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Can reduced stocking rates and Bug Lights produce market-sized catfish from fingerlings in one growing season?

Permanent URL:
http://handle.nal.usda.gov/10113/55535
File:
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Abstract:
The purpose of this study was to determine the feasibility of growing marketable channel catfish, Ictalurus punctatus, from pond-run fingerlings (15.9 g/fish) using low stocking densities (7,413 or 14,826 fish/ha) and electrified bug lights to enhance natural forage available to fish. Even at low stocking densities, fish only averaged 0.2 kg at the end of the growing season. Because marketable sizes of fish were not reached over the growing season, stocking small fingerlings at these rates would not be practical under most commercial production scenarios. Nutritionally, captured insects from electrified bug lights were near a complete diet for catfish, but bug lights did not capture sufficient quantities of insects to affect fish production in either stocking density. Stocking small fingerlings at low stocking rates does not produce market-sized catfish during one growing season; commercially available bug lights did not provide adequate amounts of natural forage to affect production variables.
Author(s):
Charles C. Mischke , Menghe H. Li , Daniel F. Oberle
Note:
USDA Scientist Submission
Source:
Journal of applied aquaculture 2011 v.23 no.3
Language:
English
Year:
2011
Collection:
Journal Articles, USDA Authors, Peer-Reviewed
Rights:
Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.