Olfactory Discriminating Ability of Lacustrine Sockeye and Masu Salmon in Various Freshwaters
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概要
- 論文の詳細を見る
In order to study the olfactory discriminating ability of lacustrine sockeye salmon (Oncorhynchus nerka) and masu salmon (O. masou), the integrated olfactory nerve response to various freshwaters was recorded by electrophysiological techniques. In both species independent of sex and gonadal maturity, each freshwater caused a different olfactory response. Source and effluent waters of the culture pond at Toya Lake Station (the source and culture pond waters) evoked the minimum and maximum response magnitude, respectively. In cross-adaptation experiments, the culture pond water abolished all secondary responses to other freshwaters, and no freshwater abolished the secondary response to the culture pond water. The concentration response study revealed that the minimum concentration (threshold) to induce response to the culture pond water after adaptation to Lake Toya water was between 0.1 and 1.0%. The present study indicates that the olfactory organ of lacustrine salmonids may discriminate different intensities of various freshwater odors.
- 社団法人日本動物学会の論文
- 2000-04-10
著者
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UEDA Hiroshi
Toya Lake Station for Environmental Biology, Faculty of Fisheries, Hokkaido University
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Shoji Takayuki
Graduate School Of Pharmaceutical Sciences Hokkaido University
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Sato Koji
Toya Lake Station for Environmental Biology, Faculty of Fisheries, Hokkaido University
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Sato Koji
Toya Lake Station For Environmental Biology Faculty Of Fisheries Hokkaido University:(present Addres
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Ueda Hiroshi
Toya Lake Station For Environmental Biology Faculty Of Fisheries Hokkaido University
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