Carbon dioxide chemoreception and the cardioventilatory effects of hypercarbia in fish.
In situ and in vivo experiments were performed on rainbow trout (Oncorhynchus mykiss) to examine (i) the direct effect of CO2 on the systemic vasculature and (ii) the influence of internal versus external hypercarbic acidosis on a variety of cardiovascular variables. Adult Atlantic salmon (Salmo sal...
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2001
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ftunivottawa:oai:ruor.uottawa.ca:10393/8996 2023-05-15T15:30:47+02:00 Carbon dioxide chemoreception and the cardioventilatory effects of hypercarbia in fish. McKendry, John E. Perry, Steve 2001 189 p. application/pdf http://hdl.handle.net/10393/8996 https://doi.org/10.20381/ruor-7590 unknown University of Ottawa (Canada) Source: Masters Abstracts International, Volume: 40-06, page: 1455. 9780612678408 http://hdl.handle.net/10393/8996 http://dx.doi.org/10.20381/ruor-7590 Biology Animal Physiology Thesis 2001 ftunivottawa https://doi.org/10.20381/ruor-7590 2021-01-04T17:05:20Z In situ and in vivo experiments were performed on rainbow trout (Oncorhynchus mykiss) to examine (i) the direct effect of CO2 on the systemic vasculature and (ii) the influence of internal versus external hypercarbic acidosis on a variety of cardiovascular variables. Adult Atlantic salmon (Salmo salar) were exposed to acute, localized environmental hypercarbia (2.0 and 4.0% CO2 in air) over the gills via injections (60 ml/kg) of equilibrated seawater directly into the buccal cavity. Adult Atlantic salmon (Salmo salar) and Pacific spiny dogfish (Squalus acanthias) were exposed to acute environmental hypercarbia (approximately 20 min). Experiments were performed to examine the influence of environmental hypercarbia on aspects of cardiorespiratory physiology, and in separate series of experiments the muscarinic antagonist atropine (100 nmol kg-1; both species) and complete branchial denervation (dogfish) were used to investigate putative CO2-chemoreceptive sites on the gills and their link to the autonomic nervous system. The homogeneity of the cardiovascular and ventilatory responses amongst fish to elevated ambient CO2 was investigated by exposing six species of fish to acute environmental hypercarbia (approximately 20 min). The experiments were performed in vivo using two marine teleosts, Atlantic salmon (Salmo salar) and Pacific sanddab (Citharychthus sordidus); two freshwater teleosts, brown bullhead (Ictalurus nebulosus) and American eel (Anguilla rostrata); as well as one marine elasmobranch, the Pacific spiny dogfish (Squalus acanthias). (Abstract shortened by UMI.) Thesis Atlantic salmon Salmo salar spiny dogfish Squalus acanthias uO Research (University of Ottawa - uOttawa) Pacific |
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uO Research (University of Ottawa - uOttawa) |
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ftunivottawa |
language |
unknown |
topic |
Biology Animal Physiology |
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Biology Animal Physiology McKendry, John E. Carbon dioxide chemoreception and the cardioventilatory effects of hypercarbia in fish. |
topic_facet |
Biology Animal Physiology |
description |
In situ and in vivo experiments were performed on rainbow trout (Oncorhynchus mykiss) to examine (i) the direct effect of CO2 on the systemic vasculature and (ii) the influence of internal versus external hypercarbic acidosis on a variety of cardiovascular variables. Adult Atlantic salmon (Salmo salar) were exposed to acute, localized environmental hypercarbia (2.0 and 4.0% CO2 in air) over the gills via injections (60 ml/kg) of equilibrated seawater directly into the buccal cavity. Adult Atlantic salmon (Salmo salar) and Pacific spiny dogfish (Squalus acanthias) were exposed to acute environmental hypercarbia (approximately 20 min). Experiments were performed to examine the influence of environmental hypercarbia on aspects of cardiorespiratory physiology, and in separate series of experiments the muscarinic antagonist atropine (100 nmol kg-1; both species) and complete branchial denervation (dogfish) were used to investigate putative CO2-chemoreceptive sites on the gills and their link to the autonomic nervous system. The homogeneity of the cardiovascular and ventilatory responses amongst fish to elevated ambient CO2 was investigated by exposing six species of fish to acute environmental hypercarbia (approximately 20 min). The experiments were performed in vivo using two marine teleosts, Atlantic salmon (Salmo salar) and Pacific sanddab (Citharychthus sordidus); two freshwater teleosts, brown bullhead (Ictalurus nebulosus) and American eel (Anguilla rostrata); as well as one marine elasmobranch, the Pacific spiny dogfish (Squalus acanthias). (Abstract shortened by UMI.) |
author2 |
Perry, Steve |
format |
Thesis |
author |
McKendry, John E. |
author_facet |
McKendry, John E. |
author_sort |
McKendry, John E. |
title |
Carbon dioxide chemoreception and the cardioventilatory effects of hypercarbia in fish. |
title_short |
Carbon dioxide chemoreception and the cardioventilatory effects of hypercarbia in fish. |
title_full |
Carbon dioxide chemoreception and the cardioventilatory effects of hypercarbia in fish. |
title_fullStr |
Carbon dioxide chemoreception and the cardioventilatory effects of hypercarbia in fish. |
title_full_unstemmed |
Carbon dioxide chemoreception and the cardioventilatory effects of hypercarbia in fish. |
title_sort |
carbon dioxide chemoreception and the cardioventilatory effects of hypercarbia in fish. |
publisher |
University of Ottawa (Canada) |
publishDate |
2001 |
url |
http://hdl.handle.net/10393/8996 https://doi.org/10.20381/ruor-7590 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Atlantic salmon Salmo salar spiny dogfish Squalus acanthias |
genre_facet |
Atlantic salmon Salmo salar spiny dogfish Squalus acanthias |
op_relation |
Source: Masters Abstracts International, Volume: 40-06, page: 1455. 9780612678408 http://hdl.handle.net/10393/8996 http://dx.doi.org/10.20381/ruor-7590 |
op_doi |
https://doi.org/10.20381/ruor-7590 |
_version_ |
1766361231154741248 |