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Subject: Crustacean ageing
From: Dave Secor <[log in to unmask]>
Reply-To:Scientific forum on fish and fisheries <[log in to unmask]>
Date:Wed, 19 Apr 2000 13:23:55 -0400

TEXT/PLAIN (26 lines)

Recent discussion that lipofuscin based ageing of crustaceans is
burdensome may not be correct entirely.  Marine chemist R. Harvey and his
student have developed a procedure for measuring extracted lipofuscin in
blue crabs using a rapid spectrophotometric assay.  We've calibrated
standardized-lipofuscin measures through the first 2 years of life.  The
technique is rapid and relatively inexpensive; we've been able to take
measures for moderately large sample sizes (n>500).


Ju, S-J, D.H. Secor, and H.R. Harvey. 1999.  Use of extractable
lipofuscin for age determination of blue crab Callinectes sapidus.  Mar.
Ecol. Progr. Ser. 185: 171-179.


David H. Secor, Ph.D.

Chesapeake Biological Laboratory, PO Box 38, Solomons, MD 20688

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