dc.contributor.author |
Wells, RMG |
en |
dc.contributor.author |
Dunphy, Brendon |
en |
dc.date.accessioned |
2012-03-06T00:59:01Z |
en |
dc.date.issued |
2009 |
en |
dc.identifier.citation |
COMP BIOCHEM PHYS A 154(1):56-60 Sep 2009 |
en |
dc.identifier.issn |
1095-6433 |
en |
dc.identifier.uri |
http://hdl.handle.net/2292/13027 |
en |
dc.description.abstract |
Oxygen equilibrium data were obtained for intact erythrocytes from Pagrus auratus and the pH-dependence of the fixed-acid Bohr and Root effects described. Indicators of aerobic-anaerobic poise were then measured following a period of strenuous exercise induced by angling capture. Haematological indices and plasma metabolites were evaluated with respect to their potential impact on the blood oxygen transport mechanism. An increase in post-capture haemoglobin content, blood lactate, and glucose were observed. The fall in caudal venous pH from 7.53 to 7.41, reflecting the acid-base status of blood draining the working tail musculature, remained within the operational zone of the maximal fixed-acid Bohr effect (Phi(7.4-7.8) = -0.95), but above the critical pH at which the Root effect suppresses oxygen transport capacity. These stress-induced changes reflect a strategy of optimal O-2 unloading to tissues with the Root effect unlikely to be expressed in the swimming vasculature. (C) 2009 Elsevier Inc. All rights reserved. |
en |
dc.language |
EN |
en |
dc.publisher |
Elsevier |
en |
dc.relation.ispartofseries |
Comparative Biochemistry and Physiology - Part A: Molecular & Integrative Physiology |
en |
dc.rights |
Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher.
Details obtained from http://www.sherpa.ac.uk/romeo/issn/1095-6433/ |
en |
dc.rights.uri |
https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm |
en |
dc.subject |
Blood-O-2 affinity |
en |
dc.subject |
Fish |
en |
dc.subject |
Glucose |
en |
dc.subject |
Haemoglobin |
en |
dc.subject |
Lactate |
en |
dc.subject |
Root effect |
en |
dc.subject |
TROUT SALMO-GAIRDNERI |
en |
dc.subject |
RAINBOW-TROUT |
en |
dc.subject |
BUFFERING CAPACITY |
en |
dc.subject |
EXHAUSTING EXERCISE |
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dc.subject |
STRENUOUS EXERCISE |
en |
dc.subject |
VISUAL PERFORMANCE |
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dc.subject |
CAPTURE STRESS |
en |
dc.subject |
BIG GAMEFISH |
en |
dc.subject |
FISH |
en |
dc.subject |
MUSCLE |
en |
dc.title |
Potential impact of metabolic acidosis on the fixed-acid Bohr effect in snapper (Pagrus auratus) following angling stress |
en |
dc.type |
Journal Article |
en |
dc.identifier.doi |
10.1016/j.cbpa.2009.04.625 |
en |
pubs.issue |
1 |
en |
pubs.begin-page |
56 |
en |
pubs.volume |
154 |
en |
dc.rights.holder |
Copyright: Elsevier |
en |
dc.identifier.pmid |
19427392 |
en |
pubs.end-page |
60 |
en |
dc.rights.accessrights |
http://purl.org/eprint/accessRights/RestrictedAccess |
en |
pubs.subtype |
Article |
en |
pubs.elements-id |
89006 |
en |
pubs.org-id |
Science |
en |
pubs.org-id |
Biological Sciences |
en |
pubs.record-created-at-source-date |
2010-09-01 |
en |
pubs.dimensions-id |
19427392 |
en |