U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska
ORCID IDs
Bartholomew W. Green http://orcid.org/0000-0003-3772-9404
Date of this Version
2019
Citation
Green, B. W., K. K. Schrader, and M. E. McEntire. 2019. Effects of solids removal on water quality and channel catfish production in a biofloc technology production system. Journal of Applied Aquaculture, 31: 1-16.
doi:10.1080/10454438.2018.1536010
Abstract
Total suspended solids control was evaluated in a channel catfish (Ictalurus punctatus) biofloc technology production system. Settling chamber flow rates were 0.9 (LO) or 2.9 (HI) L/min to reduce total suspended solids to 300 mg/L; solids were not removed from control tanks. Channel catfish yields (7.6–8.7 kg/m3) were not affected significantly, but control fish were skewed toward smaller size classes. Control treatment channel catfish tolerated 1,410 mg/L total suspended solids without adverse effects. LO- and HI-treatment fillet geosmin concentrations were high enough to be designated as off-flavor. Water quality results suggested that nitrification was affected by solids removal.
Comments
US gov't work