Biological Sciences, School of
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Document Type
Article
Date of this Version
12-1967
Abstract
Two pairs of black bullheads, Ictalurus melas (Rafinesque), were observed spawning out of season in two 90-gal laboratory aquaria after the females had received injections of finely ground acetone-dried carp pituitaries. These fish had been collected in August 1966 and were maintained in the laboratory through the winter in a 75-gal aquarium at an approximate room temperature of 20°–25° C.
Comments
Published in Copeia 1967, no. 4, December 8, pp. 852-853.