Seasonal Effects of Suspended Sediment on the Behavior of Juvenile Atlantic Salmon
Abstract Short‐term increases in suspended sediment levels significantly influenced the behavior of juvenile Atlantic salmon in both fall and winter trials. The initial introduction of sediment (20 mg/L, or ≈15 nephelometric turbidity units [NTU]) increased foraging activity, which subsequently decl...
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Online Access: | http://dx.doi.org/10.1577/t06-164.1 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1577/T06-164.1 |
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crwiley:10.1577/t06-164.1 2024-06-23T07:51:12+00:00 Seasonal Effects of Suspended Sediment on the Behavior of Juvenile Atlantic Salmon Robertson, Martha J. Scruton, David A. Clarke, Keith D. 2007 http://dx.doi.org/10.1577/t06-164.1 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1577/T06-164.1 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Transactions of the American Fisheries Society volume 136, issue 3, page 822-828 ISSN 0002-8487 1548-8659 journal-article 2007 crwiley https://doi.org/10.1577/t06-164.1 2024-06-11T04:45:46Z Abstract Short‐term increases in suspended sediment levels significantly influenced the behavior of juvenile Atlantic salmon in both fall and winter trials. The initial introduction of sediment (20 mg/L, or ≈15 nephelometric turbidity units [NTU]) increased foraging activity, which subsequently declined at sediment levels greater than 180 mg/L (≈35 NTU). Cover use also declined as fish emerged to forage. No fish returned to cover at sediment levels greater than 60 mg/L (≈22 NTU) in the fall trials, whereas some fish in the winter trials never emerged from cover. A rapid decline in territorial behavior and an avoidance response (i.e., alarm reaction) at sediment levels ranging from 60 to 180 mg/L (≈22‐42 NTU) were also noted in fall trials but not winter trials. Seasonal differences in the response of juvenile Atlantic salmon to suspended sediments may be explained by temperature‐related changes in diel activity patterns. Article in Journal/Newspaper Atlantic salmon Wiley Online Library Transactions of the American Fisheries Society 136 3 822 828 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Short‐term increases in suspended sediment levels significantly influenced the behavior of juvenile Atlantic salmon in both fall and winter trials. The initial introduction of sediment (20 mg/L, or ≈15 nephelometric turbidity units [NTU]) increased foraging activity, which subsequently declined at sediment levels greater than 180 mg/L (≈35 NTU). Cover use also declined as fish emerged to forage. No fish returned to cover at sediment levels greater than 60 mg/L (≈22 NTU) in the fall trials, whereas some fish in the winter trials never emerged from cover. A rapid decline in territorial behavior and an avoidance response (i.e., alarm reaction) at sediment levels ranging from 60 to 180 mg/L (≈22‐42 NTU) were also noted in fall trials but not winter trials. Seasonal differences in the response of juvenile Atlantic salmon to suspended sediments may be explained by temperature‐related changes in diel activity patterns. |
format |
Article in Journal/Newspaper |
author |
Robertson, Martha J. Scruton, David A. Clarke, Keith D. |
spellingShingle |
Robertson, Martha J. Scruton, David A. Clarke, Keith D. Seasonal Effects of Suspended Sediment on the Behavior of Juvenile Atlantic Salmon |
author_facet |
Robertson, Martha J. Scruton, David A. Clarke, Keith D. |
author_sort |
Robertson, Martha J. |
title |
Seasonal Effects of Suspended Sediment on the Behavior of Juvenile Atlantic Salmon |
title_short |
Seasonal Effects of Suspended Sediment on the Behavior of Juvenile Atlantic Salmon |
title_full |
Seasonal Effects of Suspended Sediment on the Behavior of Juvenile Atlantic Salmon |
title_fullStr |
Seasonal Effects of Suspended Sediment on the Behavior of Juvenile Atlantic Salmon |
title_full_unstemmed |
Seasonal Effects of Suspended Sediment on the Behavior of Juvenile Atlantic Salmon |
title_sort |
seasonal effects of suspended sediment on the behavior of juvenile atlantic salmon |
publisher |
Wiley |
publishDate |
2007 |
url |
http://dx.doi.org/10.1577/t06-164.1 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1577/T06-164.1 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
Transactions of the American Fisheries Society volume 136, issue 3, page 822-828 ISSN 0002-8487 1548-8659 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1577/t06-164.1 |
container_title |
Transactions of the American Fisheries Society |
container_volume |
136 |
container_issue |
3 |
container_start_page |
822 |
op_container_end_page |
828 |
_version_ |
1802642217580363776 |