • Characterized by their frustule : a two part organic box that encloses the diatom
      • Made up of two valves: one larger than the other.
    • Surface of frustule : porous, groves, spines, hooks
    • Geometric patterns
      • Looks: like glass, fragile
    • Made of silicon
  • 7. Diatoms: Structure
    • Radial symmetry : circular symmetry
    • Bilateral symmetry : parallel symmetry
  • 8. Diatoms: Reproduction
    • Fission
      • Splitting in half
    • Cell divides: each daughter cell inherits one side of the frustule (a valve )
      • Grows a new smaller valve inside frustule
    • 50% of each generation is smaller than the last
    • too small forms an auxospore: increases volume back to original size
    • In summer seasons more than 1 million diatoms can come from a single parent
  • 9. Diatomaceous Earth
    • Used to Filter
      • Beer
      • Pools
      • Champagne
    • Abrasive used in
      • Toothpaste
      • Silver polish
    • Soundproofing
    • Insulation
  • 10. Economic Value
    • diatoms’ glass like frustule does not dissolve in water
      • Settles to the bottom of the sea
      • Pressure
    • Fossil Fuels
  • 11. Can cause Health Risks
    • Diatoms Cause harmful toxic blooms
    • Some produce toxins
    • How would this be dangerous to humans?
  • 12. Diatoms: CFU
    • How do diatoms consume energy?
    • What are two economical impacts of diatoms?
    • What are two environmental impacts of diatoms?
    • How do diatoms reproduce
    • What are diatom’s characteristic structure
  • 13. Dinoflagellates
  • 14. Dinoflagellates
    • Gobular, Single celled organisms
    • Some
      • platonic
      • others are benthic
    • Some
      • symbiotic
      • others parasitic
  • 15. Dinoflagellate: Structure
    • Two groves: two flagellums
      • Horizontal: cingulum
        • Spinning flagellum
      • Vertical: suclus
        • Whipping flagellum: forward motion
  • 16. Dinoflagellates: Structure
    • Outer structure is made up of plates
    • Armored Dinos:
      • Spines, other structures
      • Help with predation, floatation
  • 17. Dinoflagellates: food/digestion
    • Many are mixotrophic
    • They have Chloroplasts:
      • Photosynthesis
    • But also absorb food
      • Osmotrophy
      • Eat other plankton: copepods, diatoms, other dinoflagellates
  • 18. Dinoflagellates: reproduction
    • Binary Fission: one division per day
    • Can depend on conditions:
      • nutrients, light, temperature
  • 19. Dinoflagellates: ecological Role
    • Red Tides
      • Release toxins
      • Digestion of toxins can cause: numbness, slurred speech, nausea, paralysis, death
      • Paralytic shellfish poisoning
  • 20. Foraminiferans
  • 21. Foraminiferans
    • Amoeboid protozoans
      • Branch like psuedopods
      • Form elaborate net like structures: Tests
        • Help catch prey
    • Most are benthic
      • Use psuedopod to crawl around
  • 22. Forams: digestion/energy
    • Consume a lot of diatoms and dinoflagellates
    • Some host green/red algae
      • Symbiotic relationship
        • Forams get nutrients
        • Coral reefs get calcium carbonate
  • 23. Forams: Structure
    • Produce Elaborate Tests
      • Multichamber
      • Grow as the foram grows
    • Geometric
      • Resembles microscopic snail shell
  • 24. Forams’ ecological role
    • Hel form beaches and sediment
      • Chalk

×