Mangroves

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A mangrove presentation used for overseas students and local communities on the importance of mangroves

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Mangroves

  1. 1. Mangroves
  2. 2. World Distribution
  3. 3. Mangroves <ul><li>Found along coastal areas, especially in estuaries. </li></ul><ul><li>Grow well in areas with salt and fresh water mix </li></ul><ul><li>Different species of mangroves use different areas of the tidal zone. </li></ul>
  4. 4. Mangrove Importance <ul><li>Areas have murky muddy water that create habitats for juvenile fish, sharks and crustaceans </li></ul><ul><li>Root systems anchor the soil and prevent erosion in coastal zones </li></ul><ul><li>Act as wave breakers, protecting coasts and communities from climatic change </li></ul><ul><li>Create breeding and feeding grounds for many marine animals. </li></ul>
  5. 5. Cultural Importance <ul><li>Mangrove areas provide food and shelter for communities. Crustaceans and fish species are caught using traps and nets </li></ul><ul><li>Tree parts have traditional uses such as </li></ul><ul><li>Fence building </li></ul><ul><li>Makes dye for tapa cloths </li></ul><ul><li>Fish traps </li></ul><ul><li>Other fishing practices </li></ul>
  6. 6. Areas of Issue <ul><li>Pigs free to wander and feed from estuary areas. Pigs increase levels of nitrates and bacteria in the area as well as digging up new mangrove shoots. </li></ul><ul><li>Deforestation and soil erosion </li></ul>
  7. 7. Mangrove Species in Vava’u <ul><li>Red Mangrove (Rhizopora sp.) </li></ul><ul><li>Prop Roots </li></ul><ul><li>Small Leaves </li></ul><ul><li>Whitish Yellow Flower </li></ul><ul><li>Long pod seed </li></ul><ul><li>Water/Sea </li></ul>
  8. 8. <ul><li>Prop Roots </li></ul><ul><li>Sprout from very high up in the tree </li></ul><ul><li>The older the tree the higher the roots are located </li></ul><ul><li>Roots are very important and have many functions </li></ul><ul><li>Anchor the plant </li></ul><ul><li>Absorb minerals </li></ul><ul><li>Gas exchange O2 and CO2 </li></ul><ul><li>Absorb water from surrounding ecosystem and excludes the salt </li></ul>
  9. 9. <ul><li>Leaves are thick and waxy preventing excessive water loss </li></ul><ul><li>Use photosynthesis to create food </li></ul><ul><li>Dead leaves fall into water and decay providing nutrients for ecosystem </li></ul>
  10. 10. <ul><li>Seed Pod drops when ready </li></ul><ul><li>Carried by tides and currents </li></ul><ul><li>Root end bulbous and heavy planting into tidal soil zones </li></ul>
  11. 11. Conservation and Sustainability <ul><li>Community ran projects for planting mangroves </li></ul><ul><li>Creating sustainable use programs </li></ul><ul><li>Education in schools and community meetings </li></ul>

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