Seagrass Watch

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Presentation at "The River, the Bay and the Strait" public forum on 5 October, 2008 in Hervey Bay.

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  • Seagrass Watch

    1. 1. Seagrasses in the Great Sandy Strait Presented by: Gordon Cottle Great Sandy Strait Seagrass Watch & Monitoring Program
    2. 2. Great Sandy Strait Photo courtesy EPA
    3. 3. Background <ul><li>1992 cyclone </li></ul><ul><li>Severe flooding in Hervey Bay area </li></ul><ul><li>Seagrass loss of approx 1000 sq kms </li></ul><ul><li>Dugong deaths upwards of 1000 </li></ul>
    4. 4. Seagrass-Watch <ul><li>1996/7 seagrass beds not recovered – Jerry Comans </li></ul><ul><li>1998 Seagrass Watch established – community based seagrass monitoring program </li></ul><ul><li>From 2 to 20 regions </li></ul><ul><li>21 countries globally </li></ul><ul><li>Over 200 regions </li></ul>
    5. 5. GSSSW&MP <ul><li>18 Sites </li></ul><ul><li>10 Sites accessible by boat only </li></ul>
    6. 6. Seagrasses <ul><li>Unique flowering plants </li></ul><ul><li>Can live entirely submerged </li></ul><ul><li>Pollinate under water </li></ul><ul><li>15 species found in Qld </li></ul><ul><li>Absorb nutrients, stabilise sediment </li></ul><ul><li>Habitat for crustacea, fish, turtles, dugong (dugong feeding trail seen in photo) </li></ul>
    7. 7. Seagrasses in GSS <ul><li>5,554 hectares of seagrass meadows </li></ul><ul><li>Grow on intertidal sand and mud flats </li></ul><ul><li>4 species in GSS </li></ul>Pictures: www.reef.crc.org.au
    8. 8. Site Layout <ul><li>Quadrat code = site + transect + quadrat </li></ul><ul><li>Eg PN1225 = Poona site 1, transect 2, 25m quadrat </li></ul>
    9. 9. Data Sheet www.seagrasswatch..org
    10. 10. GSSSW&MP
    11. 11. GSSSW&MP
    12. 12. GSSSW&MP
    13. 13. Seagrass-Watch HQ <ul><li>Receive and analyse all data </li></ul><ul><li>Provide a site overview and report card </li></ul><ul><li>Sites given a ‘health’ rating </li></ul><ul><li>Data used for planning decisions </li></ul>
    14. 14. GSSSW&MP POONA
    15. 16. Dugong dugon

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