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Seawater survival and osmoregulation...

Hauta, Christopher Carl.

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Seawater survival and osmoregulation of Atlantic salmon ( Salmo salar) parr-smolts exposed to four different pesticides.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Seawater survival and osmoregulation of Atlantic salmon ( Salmo salar) parr-smolts exposed to four different pesticides./
Author:	Hauta, Christopher Carl.
Description:	73 p.
Notes:	Source: Masters Abstracts International, Volume: 52-05.
Contained By:	Masters Abstracts International52-05(E).
Subject:	Aquatic sciences. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MS25002
ISBN:	9780499250025

Seawater survival and osmoregulation of Atlantic salmon ( Salmo salar) parr-smolts exposed to four different pesticides.
Hauta, Christopher Carl.

Seawater survival and osmoregulation of Atlantic salmon ( Salmo salar) parr-smolts exposed to four different pesticides. - 73 p.

Source: Masters Abstracts International, Volume: 52-05.

Thesis (M.S.)--Royal Roads University (Canada), 2014.

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 microg/L groups. For quintozene, decreases in LSI was seen at each concentration, and decreases in Na+K+-ATPase activity was seen at 0.55 microg/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 microg/L groups, and plasma cortisol concentrations at100 microg/L. Overall, the pesticides examined had minimal effects on fish osmoregulation and stress at the concentrations tested.

ISBN: 9780499250025Subjects--Topical Terms:

3174300
Aquatic sciences.

Seawater survival and osmoregulation of Atlantic salmon ( Salmo salar) parr-smolts exposed to four different pesticides.
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100 1 $a Hauta, Christopher Carl. $3 3277054
245 1 0 $a Seawater survival and osmoregulation of Atlantic salmon ( Salmo salar) parr-smolts exposed to four different pesticides.
300 $a 73 p.
500 $a Source: Masters Abstracts International, Volume: 52-05.
500 $a Advisers: Lenore Newman; Christopher J. Kennedy.
502 $a Thesis (M.S.)--Royal Roads University (Canada), 2014.
520 $a 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 microg/L groups. For quintozene, decreases in LSI was seen at each concentration, and decreases in Na+K+-ATPase activity was seen at 0.55 microg/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 microg/L groups, and plasma cortisol concentrations at100 microg/L. Overall, the pesticides examined had minimal effects on fish osmoregulation and stress at the concentrations tested.
590 $a School code: 1313.
650 4 $a Aquatic sciences. $3 3174300
650 4 $a Environmental science. $3 677245
650 4 $a Toxicology. $3 556884
690 $a 0792
690 $a 0768
690 $a 0383
710 2 $a Royal Roads University (Canada). $b Environment and Sustainability. $3 2122740
773 0 $t Masters Abstracts International $g 52-05(E).
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791 $a M.S.
792 $a 2014
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=MS25002