The Effects of Environmental Stressors (Heat & Progressive Hypoxia) on the Development of Juvenile Atlantic Salmon (Salmo Salar)
Juvenile Atlantic salmon (Salmo salar) in Tasmanian aquaculture facilities routinely experience large variations in holding temperatures, indoor tanks are held at 16oC while the fish in outdoor holding pools can be exposed to summer temperatures of up to 24oC. During periods of anthropogenic disturb...
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ftgriffithuniv:oai:research-repository.griffith.edu.au:10072/368182 2023-05-15T15:29:29+02:00 The Effects of Environmental Stressors (Heat & Progressive Hypoxia) on the Development of Juvenile Atlantic Salmon (Salmo Salar) Smith, Graham Anthony Gillian Renshaw 2017 application/pdf http://hdl.handle.net/10072/368182 English eng Griffith University Atlantic salmon Tasmanian aquaculture Atlantic salmon growth development Environmental conditions Griffith thesis 2017 ftgriffithuniv 2018-07-30T11:02:48Z Juvenile Atlantic salmon (Salmo salar) in Tasmanian aquaculture facilities routinely experience large variations in holding temperatures, indoor tanks are held at 16oC while the fish in outdoor holding pools can be exposed to summer temperatures of up to 24oC. During periods of anthropogenic disturbance, fish activity increases and with it their oxygen consumption, which rapidly drives the dissolved oxygen level in their holding tanks down to approach hypoxic conditions. It was hypothesised that exposure to heat and/or hypoxia during parr development would impair successful smoltification in response to their transfer to seawater The research in this thesis was conducted to (i) establish whether the metabolic characteristics of the geographically and genetically isolated Atlantic salmon population in Tasmania had different physiological and biochemical responses to elevated temperature from those recorded for populations in the Northern Hemisphere; and (ii) whether early exposure to heat and/or hypoxia resulted in failed smolts, after seawater transfer. Initially, a series of experiments were undertaken to examine the effect of environmental stress, on metabolic characteristics, condition factor and coping style of these fish, in response to a) elevated temperatures, b) progressive hypoxia and c) periods of confinement prior to respirometry. Subsequently, the effect of elevated rearing temperature on parr readiness to smolt was examined. Thesis (PhD Doctorate) Doctor of Philosophy (PhD) School of Allied Health Griffith Health Full Text Other/Unknown Material Atlantic salmon Salmo salar Griffith University: Griffith Research Online Griffith ENVELOPE(-155.500,-155.500,-85.883,-85.883) |
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Griffith University: Griffith Research Online |
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ftgriffithuniv |
language |
English |
topic |
Atlantic salmon Tasmanian aquaculture Atlantic salmon growth development Environmental conditions |
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Atlantic salmon Tasmanian aquaculture Atlantic salmon growth development Environmental conditions Smith, Graham Anthony The Effects of Environmental Stressors (Heat & Progressive Hypoxia) on the Development of Juvenile Atlantic Salmon (Salmo Salar) |
topic_facet |
Atlantic salmon Tasmanian aquaculture Atlantic salmon growth development Environmental conditions |
description |
Juvenile Atlantic salmon (Salmo salar) in Tasmanian aquaculture facilities routinely experience large variations in holding temperatures, indoor tanks are held at 16oC while the fish in outdoor holding pools can be exposed to summer temperatures of up to 24oC. During periods of anthropogenic disturbance, fish activity increases and with it their oxygen consumption, which rapidly drives the dissolved oxygen level in their holding tanks down to approach hypoxic conditions. It was hypothesised that exposure to heat and/or hypoxia during parr development would impair successful smoltification in response to their transfer to seawater The research in this thesis was conducted to (i) establish whether the metabolic characteristics of the geographically and genetically isolated Atlantic salmon population in Tasmania had different physiological and biochemical responses to elevated temperature from those recorded for populations in the Northern Hemisphere; and (ii) whether early exposure to heat and/or hypoxia resulted in failed smolts, after seawater transfer. Initially, a series of experiments were undertaken to examine the effect of environmental stress, on metabolic characteristics, condition factor and coping style of these fish, in response to a) elevated temperatures, b) progressive hypoxia and c) periods of confinement prior to respirometry. Subsequently, the effect of elevated rearing temperature on parr readiness to smolt was examined. Thesis (PhD Doctorate) Doctor of Philosophy (PhD) School of Allied Health Griffith Health Full Text |
author2 |
Gillian Renshaw |
format |
Other/Unknown Material |
author |
Smith, Graham Anthony |
author_facet |
Smith, Graham Anthony |
author_sort |
Smith, Graham Anthony |
title |
The Effects of Environmental Stressors (Heat & Progressive Hypoxia) on the Development of Juvenile Atlantic Salmon (Salmo Salar) |
title_short |
The Effects of Environmental Stressors (Heat & Progressive Hypoxia) on the Development of Juvenile Atlantic Salmon (Salmo Salar) |
title_full |
The Effects of Environmental Stressors (Heat & Progressive Hypoxia) on the Development of Juvenile Atlantic Salmon (Salmo Salar) |
title_fullStr |
The Effects of Environmental Stressors (Heat & Progressive Hypoxia) on the Development of Juvenile Atlantic Salmon (Salmo Salar) |
title_full_unstemmed |
The Effects of Environmental Stressors (Heat & Progressive Hypoxia) on the Development of Juvenile Atlantic Salmon (Salmo Salar) |
title_sort |
effects of environmental stressors (heat & progressive hypoxia) on the development of juvenile atlantic salmon (salmo salar) |
publisher |
Griffith University |
publishDate |
2017 |
url |
http://hdl.handle.net/10072/368182 |
long_lat |
ENVELOPE(-155.500,-155.500,-85.883,-85.883) |
geographic |
Griffith |
geographic_facet |
Griffith |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
_version_ |
1766359897683787776 |