Author
Brown, Travis | |
MISCHKE, CHARLES - Mississippi State University | |
ROY, LUKE - University Of Arkansas At Pine Bluff | |
LI, MENGHE - Mississippi State University |
Submitted to: Journal of the World Aquaculture Society
Publication Type: Peer Reviewed Journal Publication Acceptance Date: 5/22/2015 Publication Date: 1/28/2016 Citation: Brown, T.W., Mischke, C.C., Roy, L.A., Li, M.H. 2016. A length-weight relationship for pond-raised hybrid catfish fingerlings. Journal of the World Aquaculture Society. 47:93-96. Interpretive Summary: The goal of this project was to develop a length-weight relationship for pond-raised hybrid catfish fingerlings. A total of 4,663 individual length and weight measurements were made on hybrid catfish fingerlings from 2008 to 2013. A model was developed to predict weight in grams from total length in mm. The predicted values were analogous to standard values developed for Channel Catfish two decades ago. However, slight deviations in measurement error and/or using an incorrect length-weight table for hybrid catfish fingerlings can reduce accuracy. The model that we developed can be used for as a starting point for length-weight tables for hybrid catfish culturists. Technical Abstract: A length-weight relationship was developed for pond-raised hybrid catfish fingerlings, Ictalurus punctatus x I. furcatus. A total of 4663 fish were sampled ranging from 20-240 mm total length. Predicted weight (g) from length (mm) is based on the equation: Y = 0.000017311X2.868474309 (r2 = 0.996) where Y is the estimated individual fish weight and X is measured total length. The predicted values generated by this model differ from, but follow the same general trends seen with channel catfish, I. punctatus, fingerlings, and can be used as a baseline for the development of a length-weight table for hybrid catfish fingerling production. |