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.
