Mystery Spill Scence Investigators

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					Mystery Spill Crime Scene
     Investigation




  Investigators: Paff, Vincent, and Adams
Slide borrowed from Dr. Raphael Kudela
Slide borrowed from Dr. Raphael
Kudela
          Video Clip of Cleaning “Soiled” Bird
http://www.santacruzlive.com/blogs/video/2007/11/20/sentinel-video-bird-bath
   The
Situation
HAB ?
P
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S
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Slide borrowed from Dr. Raphael Kudela
     How do Scientists Use Real-time Data?


 Real-Time Data is data that is collected and
  disseminated within hours or weeks
 In this case RTD on surface currents can help
  scientists trace and predict the paths of a mystery
  spill
 CeNOOS Central & Northern California Ocean
  Observing System collects RTD on surface currents
               RTD on Surface Currents

 Scientist use High Frequency Radar to gather
 information about the direction and speed of the
 ocean’s surface currents.
    High frequency radio waves are emitted by antennae and
     travel over the ocean
    The waves scatter over the ocean and travel back to a receiving
     antennae
    The returning waves allow scientists to determine the direction
     and speed of the surface currents
For a short tutorial about HFR and other types of Ocean Observing RTD
                   go to CeNCOOS. Click on Module 1
  Tutorial written by Matt Binder, Summer Intern MBARI/Presenter
                         EARTH 2009 Workshop
Vector Activity
http://www.cencoos.org/documents/classroom/CeNCOOS_CSM2_Teach
                        er_Supplement.pdf
  “An early red tide event in September, dominated by
   Cochlodinium, did cause a major mortality event in
shellfish, but was not reported by the media. However,
 there were no toxins associated with the bloom
           that began in early November.”
              If not a toxin – then what?

 Bird Death was
 correlated with algae
 plume but if not toxic
 then what?
    Dave Jessup (CDFA)
     proposed that it was the
     foam of the spill.
            Feather and Foam Activity

 Students will test feathers in salt water and salt
  water and foam (food colored whipped egg white) to
  test whether the proteinaceous foam is to blame for
  the degradation of the waterproofing capabilities of
  the seabird’s feathers.
 Students will walk through the scientific method of
  this activity
 Activity followed by what the scientists found.
                          A simple experiment…
                                             This slide was borrowed
                                             From Dr. Raphael Kudela




S                                         Pelican feathers dipped in
                                          seawater, foam, and
                                          sediment
                                          Foam exposure coats the
                                          feathers, collapses the down
                                          and allows the water to
                                          contact the skin




Source: M. Miller, CDFG
                        Case Solved!

   that resulted from the mixing of the decaying dinoflagellates
   Proteinaceous foam compromised the water proofing
    characteristics of the seabirds’ feathers, causing their
    hypothermia.
   Foam picture taken from Dr. Raphael Kudela’s EARTH 2009
    presentation
Additional Background Material Timeline of Mystery Spill
         http://www.cencoos.org/sections/news/algal_bloom_2007.shtml
                 Possible Extensions

 Student Research on HAB
   Economic and Public Health Concerns

 Student Research on HFR
 Student Research on other Ocean Observing systems
  used in Forecasting Public concerns
                       Blooms
http://www.cencoos.org/documents/about/HABs_Factsheet.pdf

				
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