Changes in the Olfactory Function of Atlantic Salmon, Salmo salar , in the Course of Smoltification
Electrophysiological responses were recorded from the surface of the rostromedial and rostrolateral regions of the right olfactory bulb of Atlantic salmon, Salmo salar, during stimulation of the olfactory epithelium with different concentrations of L-alanine and taurocholate. Fish exposed to tauroch...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Canadian Science Publishing
1992
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Online Access: | http://dx.doi.org/10.1139/f92-189 http://www.nrcresearchpress.com/doi/pdf/10.1139/f92-189 |
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crcansciencepubl:10.1139/f92-189 2023-12-17T10:27:15+01:00 Changes in the Olfactory Function of Atlantic Salmon, Salmo salar , in the Course of Smoltification Morin, Pierre-Philippe Døving, Kjell B. 1992 http://dx.doi.org/10.1139/f92-189 http://www.nrcresearchpress.com/doi/pdf/10.1139/f92-189 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 49, issue 8, page 1704-1713 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 1992 crcansciencepubl https://doi.org/10.1139/f92-189 2023-11-19T13:38:21Z Electrophysiological responses were recorded from the surface of the rostromedial and rostrolateral regions of the right olfactory bulb of Atlantic salmon, Salmo salar, during stimulation of the olfactory epithelium with different concentrations of L-alanine and taurocholate. Fish exposed to taurocholate prior to testing were compared with nonexposed fish. The results revealed significant week-to-week differences in olfactory activity in nonexposed fish, with two peaks in activity of similar magnitude. The first peak occurred at the beginning of smoltification, when olfactory sensitivity reached its maximum (low response threshold). The second peak occurred after smoltification, when sensitivity was roughly 10 times lower (higher response threshold) than during the first peak. Fish exposed to taurocholate prior to testing did not exhibit these peaks in olfactory activity. Marked changes in the spatial distribution of the electrophysiological response to L-alanine and taurocholate occurred throughout the smoltification process in nonexposed fish. The two peaks in olfactory activity that we identified coincide with two peaks in odor learning (Morin et al. 1989. Can. J. Fish. Aquat. Sci. 46: 122–130, 131–136); the first coincides with a unique capacity for odor memory and is apparently a neural manifestation of a sensitive period for olfactory imprinting in Atlantic salmon. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 49 8 1704 1713 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Morin, Pierre-Philippe Døving, Kjell B. Changes in the Olfactory Function of Atlantic Salmon, Salmo salar , in the Course of Smoltification |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Electrophysiological responses were recorded from the surface of the rostromedial and rostrolateral regions of the right olfactory bulb of Atlantic salmon, Salmo salar, during stimulation of the olfactory epithelium with different concentrations of L-alanine and taurocholate. Fish exposed to taurocholate prior to testing were compared with nonexposed fish. The results revealed significant week-to-week differences in olfactory activity in nonexposed fish, with two peaks in activity of similar magnitude. The first peak occurred at the beginning of smoltification, when olfactory sensitivity reached its maximum (low response threshold). The second peak occurred after smoltification, when sensitivity was roughly 10 times lower (higher response threshold) than during the first peak. Fish exposed to taurocholate prior to testing did not exhibit these peaks in olfactory activity. Marked changes in the spatial distribution of the electrophysiological response to L-alanine and taurocholate occurred throughout the smoltification process in nonexposed fish. The two peaks in olfactory activity that we identified coincide with two peaks in odor learning (Morin et al. 1989. Can. J. Fish. Aquat. Sci. 46: 122–130, 131–136); the first coincides with a unique capacity for odor memory and is apparently a neural manifestation of a sensitive period for olfactory imprinting in Atlantic salmon. |
format |
Article in Journal/Newspaper |
author |
Morin, Pierre-Philippe Døving, Kjell B. |
author_facet |
Morin, Pierre-Philippe Døving, Kjell B. |
author_sort |
Morin, Pierre-Philippe |
title |
Changes in the Olfactory Function of Atlantic Salmon, Salmo salar , in the Course of Smoltification |
title_short |
Changes in the Olfactory Function of Atlantic Salmon, Salmo salar , in the Course of Smoltification |
title_full |
Changes in the Olfactory Function of Atlantic Salmon, Salmo salar , in the Course of Smoltification |
title_fullStr |
Changes in the Olfactory Function of Atlantic Salmon, Salmo salar , in the Course of Smoltification |
title_full_unstemmed |
Changes in the Olfactory Function of Atlantic Salmon, Salmo salar , in the Course of Smoltification |
title_sort |
changes in the olfactory function of atlantic salmon, salmo salar , in the course of smoltification |
publisher |
Canadian Science Publishing |
publishDate |
1992 |
url |
http://dx.doi.org/10.1139/f92-189 http://www.nrcresearchpress.com/doi/pdf/10.1139/f92-189 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 49, issue 8, page 1704-1713 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f92-189 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
49 |
container_issue |
8 |
container_start_page |
1704 |
op_container_end_page |
1713 |
_version_ |
1785579047235878912 |