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Topic: Fish earbone article from Santa Cruz Sentinel 1/18/09  (Read 1590 times)

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Fuzzy Tom

  • Sea Lion
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  • Location: Ex Santa Cruz/Reno
  • Date Registered: Jul 2005
  • Posts: 1751
January 18, 2009, 06:14:31 AM
http://www.santacruzsentinel.com/localnews/ci_11483173

How they can tell the age of fish (in days?).  Key word: otolith.
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fishshim

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  • thanks for the pic PAL!
  • Mark Shimizu Design-Jewelry
  • Location: windsor
  • Date Registered: Aug 2005
  • Posts: 1426
January 18, 2009, 09:39:54 AM #1
Now you are in "InSeine" Jim's territory..... :smt002
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InSeine

  • "Whiskeys' for Drinkin', Waters' for Fightin'"
  • Salmon
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  • Location: Davis, Ca
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February 05, 2009, 08:59:11 AM #2
For baby fish there are daily rings.  We make a thin section through the earbone...using jewelers tools, and take digital pictures with a microscope.  It's delicate work, but not that difficult.  BTW, the work in this article was done at my lab at UC Davis.  www.icpms.ucdavis.edu

jim
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OG

InSeine

  • "Whiskeys' for Drinkin', Waters' for Fightin'"
  • Salmon
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  • Location: Davis, Ca
  • Date Registered: Aug 2005
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February 05, 2009, 09:00:21 AM #3
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