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Homing of Morpholine-imprinted Brown Trout, Salmo Trutta

Allan T. Scholz

出版	1978
URL	http://books.google.com.hk/books?id=_u9n0QEACAAJ&hl=&source=gbs_api

註釋

Eighteen-month-old hatchery-raised brown trout were exposed to a synthetic chemical, morpholine, for 40 days and the stocked in Lake Michigan. During the spawning migration the fish homed to a simulated home stream which was scented with morpholine. Over 17% of the treated fish were recovered from the simulated home stream compared to 1% of a control group released with the treated fish. To locate the scented stream morpholine fish searched a distance of at least 13 km. Since the life cycle of migratory brown trout is similar to that of coho salmon and rainbow trout, the study was conducted to determine if the odor imprinting could be extended to brown trout.