Submitted to: International Sustainable Marine Fish Culture Conference and Workshop Book of Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 9/15/2007
Publication Date: 10/15/2007
Citation: Willis, P.S., Pfeiffer, T.J. 2007. Prototype recirculating aquaculture system design for juvenile red drum production as part of the Florida Fish and Wildlife Conservation commission’s Hatchery Network Initative [abstract]. International Sustainable Marine Fish Culture Conference and Workshop Book of Abstracts. p. 26.
Technical Abstract: A prototype recirculating aquaculture system for the production of red drum (Sciaenops ocellatus) includes four 10-foot diameter by four foot height tanks for a tank volume of approximately 300 ft3 each (2200 gallons). Water flow for the system is provided for by a low head propeller pump which provides a projected tank turnover rate of less than 30 minutes. Water treatment components include a microscreen drum filter (40 microns), a 100 ft2 sump compartmentalized into five chambers. Four of the chambers are filled 70% with biomedia and serve as a long flow pathway biofilter (approximately 180 ft3 of media). Additional solids removal and biofiltration are provided by the 13 ft3 torrus biofilters attached to each tank. Water is air lifted through each torrus filter. Additional solids removal is provided by purging the tank central sump which is fitted with a center plate and standpipe with vortex breaking fins. Supplemental oxygenation is provided by two degassing towers retrofitted a vertical low-head oxygenators. Initial stocking densities for each tank will range from 1000 to 3000 twenty gram fingerlings.