Developmental hypoxia has negligible effects on long-term hypoxia tolerance and aerobic metabolism of Atlantic salmon (Salmo salar)
Exposure to developmental hypoxia can have long-term impacts on the physiological performance of fish because of irreversible plasticity. Wild and captive-reared Atlantic salmon (Salmo salar) can be exposed to hypoxic conditions during development and continue to experience fluctuating oxygen levels...
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ftdeakinunifig:oai:figshare.com:article/20824009 2024-06-23T07:51:19+00:00 Developmental hypoxia has negligible effects on long-term hypoxia tolerance and aerobic metabolism of Atlantic salmon (Salmo salar) AT Wood Timothy Clark SJ Andrewartha NG Elliott PB Frappell 2017-07-01T00:00:00Z http://hdl.handle.net/10536/DRO/DU:30104973 https://figshare.com/articles/journal_contribution/Developmental_hypoxia_has_negligible_effects_on_long-term_hypoxia_tolerance_and_aerobic_metabolism_of_Atlantic_Salmon_Salmo_salar_/20824009 unknown http://hdl.handle.net/10536/DRO/DU:30104973 https://figshare.com/articles/journal_contribution/Developmental_hypoxia_has_negligible_effects_on_long-term_hypoxia_tolerance_and_aerobic_metabolism_of_Atlantic_Salmon_Salmo_salar_/20824009 All Rights Reserved Animal physiology - biophysics Animal physiology - cell Animal physiology - systems Zoology not elsewhere classified Medical physiology not elsewhere classified Science & Technology Life Sciences & Biomedicine Physiology Zoology hypoxia aerobic metabolism hypoxia tolerance developmental trajectory ONCORHYNCHUS-MYKISS EMBRYOS ZEBRAFISH DANIO-RERIO RAINBOW-TROUT DISSOLVED-OXYGEN SWIMMING PERFORMANCE BOUNDARY-LAYER CLIMATE-CHANGE DEAD ZONES TEMPERATURE FISHES Acclimatization Aerobiosis Animals Body Weight Energy Metabolism Oxygen Oxygen Consumption Salmo salar Water School of Life and Environmental Sciences 3109 Zoology 3103 Ecology Text Journal contribution 2017 ftdeakinunifig 2024-06-06T01:30:02Z Exposure to developmental hypoxia can have long-term impacts on the physiological performance of fish because of irreversible plasticity. Wild and captive-reared Atlantic salmon (Salmo salar) can be exposed to hypoxic conditions during development and continue to experience fluctuating oxygen levels as juveniles and adults. Here, we examine whether developmental hypoxia impacts subsequent hypoxia tolerance and aerobic performance of Atlantic salmon. Individuals at 8°C were exposed to 50% (hypoxia) or 100% (normoxia) dissolved oxygen (DO) saturation (as percent of air saturation) from fertilization for ∼100 d (800 degree days) and then raised in normoxic conditions for a further 15 mo. At 18 mo after fertilization, aerobic scope was calculated in normoxia (100% DO) and acute (18 h) hypoxia (50% DO) from the difference between the minimum and maximum oxygen consumption rates ([Formula: see text] and [Formula: see text], respectively) at 10°C. Hypoxia tolerance was determined as the DO at which loss of equilibrium (LOE) occurred in a constantly decreasing DO environment. There was no difference in [Formula: see text], [Formula: see text], or aerobic scope between fish raised in hypoxia or normoxia. There was some evidence that hypoxia tolerance was lower (higher DO at LOE) in hypoxia-raised fish compared with those raised in normoxia, but the magnitude of the effect was small (12.52% DO vs. 11.73% DO at LOE). Acute hypoxia significantly reduced aerobic scope by reducing [Formula: see text], while [Formula: see text] remained unchanged. Interestingly, acute hypoxia uncovered individual-level relationships between DO at LOE and [Formula: see text], [Formula: see text], and aerobic scope. We discuss our findings in the context of developmental trajectories and the role of aerobic performance in hypoxia tolerance. Article in Journal/Newspaper Atlantic salmon Salmo salar DRO - Deakin Research Online |
institution |
Open Polar |
collection |
DRO - Deakin Research Online |
op_collection_id |
ftdeakinunifig |
language |
unknown |
topic |
Animal physiology - biophysics Animal physiology - cell Animal physiology - systems Zoology not elsewhere classified Medical physiology not elsewhere classified Science & Technology Life Sciences & Biomedicine Physiology Zoology hypoxia aerobic metabolism hypoxia tolerance developmental trajectory ONCORHYNCHUS-MYKISS EMBRYOS ZEBRAFISH DANIO-RERIO RAINBOW-TROUT DISSOLVED-OXYGEN SWIMMING PERFORMANCE BOUNDARY-LAYER CLIMATE-CHANGE DEAD ZONES TEMPERATURE FISHES Acclimatization Aerobiosis Animals Body Weight Energy Metabolism Oxygen Oxygen Consumption Salmo salar Water School of Life and Environmental Sciences 3109 Zoology 3103 Ecology |
spellingShingle |
