Effects of graded hypoxia on Atlantic salmon infected with amoebic gill disease
Atlantic salmon Salmo salar with amoebic gill disease (AGD) were exposed to a graded hypoxia (135-40 mmHg water PO2) and blood samples analysed for respiratory gases and pH at 119, 795 and 40 mmHg water PO2. There were no differences in the rate of oxygen uptake between infected and control fish. Ho...
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Blackwell Science Ltd
2000
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Online Access: | https://doi.org/10.1006/jfbi.2000.1370 http://ecite.utas.edu.au/19224 |
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ftunivtasecite:oai:ecite.utas.edu.au:19224 2023-05-15T15:31:10+02:00 Effects of graded hypoxia on Atlantic salmon infected with amoebic gill disease Powell, MD Fisk, DM Nowak, BF 2000 https://doi.org/10.1006/jfbi.2000.1370 http://ecite.utas.edu.au/19224 en eng Blackwell Science Ltd http://dx.doi.org/10.1006/jfbi.2000.1370 Powell, MD and Fisk, DM and Nowak, BF, Effects of graded hypoxia on Atlantic salmon infected with amoebic gill disease, Journal of Fish Biology, 57, (4) pp. 1047-1057. ISSN 0022-1112 (2000) [Refereed Article] http://ecite.utas.edu.au/19224 Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture Refereed Article PeerReviewed 2000 ftunivtasecite https://doi.org/10.1006/jfbi.2000.1370 2019-12-13T21:01:54Z Atlantic salmon Salmo salar with amoebic gill disease (AGD) were exposed to a graded hypoxia (135-40 mmHg water PO2) and blood samples analysed for respiratory gases and pH at 119, 795 and 40 mmHg water PO2. There were no differences in the rate of oxygen uptake between infected and control fish. However, arterial PO2, and pH were significantly lower in the infected fish whereas PCO2 was significantly higher in infected fish compared with controls prior to hypoxia and at 119 mmHg water PO2. At 795 and 40 mmHg water PO2 saturation, there were no significant differences in blood PO2 or pH although blood PCO2 was elevated in AGD affected fish at 50% hypoxia (795 mmHg water PO2). The elevated levels of PCO2 in fish affected by AGD resulted in a persistent respiratory acidosis even during hypoxic challenge. These data suggest that even though the fish were severely affected by AGD, the presence of AGD while impairing gas transfer under normoxic conditions, did not contribute to respiratory failure during hypoxia. (C) 2000 The Fisheries Society of the British isles. Article in Journal/Newspaper Atlantic salmon Salmo salar eCite UTAS (University of Tasmania) Journal of Fish Biology 57 4 1047 1057 |
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eCite UTAS (University of Tasmania) |
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ftunivtasecite |
language |
English |
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Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture |
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Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture Powell, MD Fisk, DM Nowak, BF Effects of graded hypoxia on Atlantic salmon infected with amoebic gill disease |
topic_facet |
Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture |
description |
Atlantic salmon Salmo salar with amoebic gill disease (AGD) were exposed to a graded hypoxia (135-40 mmHg water PO2) and blood samples analysed for respiratory gases and pH at 119, 795 and 40 mmHg water PO2. There were no differences in the rate of oxygen uptake between infected and control fish. However, arterial PO2, and pH were significantly lower in the infected fish whereas PCO2 was significantly higher in infected fish compared with controls prior to hypoxia and at 119 mmHg water PO2. At 795 and 40 mmHg water PO2 saturation, there were no significant differences in blood PO2 or pH although blood PCO2 was elevated in AGD affected fish at 50% hypoxia (795 mmHg water PO2). The elevated levels of PCO2 in fish affected by AGD resulted in a persistent respiratory acidosis even during hypoxic challenge. These data suggest that even though the fish were severely affected by AGD, the presence of AGD while impairing gas transfer under normoxic conditions, did not contribute to respiratory failure during hypoxia. (C) 2000 The Fisheries Society of the British isles. |
format |
Article in Journal/Newspaper |
author |
Powell, MD Fisk, DM Nowak, BF |
author_facet |
Powell, MD Fisk, DM Nowak, BF |
author_sort |
Powell, MD |
title |
Effects of graded hypoxia on Atlantic salmon infected with amoebic gill disease |
title_short |
Effects of graded hypoxia on Atlantic salmon infected with amoebic gill disease |
title_full |
Effects of graded hypoxia on Atlantic salmon infected with amoebic gill disease |
title_fullStr |
Effects of graded hypoxia on Atlantic salmon infected with amoebic gill disease |
title_full_unstemmed |
Effects of graded hypoxia on Atlantic salmon infected with amoebic gill disease |
title_sort |
effects of graded hypoxia on atlantic salmon infected with amoebic gill disease |
publisher |
Blackwell Science Ltd |
publishDate |
2000 |
url |
https://doi.org/10.1006/jfbi.2000.1370 http://ecite.utas.edu.au/19224 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
http://dx.doi.org/10.1006/jfbi.2000.1370 Powell, MD and Fisk, DM and Nowak, BF, Effects of graded hypoxia on Atlantic salmon infected with amoebic gill disease, Journal of Fish Biology, 57, (4) pp. 1047-1057. ISSN 0022-1112 (2000) [Refereed Article] http://ecite.utas.edu.au/19224 |
op_doi |
https://doi.org/10.1006/jfbi.2000.1370 |
container_title |
Journal of Fish Biology |
container_volume |
57 |
container_issue |
4 |
container_start_page |
1047 |
op_container_end_page |
1057 |
_version_ |
1766361651321241600 |