Channel catfish were held in 18-cubic-foot pens from June 1 to Sept. 9 at stocking rates of 2, 4, 8, 12, 18, and 24 fish per pen. Mean weight per fish on Sept. 9 showed an inverse relationship with population density. Condition factors increased in all pens throughout the study. Fish in pens with 2, 4, and 8 fish were in better condition than those in more crowded pens after July 15. Growth of fish in the pen with 2 fish was similar to that in the open pond. Growth of channel catfish was greater in 2 ft. of water than at 4 and 6 ft. Low dissolved oxygen at 6 ft. caused the death of channel catfish by July 1.
Proceedings of the Iowa Academy of Science
© Copyright 1970 by the Iowa Academy of Science, Inc.
Walker, Robert D. and Carlander, K. D.
"Effects of Population Density upon Channel Catfish in Enclosures,"
Proceedings of the Iowa Academy of Science, 77(1), 97-103.
Available at: https://scholarworks.uni.edu/pias/vol77/iss1/15