Effects of temperature, photoperiod, and season on the photobehaviour of juvenile Atlantic salmon ( Salmo salar )
The selection of illuminated or shaded areas by juvenile Atlantic salmon (Salmo salar) was examined in relation to temperature and photoperiod. Water temperature had a strong effect on the photoresponse of salmon. Salmon acclimated to 14 °C and a 16-h photophase in summer selected illuminated areas...
Published in: | Canadian Journal of Zoology |
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1990
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Online Access: | http://dx.doi.org/10.1139/z90-162 http://www.nrcresearchpress.com/doi/pdf/10.1139/z90-162 |
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crcansciencepubl:10.1139/z90-162 2024-04-07T07:51:06+00:00 Effects of temperature, photoperiod, and season on the photobehaviour of juvenile Atlantic salmon ( Salmo salar ) Rimmer, D. M. Paim, U. 1990 http://dx.doi.org/10.1139/z90-162 http://www.nrcresearchpress.com/doi/pdf/10.1139/z90-162 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 68, issue 6, page 1098-1103 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1990 crcansciencepubl https://doi.org/10.1139/z90-162 2024-03-08T00:37:47Z The selection of illuminated or shaded areas by juvenile Atlantic salmon (Salmo salar) was examined in relation to temperature and photoperiod. Water temperature had a strong effect on the photoresponse of salmon. Salmon acclimated to 14 °C and a 16-h photophase in summer selected illuminated areas when tested at their acclimation conditions, but rapidly became strongly photonegative while temperature fell to 7 °C. When tested under acclimation conditions of 7 °C and a 16-h photophase during summer, salmon selected shade, but still became distinctly photopositive as temperature increased to 14 °C. Under acclimation conditions of 14 °C and an 8-h photophase during summer, salmon selected illuminated areas, becoming photonegative as temperature fell. Thus, acclimation to photoperiod alone did not exert a clear effect on the photoresponse of summer salmon. If acclimated to 7 °C and an 8-h photophase in winter, salmon selected shade under acclimation conditions and remained photonegative also after temperature increased. Anomalously, after acclimation to 7 °C and an 8-h photophase in summer, salmon were photopositive at 7 °C, but became photonegative and selected shade upon temperature increase, indicating an endogenous seasonal difference not only in their response to thermal stimuli, but also in their susceptibility to acclimation regimes. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing Canadian Journal of Zoology 68 6 1098 1103 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Rimmer, D. M. Paim, U. Effects of temperature, photoperiod, and season on the photobehaviour of juvenile Atlantic salmon ( Salmo salar ) |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
The selection of illuminated or shaded areas by juvenile Atlantic salmon (Salmo salar) was examined in relation to temperature and photoperiod. Water temperature had a strong effect on the photoresponse of salmon. Salmon acclimated to 14 °C and a 16-h photophase in summer selected illuminated areas when tested at their acclimation conditions, but rapidly became strongly photonegative while temperature fell to 7 °C. When tested under acclimation conditions of 7 °C and a 16-h photophase during summer, salmon selected shade, but still became distinctly photopositive as temperature increased to 14 °C. Under acclimation conditions of 14 °C and an 8-h photophase during summer, salmon selected illuminated areas, becoming photonegative as temperature fell. Thus, acclimation to photoperiod alone did not exert a clear effect on the photoresponse of summer salmon. If acclimated to 7 °C and an 8-h photophase in winter, salmon selected shade under acclimation conditions and remained photonegative also after temperature increased. Anomalously, after acclimation to 7 °C and an 8-h photophase in summer, salmon were photopositive at 7 °C, but became photonegative and selected shade upon temperature increase, indicating an endogenous seasonal difference not only in their response to thermal stimuli, but also in their susceptibility to acclimation regimes. |
format |
Article in Journal/Newspaper |
author |
Rimmer, D. M. Paim, U. |
author_facet |
Rimmer, D. M. Paim, U. |
author_sort |
Rimmer, D. M. |
title |
Effects of temperature, photoperiod, and season on the photobehaviour of juvenile Atlantic salmon ( Salmo salar ) |
title_short |
Effects of temperature, photoperiod, and season on the photobehaviour of juvenile Atlantic salmon ( Salmo salar ) |
title_full |
Effects of temperature, photoperiod, and season on the photobehaviour of juvenile Atlantic salmon ( Salmo salar ) |
title_fullStr |
Effects of temperature, photoperiod, and season on the photobehaviour of juvenile Atlantic salmon ( Salmo salar ) |
title_full_unstemmed |
Effects of temperature, photoperiod, and season on the photobehaviour of juvenile Atlantic salmon ( Salmo salar ) |
title_sort |
effects of temperature, photoperiod, and season on the photobehaviour of juvenile atlantic salmon ( salmo salar ) |
publisher |
Canadian Science Publishing |
publishDate |
1990 |
url |
http://dx.doi.org/10.1139/z90-162 http://www.nrcresearchpress.com/doi/pdf/10.1139/z90-162 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Zoology volume 68, issue 6, page 1098-1103 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z90-162 |
container_title |
Canadian Journal of Zoology |
container_volume |
68 |
container_issue |
6 |
container_start_page |
1098 |
op_container_end_page |
1103 |
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1795665951608274944 |