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A Device to Continuously Monitor Dissolved Oxygen and Temperature at User‐Selected Depths and Locations in Culture Ponds
Author(s) -
Pearson Philip R.,
Green Bartholomew W.
Publication year - 2006
Publication title -
north american journal of aquaculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.432
H-Index - 41
eISSN - 1548-8454
pISSN - 1522-2055
DOI - 10.1577/a05-085.1
Subject(s) - ictalurus , catfish , channel (broadcasting) , hydrology (agriculture) , data collection , fishery , data logger , environmental science , grading (engineering) , biology , ecology , engineering , computer science , fish <actinopterygii> , mathematics , telecommunications , statistics , geotechnical engineering , operating system
Abstract Continuous measurement of dissolved oxygen concentration and temperature at two depths in the water column were needed for a 2004 field study conducted during actual harvests of channel catfish Ictalurus punctatus and for a small‐scale research study conducted in 2005. In the on‐farm field study, we collected data in grading nets loaded with high densities of channel catfish. The small‐scale study was conducted in 0.1‐acre channel catfish research ponds. Commercially available dissolved oxygen and temperature monitoring units did not meet study requirements, so we developed a free‐floating data collection unit composed of state‐of‐the‐art sensors, a data logger, and readily available materials. The data collection units proved to be durable under conditions existing in both loaded grading nets and in small research ponds.