The effect of light intensity on the nightly movements of juvenile Atlantic salmon alevins away from the redd
Atlantic salmon ( Salmo salar ) alevins move away from the redd predominantly at night time, suggesting that light level is the controlling factor releasing activity. However, the exact relationship between Light level and alevin activity is unknown, so a series of artificial redds was used to monit...
Published in: | Journal of Fish Biology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
1994
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/j.1095-8649.1994.tb01089.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1994.tb01089.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1994.tb01089.x |
id |
crwiley:10.1111/j.1095-8649.1994.tb01089.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/j.1095-8649.1994.tb01089.x 2024-06-02T08:03:32+00:00 The effect of light intensity on the nightly movements of juvenile Atlantic salmon alevins away from the redd Fraser, Neil H. C. Auntingford, Felicity Thorpe, John E. 1994 http://dx.doi.org/10.1111/j.1095-8649.1994.tb01089.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1994.tb01089.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1994.tb01089.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 45, issue sA, page 143-150 ISSN 0022-1112 1095-8649 journal-article 1994 crwiley https://doi.org/10.1111/j.1095-8649.1994.tb01089.x 2024-05-03T10:36:53Z Atlantic salmon ( Salmo salar ) alevins move away from the redd predominantly at night time, suggesting that light level is the controlling factor releasing activity. However, the exact relationship between Light level and alevin activity is unknown, so a series of artificial redds was used to monitor alevin movements under various night time incident light levels. Five experimental redds and two controls were run over a period of 3 years. Combining the results gave a significant negative correlation between the numbers of salmon alevins moving away from redds on light nights and light level. This behaviour was interpreted as a negative photoresponse since the frequency of alevin movement away from the redd was dependent on the light intensity. Two possible explanations as to why alevins may react in this way to light level were considered. Firstly, the behaviour could have evolved to ensure that alevins only move away from the redd when they are least likely to be caught by a predator or secondly, retinal developmental differences between alevins could have led to the observed behaviour. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Journal of Fish Biology 45 sa 143 150 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Atlantic salmon ( Salmo salar ) alevins move away from the redd predominantly at night time, suggesting that light level is the controlling factor releasing activity. However, the exact relationship between Light level and alevin activity is unknown, so a series of artificial redds was used to monitor alevin movements under various night time incident light levels. Five experimental redds and two controls were run over a period of 3 years. Combining the results gave a significant negative correlation between the numbers of salmon alevins moving away from redds on light nights and light level. This behaviour was interpreted as a negative photoresponse since the frequency of alevin movement away from the redd was dependent on the light intensity. Two possible explanations as to why alevins may react in this way to light level were considered. Firstly, the behaviour could have evolved to ensure that alevins only move away from the redd when they are least likely to be caught by a predator or secondly, retinal developmental differences between alevins could have led to the observed behaviour. |
format |
Article in Journal/Newspaper |
author |
Fraser, Neil H. C. Auntingford, Felicity Thorpe, John E. |
spellingShingle |
Fraser, Neil H. C. Auntingford, Felicity Thorpe, John E. The effect of light intensity on the nightly movements of juvenile Atlantic salmon alevins away from the redd |
author_facet |
Fraser, Neil H. C. Auntingford, Felicity Thorpe, John E. |
author_sort |
Fraser, Neil H. C. |
title |
The effect of light intensity on the nightly movements of juvenile Atlantic salmon alevins away from the redd |
title_short |
The effect of light intensity on the nightly movements of juvenile Atlantic salmon alevins away from the redd |
title_full |
The effect of light intensity on the nightly movements of juvenile Atlantic salmon alevins away from the redd |
title_fullStr |
The effect of light intensity on the nightly movements of juvenile Atlantic salmon alevins away from the redd |
title_full_unstemmed |
The effect of light intensity on the nightly movements of juvenile Atlantic salmon alevins away from the redd |
title_sort |
effect of light intensity on the nightly movements of juvenile atlantic salmon alevins away from the redd |
publisher |
Wiley |
publishDate |
1994 |
url |
http://dx.doi.org/10.1111/j.1095-8649.1994.tb01089.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1994.tb01089.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1994.tb01089.x |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology volume 45, issue sA, page 143-150 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.1994.tb01089.x |
container_title |
Journal of Fish Biology |
container_volume |
45 |
container_issue |
sa |
container_start_page |
143 |
op_container_end_page |
150 |
_version_ |
1800748083525451776 |