A unit for collection of dissolved oxygen and water column temperature at multiple depths

Authors: Green, Bartholomew - Bart; Pearson, Philip

Submitted to: Book of Abstracts Aquaculture America
Publication Type: Abstract Only
Publication Acceptance Date: 12/13/2006
Publication Date: 2/26/2007
Citation: Green, B.W., Pearson, P.R. 2007. A unit for collection of dissolved oxygen and water column temperature at multiple depths [abstract]. Book of Abstracts Aquaculture America. p. 362.

Interpretive Summary: Not required

Technical Abstract: A 2004 field study conducted during actual channel catfish Ictalurus punctatus harvests, and a small-scale research study conducted in 2005, required continuous collection of dissolved oxygen concentration and temperature at two depths in the water column. The on-farm study required data collection in grading nets loaded with high densities of channel catfish, whereas the small-scale study was conducted in one-tenth-acre channel catfish research ponds. Commercially available monitoring units did not meet study requirements, so a free-floating data collection unit comprised of a combination of state-of-the-art sensor and datalogger technology and readily available materials was developed. The data collection units proved durable under conditions existing in both loaded grading nets and in small research ponds.