Conference wahoo::fishing-v2

282.0. "Tagging" by RANGER::MACINTYRE (Terminal Angler) Thu Apr 15 1993 12:54

------- Forwards removed

Date: Sat, 19 Dec 92 16:45:51 PST
From: david d `zoo' zuhn <[email protected]>

  EVERETT, WASHINGTON, U.S.A., 1992 DEC 18 (NB) -- The Washington
  State Department of Fisheries and Intermec have figured out a
  clever way to bar code fish in hatcheries so their origin can
  be traced. By identifying the fish, researchers hope to be able
  to get better information on pollution, habitat damage, and
  survival rates.

  The method doesn't involve any handling of the fish, but is
  done in the hatchery during the embryo state of Salmon. A
  calcified element in the ear of fish, called an otolith, shows
  daily growth rings. By slightly lowering and raising the
  incubation water temperature for brief periods over 14 days,
  Intermec has been able to produce in the otolith rings in an
  Interleaved 2 of 5 bar code, representing the digit "6," on two
  million salmon raised in the Cowlitz Hatchery in Washington
  state.

  The Interleaved 2 of 5 code was chosen because its more easily
  visible to the human eye.

  One digit isn't enough, however, and tests are currently being
  done with 10 different incubation environments being used to
  encode 10 different digits. Intermec says the technique could
  be refined so it could be used to uniquely identify fish from
  every hatchery, and even sub units of hatcheries.

  Intermec, a division of Litton Industrial Automation, says it
  has bar coded other animals including, bees and moths. The
  company says its business is data collection hardware,
  software, systems, services, and supplies.

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Hmmm...interesting.

I can scanning a salmon's ear and seeing the display say...



			$4.99 per pound!

    This I have to see to believe.

    A cash register isle at every pond!!!!!!!!!!!!!!!!!!
    
    It sounds interesting. Anything to help growth control is fine by me.
    Maybe it'll help em produce some bigger ones. This year I seem to be
    catching alot of skimpy rainbows. Browns too.
    Last year they were a couple inches longer and better fed. "fatter"
    At least thats been my experience this year.
    
    				Yes, there are Salmon in Cotichuate "sp"!!!!!
    
    							Scott.

    
    
      Don,
    
         NY state has been doing a tagging routine for years, what they do
    here is they take the small fish at the hatchery and inject a very tiny
    piece of metal into the nose of the fish.
      on this piece of metal is when the fish hatched, where it was raised, 
    and where the planned stocking location is, so when we come in off the 
    lake and the D.E.C. is waiting for us they ask if they can cut the nose 
    off the fish, when they take the nose it is labled with the date, time 
    location, length, weight, and where it was caught.
       After that the nose portion is taken to a lab and with special
    equipment the metal tag is retrieved and the info is recorded, this
    process is done so that they can find out how fast the fish grow, how
    far the fish travelled, age versus size, origin, and the other stuff 
    the D.E.C. is concerned about.
        I agree and support this process if it is used to better the
    fishery that we have in Lake Ontario. and from what I have seen it is
    definatly being used to try and have a steady balance of species in the 
    lake.
    
                                                   Lee
    
    
                                                           
    
    

Since I've been working barcoding projects for the past few years, looks like a
great job for me.

Work for DEC and spend the "working day" barcoding stripers and bluefish.

Gordon