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NURSERY

 Clam farmers use wellers and raceways to provide protection and food for small clam seed until it is ready to be placed on the lease for growout.   The equipment is usually built on land and you will see them all over Cedar Key.

            Wellers are open ended cylinders suspended in seawater.  The water is circulated through the seed resting on screen at the bottom of the cylinder.  The device is described as either an UP weller or a DOWN weller depending on the direction of the water flow.

    

Clam seed in weller basket Baskets of clam seed in weller
SEED IN BOTTOM OF WELLER BASKET
WELLER WITH BASKETS OF SEED IN PLACE
Weller filter Weller drain
Weller filter
Weller drain

  Raceways are shallow tanks or trays with saltwater pumped from a nearby source. 
The horizontal water flow provides foods and oxygen.               

Stacked raceways Raceway plumbing
STACED RACEWAYS
RACEWAY PLUMBING
Raceway Tray Raceway Drain
RACEWAY TRAY
RACEWAY PLUMBING