Marine flowering plants

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Marine flowering plants

  1. 1. Marine Flowering Plants Kingdom Plantae
  2. 2. Angiosperms • • • • • • • Autotrophs Have flowers used for sexual reproduction Have pollen Have seeds Multicellular eukaryotes Mostly on land-very few in the ocean Evolved from land plants
  3. 3. Seaweeds (algae) vs. Flowering Plants Photosynthesis Structure/Support Anchor vs. Water/Nutrient Absorption
  4. 4. Three Groups • Seagrasses • Mangroves • Marsh grasses • VERY IMPORTANT habitat for young marine organisms – they all act like nursery grounds for countless species!
  5. 5. Seagrasses • Not true grasses • Found in temperate & tropical coastal bays & estuaries • Subtidal = must stay underwater • Prefer shallow, calm, clear waters • Many species • Zostera (eelgrass) is our type on Long Island More about seagrasses: http:// www.flseagrass.org/ecology.php
  6. 6. Pictures of seagrass meadows
  7. 7. Seagrass Reproduction • Sexually – stringy pollen carried away by currents • Life cycle like land flowering plants • Asexually – using rhizomes under the sediment
  8. 8. Mangroves • • • • Woody trees Tropical & Subtropical Intertidal=Not fully submerged Often roots sticking out of the water • Several species – obviously, none on Long Island
  9. 9. Picture of a Mangrove Forest
  10. 10. Mangrove Reproduction • Reproduce sexually – with flowers • “Pencil seed” germinates while still attached to parent – If it’s low tide: seed sticks in the mud – If it’s high tide: seed is carried away by current
  11. 11. Salt marshes • Found in calm, sheltered bays on East and Gulf Coasts of the US • Intertidal • Several species - our common ones are: – Spartina alterniflora – salt marsh cordgrass – Spartina patens – salt marsh hay Virtual field trip through a salt marsh: http://zottoli.wordpress.com/saltmarshes/spartina-alterniflora /
  12. 12. Pictures of Salt Marshes
  13. 13. Marsh Grass Reproduction • Sexually – flowers like flowering land plants • Asexually - rhizomes
  14. 14. To Learn More… • http://www.sglearnonline.com/seaweed-and-marineplants.html • https://www.oceanclassrooms.com/ms101_u9_c1_sa_1 • Watch this: http://www.oceanclassrooms.com/resources/storyline/uni t9/MS101_U9_C1_SA_1/story.html

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