A 1998 survey of the oyster(Crassostrea virginica) population on an
exploited reef in Mobile Bay, Alabama, USA reported the following size distribution:

10.1 - 25.4 mm  70.4/sq-m
25.5 - 50.8 mm  56.6/sq-m
50.9 - 76.2 mm  18.3/sq-m
76.3 - 101.6mm  5.7/sq-m
>101.6          0.6/sq/m

Mean height was 32.8 mm and the range was 10.1 - 128.2 mm

Harvestable size is = to or greater than 76.2 mm

On Wed, 11 Jul 2001,
Gomelyuk, Victor wrote:

> Dear Colleagues,
>
> I wonder if someone can help me with a population size-structure of any
> species of oyster Saccostrea or Crassostrea genera? I am interested in data
> of ratio between number of young  (< 20-25 mm) and adult (>30 mm) oysters in
> "healthy" population. How they size-frequency histograms look like?
>
> Regards,
>
> Dr Victor E. Gomelyuk
> Marine Scientist
> Cobourg Marine Park
> PO Box 496 PALMERSTON NT 0831 AUSTRALIA
> phone 61 (08) 8979 0244
> FAX 61 (08) 8979 0246
>
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Richard (Rick) Wallace
Director and Sea Grant Extension Program Leader
AU Marine Extension and Research Center
4170 Commanders Dr.
Mobile, AL 36615
Ph: 334 438 5690
FAX:334 438 5670

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