Marine flowering plants powerpoint

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Marine flowering plants powerpoint

  1. 1. MARINE FLOWERING PLANTS
  2. 2. Angiosperms <ul><li>Flowering plants </li></ul><ul><li>Flowers for sexual reproduction </li></ul><ul><li>Produce pollen and seeds </li></ul><ul><li>Kingdom Plantae </li></ul><ul><li>Mostly on land – very few species in ocean </li></ul><ul><li>Those in the water evolved from land plants </li></ul>
  3. 3. Flowering Plants vs. Seaweeds <ul><li>Flowering plants have true roots (absorb water and nutrients), stems (hold up plants) and leaves (photosynthesis) </li></ul><ul><li>Seaweeds do not – have blade, stipe and holdfast </li></ul>
  4. 5. <ul><li>Three main groups of marine flowering plants: </li></ul><ul><li>Seagrasses </li></ul><ul><li>Mangroves </li></ul><ul><li>Marsh grasses </li></ul>
  5. 6. Seagrasses <ul><li>Not true grasses </li></ul><ul><li>Forms meadows underwater </li></ul><ul><li>(subtidal) </li></ul><ul><li>Found in shallow, calm, clear bays </li></ul>
  6. 7. Seagrasses <ul><li>About 60 species </li></ul><ul><li>Zostera marina – eelgrass - found on Long Island </li></ul>
  7. 8. Seagrasses <ul><li>Important habitat for many species </li></ul><ul><li>Many organisms live in seagrass beds </li></ul>
  8. 9. Seagrasses <ul><li>Can reproduce sexually </li></ul><ul><li>Life cycle like land flowering plants </li></ul><ul><li>Stringy pollen spread by currents </li></ul>
  9. 10. Seagrasses <ul><li>Can reproduce asexually </li></ul><ul><li>Use rhizome under sea floor </li></ul>
  10. 11. Mangroves <ul><li>Woody trees </li></ul><ul><li>Found in tropical and subtropical coastal waters </li></ul><ul><li>Intertidal – not completely submerged </li></ul>
  11. 12. Mangroves <ul><li>Often big roots sticking out of water </li></ul>
  12. 13. Mangroves <ul><li>Important habitat for many species </li></ul><ul><li>Many organisms live in mangrove stands </li></ul>
  13. 14. Mangroves <ul><li>Reproduce sexually - flowers </li></ul><ul><li>“ pencil seed” germinates which still attached to parent plant </li></ul><ul><li>If low tide – seed sticks in mud </li></ul><ul><li>If high tide – seed floats elsewhere </li></ul>
  14. 15. Salt Marsh Grasses <ul><li>Found in calm, sheltered bays along East and Gulf coasts of U.S. </li></ul><ul><li>Intertidal </li></ul>
  15. 16. Salt Marsh Grasses <ul><li>Several types of flowering </li></ul><ul><li>plants </li></ul>Spartina patens – salt marsh hay Spartina alterniflora – salt marsh cordgrass
  16. 17. Salt Marsh Grasses <ul><li>Important habitat for many species that live, feed or reproduce here </li></ul>

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