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Ice age fish in a warming world: The...

Kelly, Nick Ian.

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Ice age fish in a warming world: Thermal acclimation capacity of lake trout (Salvelinus namaycush) populations.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Ice age fish in a warming world: Thermal acclimation capacity of lake trout (Salvelinus namaycush) populations./
Author:	Kelly, Nick Ian.
Description:	53 p.
Notes:	Source: Masters Abstracts International, Volume: 53-02.
Contained By:	Masters Abstracts International53-02(E).
Subject:	Physiology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1558906
ISBN:	9781303993558

Ice age fish in a warming world: Thermal acclimation capacity of lake trout (Salvelinus namaycush) populations.
Kelly, Nick Ian.

Ice age fish in a warming world: Thermal acclimation capacity of lake trout (Salvelinus namaycush) populations. - 53 p.

Source: Masters Abstracts International, Volume: 53-02.

Thesis (M.S.)--Trent University (Canada), 2014.

This item must not be sold to any third party vendors.

In the face of climate change, the persistence of cold-adapted species and populations will depend on their capacity for evolutionary adaptation of physiological traits. As a cold-adapted Ice Age relict species, lake trout (Salvelinus namaycush) are ideal for studying potential effects of climate change on coldwater fishes. I studied the thermal acclimation capacity and aerobic metabolism of age 2+ lake trout from four populations across four acclimation temperatures (8ºC, 11ºC, 15ºC, and 19ºC). One population had marginally significant higher active metabolic rate (AMR) and metabolic scope across all temperatures. There was no interpopulation variation for critical thermal maximum (CTM), standard metabolic rate (SMR), or thermal acclimation capacity. Acclimation resulted in a 3ºC increase in thermal tolerance and 3-fold increase in SMR for all populations. At 19ºC, SMR increased and AMR declined, resulting in sharply reduced metabolic scope for all populations. The limited intraspecific variation in thermal physiology suggests that climate change may threaten lake trout at the species rather than population level.

ISBN: 9781303993558Subjects--Topical Terms:

518431
Physiology.

Ice age fish in a warming world: Thermal acclimation capacity of lake trout (Salvelinus namaycush) populations.
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020 $a 9781303993558
035 $a (MiAaPQ)AAI1558906
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040 $a MiAaPQ $c MiAaPQ
100 1 $a Kelly, Nick Ian. $3 3175734
245 1 0 $a Ice age fish in a warming world: Thermal acclimation capacity of lake trout (Salvelinus namaycush) populations.
300 $a 53 p.
500 $a Source: Masters Abstracts International, Volume: 53-02.
500 $a Advisers: Gary Burness; Chris C. Wilson.
502 $a Thesis (M.S.)--Trent University (Canada), 2014.
506 $a This item must not be sold to any third party vendors.
506 $a This item must not be added to any third party search indexes.
520 $a In the face of climate change, the persistence of cold-adapted species and populations will depend on their capacity for evolutionary adaptation of physiological traits. As a cold-adapted Ice Age relict species, lake trout (Salvelinus namaycush) are ideal for studying potential effects of climate change on coldwater fishes. I studied the thermal acclimation capacity and aerobic metabolism of age 2+ lake trout from four populations across four acclimation temperatures (8ºC, 11ºC, 15ºC, and 19ºC). One population had marginally significant higher active metabolic rate (AMR) and metabolic scope across all temperatures. There was no interpopulation variation for critical thermal maximum (CTM), standard metabolic rate (SMR), or thermal acclimation capacity. Acclimation resulted in a 3ºC increase in thermal tolerance and 3-fold increase in SMR for all populations. At 19ºC, SMR increased and AMR declined, resulting in sharply reduced metabolic scope for all populations. The limited intraspecific variation in thermal physiology suggests that climate change may threaten lake trout at the species rather than population level.
590 $a School code: 0513.
650 4 $a Physiology. $3 518431
650 4 $a Animal sciences. $3 3174829
650 4 $a Biology. $3 522710
690 $a 0719
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690 $a 0306
710 2 $a Trent University (Canada). $b Environmental and Life Sciences. $3 2049953
773 0 $t Masters Abstracts International $g 53-02(E).
790 $a 0513
791 $a M.S.
792 $a 2014
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1558906