Transactions of the American Fisheries Society 128:289–301, 1999 � Copyright by the American Fisheries Society 1999 Migration Timing of Atlantic Salmon Smolts Relative to Environmental and Physiological Factors
Abstract.—We determined the migration timing of fry-stocked smolts of Atlantic salmon Salmo salar, relative to environmental and physiological factors, by using net weirs and counting fences in three tributaries of the West River, Vermont. Smolt migration began in late April and early May when water...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.418.9526 2023-05-15T15:31:42+02:00 Transactions of the American Fisheries Society 128:289–301, 1999 � Copyright by the American Fisheries Society 1999 Migration Timing of Atlantic Salmon Smolts Relative to Environmental and Physiological Factors Kevin G. Whalen Donna L. Parrish Stephen D. Mccormick The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.418.9526 http://www.bio.umass.edu/biology/mccormick/pdf/TAFS 1999 Whalen.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.418.9526 http://www.bio.umass.edu/biology/mccormick/pdf/TAFS 1999 Whalen.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.bio.umass.edu/biology/mccormick/pdf/TAFS 1999 Whalen.pdf text ftciteseerx 2016-01-08T03:51:03Z Abstract.—We determined the migration timing of fry-stocked smolts of Atlantic salmon Salmo salar, relative to environmental and physiological factors, by using net weirs and counting fences in three tributaries of the West River, Vermont. Smolt migration began in late April and early May when water temperature was 5�C, peak movements occurred in early and mid-May at temperatures exceeding 8�C, and migration was complete by early June. Within this seasonal window, significant differences in migration timing and gill Na �,K �-ATPase activity occurred among tributaries. In both years of the study, smolts tended to migrate earlier and exhibit greater gill Na �,K �-ATPase activity in the warmest tributary than in the coolest tributary. Smolt migration timing differed most among tributaries in mid-May when (1) water temperatures were more than 8�C, (2) smolts peaked in gill Na �,K �-ATPase activity, and (3) discharge peaked, stimulating smolt migration. Smolts captured after the migratory period had lower gill Na �,K �-ATPase activity than migrating smolts. Relating smolt physiology to migration was crucial for explaining complex interactions among water temperature, discharge, and smolt behavior during both the onset and cessation of migratory activity. Because the period between onset of migration and loss of smolt physiological characteristics may be brief, delays in downstream passage that may occur at dams must be Text Atlantic salmon Salmo salar Unknown |
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Abstract.—We determined the migration timing of fry-stocked smolts of Atlantic salmon Salmo salar, relative to environmental and physiological factors, by using net weirs and counting fences in three tributaries of the West River, Vermont. Smolt migration began in late April and early May when water temperature was 5�C, peak movements occurred in early and mid-May at temperatures exceeding 8�C, and migration was complete by early June. Within this seasonal window, significant differences in migration timing and gill Na �,K �-ATPase activity occurred among tributaries. In both years of the study, smolts tended to migrate earlier and exhibit greater gill Na �,K �-ATPase activity in the warmest tributary than in the coolest tributary. Smolt migration timing differed most among tributaries in mid-May when (1) water temperatures were more than 8�C, (2) smolts peaked in gill Na �,K �-ATPase activity, and (3) discharge peaked, stimulating smolt migration. Smolts captured after the migratory period had lower gill Na �,K �-ATPase activity than migrating smolts. Relating smolt physiology to migration was crucial for explaining complex interactions among water temperature, discharge, and smolt behavior during both the onset and cessation of migratory activity. Because the period between onset of migration and loss of smolt physiological characteristics may be brief, delays in downstream passage that may occur at dams must be |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Kevin G. Whalen Donna L. Parrish Stephen D. Mccormick |
spellingShingle |
Kevin G. Whalen Donna L. Parrish Stephen D. Mccormick Transactions of the American Fisheries Society 128:289–301, 1999 � Copyright by the American Fisheries Society 1999 Migration Timing of Atlantic Salmon Smolts Relative to Environmental and Physiological Factors |
author_facet |
Kevin G. Whalen Donna L. Parrish Stephen D. Mccormick |
author_sort |
Kevin G. Whalen |
title |
Transactions of the American Fisheries Society 128:289–301, 1999 � Copyright by the American Fisheries Society 1999 Migration Timing of Atlantic Salmon Smolts Relative to Environmental and Physiological Factors |
title_short |
Transactions of the American Fisheries Society 128:289–301, 1999 � Copyright by the American Fisheries Society 1999 Migration Timing of Atlantic Salmon Smolts Relative to Environmental and Physiological Factors |
title_full |
Transactions of the American Fisheries Society 128:289–301, 1999 � Copyright by the American Fisheries Society 1999 Migration Timing of Atlantic Salmon Smolts Relative to Environmental and Physiological Factors |
title_fullStr |
Transactions of the American Fisheries Society 128:289–301, 1999 � Copyright by the American Fisheries Society 1999 Migration Timing of Atlantic Salmon Smolts Relative to Environmental and Physiological Factors |
title_full_unstemmed |
Transactions of the American Fisheries Society 128:289–301, 1999 � Copyright by the American Fisheries Society 1999 Migration Timing of Atlantic Salmon Smolts Relative to Environmental and Physiological Factors |
title_sort |
transactions of the american fisheries society 128:289–301, 1999 � copyright by the american fisheries society 1999 migration timing of atlantic salmon smolts relative to environmental and physiological factors |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.418.9526 http://www.bio.umass.edu/biology/mccormick/pdf/TAFS 1999 Whalen.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
http://www.bio.umass.edu/biology/mccormick/pdf/TAFS 1999 Whalen.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.418.9526 http://www.bio.umass.edu/biology/mccormick/pdf/TAFS 1999 Whalen.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766362217896214528 |