Chem. Senses 25: 533-540,
2000
© Oxford University Press 2000
Amino Acids Dissolved in Stream Water as Possible Home Stream Odorants for Masu Salmon
Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, 1 Toya Lake Station for Environmental Biology, Faculty of Fisheries, Hokkaido University, Abuta 049-5723, 2 Health Care Products Research Laboratories, Kao Corporation, Sumida 131-8501, 3 Faculty of Fisheries, Hokkaido University, Hakodate 041-0821 and 4 Graduate School of Environmental Sciences, Aomori University, Aomori 030-0943, Japan
Correspondence to be sent to: Takayuki Shoji, Graduate School of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan. e-mail: shoji{at}pharm.hokudai.ac.jp
It is well established that salmon return to their home stream by sensing the odors of the stream water. In this study we have attempted to identify the home stream odorants used by masu salmon in Lake Toya. The salmon in Lake Toya return to the home stream which flows into the lake after lake life for 2–3 years. Besides water from the home stream, waters from two other streams which flow into Lake Toya were also used in the experiments. We analyzed the compositions of amino acids, inorganic cations and bile acids in waters from the three streams. Application of mixtures of inorganic cations or bile acids, reconstituted based on the compositions of the stream waters, to the olfactory epithelium induced only very small responses. On the other hand, application of mixtures of amino acids induced large responses. The response to artificial stream water reconstituted based on the compositions of amino acids and salts closely resembles that to the corresponding stream water. Cross-adaptation experiments with three combinations of the mixtures were carried out. The response pattern for each combination closely resembled that to the corresponding combination of stream waters. Based on the results obtained, we concluded that amino acids dissolved in the home stream water are possible home stream odorants.
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  H. Kudo, M. Shinto, Y. Sakurai, and M. Kaeriyama Morphometry of Olfactory Lamellae and Olfactory Receptor Neurons During the Life History of Chum Salmon (Oncorhynchus keta) Chem Senses, September 1, 2009; 34(7): 617 - 624. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
N. Suzuki, M. Takahata, T. Shoji, and Y. Suzuki Characterization of Electro-olfactogram Oscillations and Their Computational Reconstruction Chem Senses, June 1, 2004; 29(5): 411 - 424. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Sato and N. Suzuki Whole-cell Response Characteristics of Ciliated and Microvillous Olfactory Receptor Neurons to Amino Acids, Pheromone Candidates and Urine in Rainbow Trout Chem Senses, November 1, 2001; 26(9): 1145 - 1156. [Abstract] [Full Text] [PDF]
|
|