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Science 20 August 1965:
Vol. 149. no. 3686, pp. 884 - 885
DOI: 10.1126/science.149.3686.884
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Articles

Electroencephalographic Studies of Homing Salmon

Toshiaki J. Hara 1, Kazuo Ueda 1, and Aubrey Gorbman 1

1 Department of Zoology, University of Washington, Seattle 98105

When adult spawning salmon (Oncorhynchus tshawytscha, 0. kisutch) arrive at the "home" pond, most regions of the brain are electrically inactive, but the olfactory bulbs and posterior cerebellum are relatively highly active. Infusion of various natural waters from nearby sources other than the home pond into the olfactory sac produces little or no change in spontaneous electroencephalographic patterns recorded from the olfactory bulbs. Water from the home pond, however, produces a vigorous response of high amplitude. These findings suggest that olfaction is an important factor in guidance during the final phases of homeward migration of salmon, and that olfactory discrimination occurs at the level of either the olfactory bulbs or the olfactory epithelium.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Amino Acids Dissolved in Stream Water as Possible Home Stream Odorants for Masu Salmon.
T. Shoji, H. Ueda, T. Ohgami, T. Sakamoto, Y. Katsuragi, K. Yamauchi, and K. Kurihara (2000)
Chem Senses 25, 533-540
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Electroencephalographic Evidence for Retention of Olfactory Cues in Homing Coho Salmon.
J. C. Cooper and A. D. Hasler (1974)
Science 183, 336-338
   Abstract »    PDF »
Memory-Blocking Agents: Effects on Olfactory Discrimination in Homing Salmon.
K. Oshima, A. Gorbman, and H. Shimada (1969)
Science 165, 86-88
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Science. ISSN 0036-8075 (print), 1095-9203 (online)