Floating Upweller System (FLUPSY)
What is a FLUPSY?
A FLUPSY, or Floating Upweller System, is used to grow out shellfish in open water while protecting them from predation until they are large enough to survive being out in one of the shellfish sanctuaries. FLUPSYs provide increased water flow for the shellfish to promote accelerated growth.
How does a FLUPSY work?
As shown by the diagram, the FLUPSY motor pulls water up through the bottom of the barrels since the opposite end of the trunk line is sealed. Shellfish grow in a layer on the mesh at the bottom of the barrels. As water is pulled up through the bottom of the barrel, algae (food for the shellfish) in the water travels up through the layer of shellfish providing a continuous food supply.
What is going on under the platform?
Inside the FLUPSY platform is a central trunk line containing a motor to pull water up through 12 connected mesh bottom barrels. Shellfish grow in a layer on the mesh at the bottom of the barrels. As water is pulled up through the bottom of the barrel, algae (food for the shellfish) in the water travels up through the layer of shellfish providing a continuous food supply. Each unit needs to be inspected daily by a Volunteer Site Captain to ensure it is operational. Cleaning and maintenance occur weekly by CCE staff.
This shows what a FLUPSY unit looks like viewed from the side. The platform is supported by floats on either side. In the middle of the platform is the trunk line which contains the motor. The barrels that hold the shellfish are connected to the trunk line with additional supports.
