U.S. Department of Agriculture: Agricultural Research Service, Lincoln, Nebraska
ORCID IDs
Bartholomew W. Green http://orcid.org/0000-0003-3772-9404
Document Type
Article
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