Humid Tropics: Part 2

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Author:
dante01
ID:
217214
Filename:
Humid Tropics: Part 2
Updated:
2013-05-02 06:42:30
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Midterm
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study
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  1. What is Coral?
    marine colonial polyp characterized by a calcareous skeleton
  2. Highest species richness of coral reefs
    Indo Pacific - 500 species of coral
  3. Highest endemism in coral reefs
    hawaii
  4. Zooxanthellae and symbiotic relationship with coral
    • -yellow and brown algae
    • -has a symbiotic relationship with coral.
    • 1. Coral Polyp
    • -Provide Nitrogen and Carbon Dioxide
    • -protection
    • 2. Zooxanthellae
    • -provides oxygen
    • -nutrients
  5. Phylum Cnidaria
    • -Jellyfish, sea anemone, corals
    • -stinging cells called nematocysts
    • -radially symmetric
  6. Difference between Hard and soft corals
    • 1.Hard corals
    • -6 tentacles
    • -out at night
    • 2. Soft corals
    • -8 tentacles
    • -out during day
    • -like fans
  7. ID: Acropora
    • -deer thorns
  8. ID: Fungia
    • -mushrooms
  9. ID: Platygyra
    • -Brain coral
  10. ID: Favia
    • -circular polyps
  11. ID: Turbinaria
    • -turban like
  12. ID: Millepora
    • -fire/ yellow coral
  13. ID: Subergorgia
    • -fan like
  14. Coral importance
    • -buffers to land
    • -food and subsistence,
    • -Tourism
  15. What proportion of coral has been destroyed and degraded?
    • -1/10 destroyed
    • -1/3 degraded.
    • -¾ degraded in 50 years
  16. What is the aesthetic value of coral?
    $375 billion annually
  17. Three things that are damaging coral
    • 1. Coral bleaching due to temperature increases
    • 2. man-made causes from forestry,
    • 3. dynamite and cyanide fishing
  18. Flora
    • -75% biomass plants,
    • -single cell plant
    • -brown algae, green algae, coralline, halimeda, penicullus
  19. Algae
    primitive plants with no true leaves, stems, or roots.
  20. Brown Algae
    • -kelp
    • -sargassum
  21. Green Algae
    • -contributes calcium carbonate
    • 1. halimedal
    • - most of what makes white sand    
    • 2. udotea
    • - indicator of pollution, signifies polluted
  22. ID: Halimeda
    • -green algae
  23. What are seagrasses?
    Land plants that have recolonized in the ocean.
  24. ID: Seagrasses
  25. Why are seagrasses important?
    • 1. Stabilizing the sea bottom
    • 2.Providing food and habitat for other marine organisms
    • 3. Maintaining water quality
    • 4. Supporting local economies

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