RE: [GSAS-Member] Safe in Tank Acrylic Sandpaper

["Hess, Clay A" <clay.a.hess@boeing.com>]

I believe sturgeon routinely can make it to the old category provided
they are not caught and eaten first.

-----Original Message-----
From: haika@drizzle.com [mailto:haika@drizzle.com] 
Sent: Wednesday, April 06, 2005 9:34 AM
To: Greater Seattle Aquarium Society member chat
Cc: gsas-member@thekrib.com
Subject: Re: [GSAS-Member] Safe in Tank Acrylic Sandpaper


> Are there any old fish in the wild?)

If an age of 100+ can be defined as 'old'...yes, we encounter them on a
routine basis. Of course, I'm talking about fish in a marine ecosystem
rather than freshwater. Dover sole, sablefish (black cod), and several
rockfish (Sebastes) spp routinely exceed 60 years of age. Our lab has
validated these age estimates with radiometric analysis. Just last week
I looked at an otolith preparation from a rougheye rockfish that we
estimated was 100+ years old (I got 101, another age reader got 104). We
are preparing a thin-section of this otolith just to cross-check our
estimate.

Betty Goetz

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