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HARMFUL ALGAL BLOOMS (HAB S )

HARMFUL ALGAL BLOOMS (HAB S ). What are Harmful Algal Blooms (HABs)?.

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HARMFUL ALGAL BLOOMS (HAB S )

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  1. HARMFUL ALGAL BLOOMS (HABS)

  2. What are Harmful Algal Blooms (HABs)? • Harmful algal blooms or HABs are algal blooms composed of phytoplankton known to naturally produce biotoxins, they can occur when certain types of microscopic algae grow quickly in water, forming visible patches that may harm the health of the environment, plants, or animals. • HABs can deplete the oxygen and block the sunlight that other organisms need to live, and some HAB-causing algae release toxins that are dangerous to animals and humans. • HAB can occur in marine, estuarine, and fresh waters. www.marbef.org/wiki/harmful_algal_bloom

  3. What causes HABs? • Eutrophication • Warm temperatures • Lots of sunlight • Runoff • Farming • Human sewage • Pesticides

  4. http://www.miseagrant.umich.edu/files/2012/05/Harmful-Algal-Bloom-illustration-1000w.jpghttp://www.miseagrant.umich.edu/files/2012/05/Harmful-Algal-Bloom-illustration-1000w.jpg

  5. Nitrogen Cycle http://www.physicalgeography.net/fundamentals/images/nitrogencycle.jpg

  6. Phosphorous Cycle http://media1.shmoop.com/images/biology/biobook_eco_13.png

  7. http://products.coastalscience.noaa.gov/pmn/_images/habdiagramlg.gifhttp://products.coastalscience.noaa.gov/pmn/_images/habdiagramlg.gif

  8. HABs in the United States http://www.whoi.edu/redtide/regions/us-distribution

  9. http://www.whoi.edu/redtide/page.do?pid=18116&tid=542&cid=55970&ct=61&article=33066http://www.whoi.edu/redtide/page.do?pid=18116&tid=542&cid=55970&ct=61&article=33066

  10. http://www.whoi.edu/redtide/page.do?pid=18116&tid=542&cid=55970&ct=61&article=33066http://www.whoi.edu/redtide/page.do?pid=18116&tid=542&cid=55970&ct=61&article=33066

  11. Toxic Diatom and Dinoflagellate HABs • Diatoms • ASP: Amnesic Shellfish Poisoning • Dinoflagellate • PSP: Paralytic Shellfish Poisoning • NSP: Neurotoxic Shellfish Poisoning • CFP: Ciguatera Fish Poisoning • DSP: Diarrhetic Shellfish Poisoning www.whoi.edu/science/B/redtide/illness/illness.html http://www.whoi.edu/redtide/photos

  12. PSP: Paralytic Shellfish Poisoning

  13. CFP: Ciguatera Fish Poisoning

  14. DSP: Diarrhetic Shellfish Poisoning

  15. Impact of HABs on us! • Food poisoning • Inner ear infections • No swimming at beaches/lakes/rivers • Economic impacts • Fisheries • Tourism • Others?

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