Homing of Artificially Imprinted Steelhead (Rainbow) Trout, Salmo gairdneri

1 April 1976

journal article
research article
Published by Canadian Science Publishing in Journal of the Fisheries Research Board of Canada

Vol. 33 (4) , 826-829
https://doi.org/10.1139/f76-101

Abstract

Greater numbers of rainbow trout (S. gairdneri) exposed to morpholine as fingerlings as compared to trout left unexposed to morpholine as fingerlings homed to a stream scented with this odor (174 vs. 16). In order to locate this stream, the imprinted fish are able to search a distance of at least 13 km. These data support the olfactory hypothesis of homing.