Seawater survival and osmoregulation of Atlantic salmon (Salmo salar) parr-smolts exposed to four different pesticides
Atlantic salmon (Salmo salar) parr-smolts were exposed to sublethal concentrations of cypermethrin, chlorothalonil, quintozene or atrazine to determine if they affected osmoregulation. After 96 h of exposure to a pesticide, Na+K+-ATPase, hematocrit, liver somatic index (LSI), plasma sodium, chloride...
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ftcanadathes:oai:collectionscanada.gc.ca:BRC.10170/676 2023-05-15T15:30:22+02:00 Seawater survival and osmoregulation of Atlantic salmon (Salmo salar) parr-smolts exposed to four different pesticides Hauta, Christopher Carl Newman, Lenore Kennedy, Christopher Dodd, Matt 2014-02-24T21:55:37Z http://hdl.handle.net/10170/676 unknown http://hdl.handle.net/10170/676 Atlantic salmon ATPase current use pesticides osmoregulation seawater challenge smolt 2014 ftcanadathes 2014-03-09T00:46:21Z Atlantic salmon (Salmo salar) parr-smolts were exposed to sublethal concentrations of cypermethrin, chlorothalonil, quintozene or atrazine to determine if they affected osmoregulation. After 96 h of exposure to a pesticide, Na+K+-ATPase, hematocrit, liver somatic index (LSI), plasma sodium, chloride, and cortisol concentrations were determined. There were no mortalities observed following a 24-h seawater challenge. No effects were seen with cypermethrin exposure. Chlorothalonil exposure resulted in increases in plasma Na+ concentrations following the seawater challenge in the 0.18 and 3.6 μg/L groups. For quintozene, decreases in LSI was seen at each concentration, and decreases in Na+K+-ATPase activity was seen at 0.55 μg/L as well as a decrease in Na+ concentrations at the highest exposure concentration. Atrazine exposure increased Na+K+-ATPase activity in the 1 and 100 μg/L groups, and plasma cortisol concentrations at100 μg/L. Overall, the pesticides examined had minimal effects on fish osmoregulation and stress at the concentrations tested. Other/Unknown Material Atlantic salmon Salmo salar Theses Canada/Thèses Canada (Library and Archives Canada) |
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Open Polar |
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Theses Canada/Thèses Canada (Library and Archives Canada) |
op_collection_id |
ftcanadathes |
language |
unknown |
topic |
Atlantic salmon ATPase current use pesticides osmoregulation seawater challenge smolt |
spellingShingle |
Atlantic salmon ATPase current use pesticides osmoregulation seawater challenge smolt Hauta, Christopher Carl Seawater survival and osmoregulation of Atlantic salmon (Salmo salar) parr-smolts exposed to four different pesticides |
topic_facet |
Atlantic salmon ATPase current use pesticides osmoregulation seawater challenge smolt |
description |
Atlantic salmon (Salmo salar) parr-smolts were exposed to sublethal concentrations of cypermethrin, chlorothalonil, quintozene or atrazine to determine if they affected osmoregulation. After 96 h of exposure to a pesticide, Na+K+-ATPase, hematocrit, liver somatic index (LSI), plasma sodium, chloride, and cortisol concentrations were determined. There were no mortalities observed following a 24-h seawater challenge. No effects were seen with cypermethrin exposure. Chlorothalonil exposure resulted in increases in plasma Na+ concentrations following the seawater challenge in the 0.18 and 3.6 μg/L groups. For quintozene, decreases in LSI was seen at each concentration, and decreases in Na+K+-ATPase activity was seen at 0.55 μg/L as well as a decrease in Na+ concentrations at the highest exposure concentration. Atrazine exposure increased Na+K+-ATPase activity in the 1 and 100 μg/L groups, and plasma cortisol concentrations at100 μg/L. Overall, the pesticides examined had minimal effects on fish osmoregulation and stress at the concentrations tested. |
author2 |
Newman, Lenore Kennedy, Christopher Dodd, Matt |
author |
Hauta, Christopher Carl |
author_facet |
Hauta, Christopher Carl |
author_sort |
Hauta, Christopher Carl |
title |
Seawater survival and osmoregulation of Atlantic salmon (Salmo salar) parr-smolts exposed to four different pesticides |
title_short |
Seawater survival and osmoregulation of Atlantic salmon (Salmo salar) parr-smolts exposed to four different pesticides |
title_full |
Seawater survival and osmoregulation of Atlantic salmon (Salmo salar) parr-smolts exposed to four different pesticides |
title_fullStr |
Seawater survival and osmoregulation of Atlantic salmon (Salmo salar) parr-smolts exposed to four different pesticides |
title_full_unstemmed |
Seawater survival and osmoregulation of Atlantic salmon (Salmo salar) parr-smolts exposed to four different pesticides |
title_sort |
seawater survival and osmoregulation of atlantic salmon (salmo salar) parr-smolts exposed to four different pesticides |
publishDate |
2014 |
url |
http://hdl.handle.net/10170/676 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
http://hdl.handle.net/10170/676 |
_version_ |
1766360805340610560 |