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Ankle bracelets for fish knowing who is coming IOOS

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Ankle bracelets for fish knowing who is coming IOOS Powered By Docstoc
					 Ankle bracelets for fish.. knowing
    who is coming and going…
Developing an acoustic fish “gate” for
         the Chester River.
            Hassan Moustahfid, PhD.
                  U.S. IOOS
          The BEST of the Chester Apr. 17-19, 2012
                      Outline
• Early Tagging Studies in Chester River
• Present studies DNR- Perch etc. Spawning and
  Nursery grounds.
• What new in Fish Tagging/Telemetry (Electronic
  Tags, Acoustic and Satellite etc.)
• Chester river
• What? potential fish to tag
• Where? Potential Acoustic Telemetry Array
  placement
• Why? Example of questions to answer
• Couple optimal design for different needs
        Early Fish Tagging Work

              Conventional Tagging

Mansueti, 1960 in Chesapeake Science Vol. 1
Comparison of the Movements of Stocked and
Resident Yellow Perch, Perca flavescens, in
Tributaries of Chesapeake Bay, Maryland

Mark –recapture technique
Few returned fish
                      Fish Tagging Work
Fisherman interest in the spawning run of yellow perch in Maryland’s upper
Chesapeake waters, Maryland DNR implemented a pilot study in spring 2008.
The objective: investigate movements of yellow perch during the spawning period.
Technique used Mark-Recapture- Fish were tagged with t-bar anchor tags.
Fishermen where rewarded if they get back the tags.




A total of 1495 yellow perch were tagged and released
             DNR Fisheries Service 2008 Yellow Perch
                Tagging (mark-recapture) study,




RESULTS: Of the 1495 fish tagged, 27 tag returned.
Conclusion: The success of conventional tagging study is very closely related to fishermen
cooperation,
           Electronic Tagging
      Acoustic Telemetry Technology

What’s available?
– VEMCO, LOTEK, HTI, etc.
– Passive arrays, manual equipment,
  combinations
Even Clupeid species such as Herring, Shad can be tagged
                   with acoustic tags.




                                         B. Meloy
OTN
                         10
Source Tag A Giant Program
Fabrizio et al. 2005. NOAA tech memo,

                         11
POST array




             Courtesy Dr.John Payne (POST)
   Chester River Acoustic Array Design
                  Ideas
The waters of the Chester are spawning and
nursery areas for many fish species:

Alewife, shad, blueback, perch, Blue Crab.

Striped bass=Rockfish is the most prized
anadromous (freshwater spawning) fish found in
the Chester.
Perfect place to establish an acoustic array,
Depth Max: 50-60 m
Mouth Love point and Eastern Neck: ~2 miles
Bathymetry of the lower Chester River. Note that the mouth of
the Chester River is shallower than the vicinity of fixed
monitoring station ET4.2. Source: EPA Chesapeake Bay Program. 2010.
                      Why do we tag fish?
• Help fisheries managers understand more about the fish species and their
  populations.
• Identification of sensitive “hot spot” areas, high value
• Ecosystems and ecosystem benefits created by Marine Protected Areas
  (MPAs).
• Monitor and mitigate the impacts of management strategies including
  protected areas and fisheries regulations.
• Define essential fish habitat (EFH)
• Establish baseline habitat usage studies on potential sites of future
  anthropogenic disturbance (e.g aquaculture sites)
• Improve stock assessments: provide spatial and temporal refinement of
  natural
 mortality , harvest susceptibility and survival rates
• Animal Telemetry can reveal how environmental factors drives animal
   distributions in nutrient enriched estuaries and coastal areas, to better
understand the impact of the large low-oxygen zones
• Provide the scientific basis for ecosystem-based management (EBM).
• Recreational Fisherman interest in the spawning run
       Education and outreach:


• From recreational fishers to
  conservationists animals offer a unique
  opportunity to catch the attention of the
  public and educate them about the value
  and importance of ocean observation.
• Popular and useful educational products
  have been created for grades K-12 with
  telemetry and tracking data.
                                         Or
                                         Bay




Example of a Typical Receiver Layout
for a River Migration Study
                                   Source Vemco
        Chester River Acoustic Telemetry Array
Candidate species
Perch
Striped Bass= Rockfish
Alewife
Shad
Blueback
Blue Crab

Again the design will depend on
the Research Priorities
    Thank You


Hassan.moustahfid@noaa.gov




   (http://ioos.gov/)

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