Animal physiology - biophysics Animal physiology - cell Animal physiology - systems Zoology not elsewhere classified Medical physiology not elsewhere classified Science & Technology Life Sciences & Biomedicine Physiology Zoology hypoxia aerobic metabolism hypoxia tolerance developmental trajectory ONCORHYNCHUS-MYKISS EMBRYOS ZEBRAFISH DANIO-RERIO RAINBOW-TROUT DISSOLVED-OXYGEN SWIMMING PERFORMANCE BOUNDARY-LAYER CLIMATE-CHANGE DEAD ZONES TEMPERATURE FISHES Acclimatization Aerobiosis Animals Body Weight Energy Metabolism Oxygen Oxygen Consumption Salmo salar Water School of Life and Environmental Sciences 3109 Zoology 3103 Ecology AT Wood Timothy Clark SJ Andrewartha NG Elliott PB Frappell Developmental hypoxia has negligible effects on long-term hypoxia tolerance and aerobic metabolism of Atlantic salmon (Salmo salar) |
topic_facet |
Animal physiology - biophysics Animal physiology - cell Animal physiology - systems Zoology not elsewhere classified Medical physiology not elsewhere classified Science & Technology Life Sciences & Biomedicine Physiology Zoology hypoxia aerobic metabolism hypoxia tolerance developmental trajectory ONCORHYNCHUS-MYKISS EMBRYOS ZEBRAFISH DANIO-RERIO RAINBOW-TROUT DISSOLVED-OXYGEN SWIMMING PERFORMANCE BOUNDARY-LAYER CLIMATE-CHANGE DEAD ZONES TEMPERATURE FISHES Acclimatization Aerobiosis Animals Body Weight Energy Metabolism Oxygen Oxygen Consumption Salmo salar Water School of Life and Environmental Sciences 3109 Zoology 3103 Ecology |
description |
Exposure to developmental hypoxia can have long-term impacts on the physiological performance of fish because of irreversible plasticity. Wild and captive-reared Atlantic salmon (Salmo salar) can be exposed to hypoxic conditions during development and continue to experience fluctuating oxygen levels as juveniles and adults. Here, we examine whether developmental hypoxia impacts subsequent hypoxia tolerance and aerobic performance of Atlantic salmon. Individuals at 8°C were exposed to 50% (hypoxia) or 100% (normoxia) dissolved oxygen (DO) saturation (as percent of air saturation) from fertilization for ∼100 d (800 degree days) and then raised in normoxic conditions for a further 15 mo. At 18 mo after fertilization, aerobic scope was calculated in normoxia (100% DO) and acute (18 h) hypoxia (50% DO) from the difference between the minimum and maximum oxygen consumption rates ([Formula: see text] and [Formula: see text], respectively) at 10°C. Hypoxia tolerance was determined as the DO at which loss of equilibrium (LOE) occurred in a constantly decreasing DO environment. There was no difference in [Formula: see text], [Formula: see text], or aerobic scope between fish raised in hypoxia or normoxia. There was some evidence that hypoxia tolerance was lower (higher DO at LOE) in hypoxia-raised fish compared with those raised in normoxia, but the magnitude of the effect was small (12.52% DO vs. 11.73% DO at LOE). Acute hypoxia significantly reduced aerobic scope by reducing [Formula: see text], while [Formula: see text] remained unchanged. Interestingly, acute hypoxia uncovered individual-level relationships between DO at LOE and [Formula: see text], [Formula: see text], and aerobic scope. We discuss our findings in the context of developmental trajectories and the role of aerobic performance in hypoxia tolerance. |
format |
Article in Journal/Newspaper |
author |
AT Wood Timothy Clark SJ Andrewartha NG Elliott PB Frappell |
author_facet |
AT Wood Timothy Clark SJ Andrewartha NG Elliott PB Frappell |
author_sort |
AT Wood |
title |
Developmental hypoxia has negligible effects on long-term hypoxia tolerance and aerobic metabolism of Atlantic salmon (Salmo salar) |
title_short |
Developmental hypoxia has negligible effects on long-term hypoxia tolerance and aerobic metabolism of Atlantic salmon (Salmo salar) |
title_full |
Developmental hypoxia has negligible effects on long-term hypoxia tolerance and aerobic metabolism of Atlantic salmon (Salmo salar) |
title_fullStr |
Developmental hypoxia has negligible effects on long-term hypoxia tolerance and aerobic metabolism of Atlantic salmon (Salmo salar) |
title_full_unstemmed |
Developmental hypoxia has negligible effects on long-term hypoxia tolerance and aerobic metabolism of Atlantic salmon (Salmo salar) |
title_sort |
developmental hypoxia has negligible effects on long-term hypoxia tolerance and aerobic metabolism of atlantic salmon (salmo salar) |
publishDate |
2017 |
url |
http://hdl.handle.net/10536/DRO/DU:30104973 https://figshare.com/articles/journal_contribution/Developmental_hypoxia_has_negligible_effects_on_long-term_hypoxia_tolerance_and_aerobic_metabolism_of_Atlantic_Salmon_Salmo_salar_/20824009 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
http://hdl.handle.net/10536/DRO/DU:30104973 https://figshare.com/articles/journal_contribution/Developmental_hypoxia_has_negligible_effects_on_long-term_hypoxia_tolerance_and_aerobic_metabolism_of_Atlantic_Salmon_Salmo_salar_/20824009 |
op_rights |
All Rights Reserved |
_version_ |
1802642373573869568 |