SALTONSTALL KENNEDY GRANT PROGRAM
Improving the Economic Efficiency of....
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GRANT NUMBER:  NA66FD0059           NMFS NUMBER:  95-WO-005

REPORT TITLE:  Improving the Economic Efficiency of Recirculating Aquacultural Systems by Improving Water Quality and Reducing System Costs

AUTHOR: Michael B. Timmons, PhD

PUBLISH DATE:  August 31, 1997

AVAILABLE FROM:  National Marine Fisheries Service, Office of Sustainable Fisheries, Seafood Inspection Division, 3209 Frederic Street-PO Drawer 1207, Pascagoula, Mississippi 39568.  TELEPHONE:  (601) 762-7402

ABSTRACT

The overall objective was to improve the economic efficiency of water recirculating systems used for the production of food fish. Specific tasks of the project developed and evaluated an alternative low-cost nitrification filter, evaluated the use of ozone with foam fractionators, determined the effects of tank geometry and flow extraction rates on settleable solids removal, evaluated the effect of stocking density on growth rate and feed conversion efficiency with tilapia, performed an economic analysis by comparing conventional pond rearing as used with catfish to indoor tilapia farming using water reuse technology, and an international short course was held that focused on the principles of water reuse technology.

 
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