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Investigation of the cardiovascular control of notothenioid fish (Pagothenia borchgrevinki and Trematomus bernacchii)
Entry ID: K057_1992_1993_NZ_1


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Summary
Abstract: It has been shown that under stress, red blooded notothenioids increase their haematocrit by contracting the spleen thus releasing red blood cells and increasing the heart rate. The increase in heart rate appears to be the result of a decrease in cholinergic inhibition rather than adrenergic (adrenaline mediated) stimulation. The aim was to determine, in vivo, if levels of circulating adrenaline change during stress. The control of blood flow through the heart and gills of Antarctic fish was experimentally investigated on individuals of Pagothenia borchgrevinki and Trematomus bernacchii. Fish were dissected to gain an understanding of the blood system and to determine where to gain access to the dorsal and ventral aorta. Resin casts of the blood system were made. The location of cholinergic, adrenergic and peptidergic receptors in the heart, gills and blood vessels was investigated from sections and isolated blood vessels using immunohistochemical techniques. Fish were stressed by forcing them to swim and physiological parameters (heart rate and ventral aortic blood pressure) were measured via the indwelling cannulae. Blood samples were taken to measure haematocrit, blood haemoglobin, plasma osmolarity and plasma adrenaline. Samples were also analyzed for catecholamines. The effects of two stressors (hypoxia and swimming) on blood flow and heart rate and the factors controlling these changes was investigated. A range of drugs was injected into the fish and their effects were monitored (dorsal and ventral blood pressure, blood pressures, heart rate, cardiac output, stroke volume and resistance to blood flow at the gills and at the systemic capillaries).

Related URL
Link: VIEW RELATED INFORMATION
Description: The investigators homepage


Geographic Coverage
 N: -77.85 S: -77.85  E: 166.75  W: 166.75

Temporal Coverage
Start Date: 1992-11-01
Stop Date: 1992-12-31


Location Keywords
CONTINENT > ANTARCTICA
CONTINENT > ANTARCTICA > MCMURDO SOUND
GEOGRAPHIC REGION > POLAR


Science Keywords
BIOLOGICAL CLASSIFICATION >ANIMALS/VERTEBRATES >FISH    [Definition]


ISO Topic Category
BIOTA
OCEANS


Platform
LABORATORY    [Information]


Quality
The data is in the publications. Please contact the investigator for more information.


Keywords
Pagothenia borchgrevinki
blood chemistry
stress
cardiovascular system


Data Set Progress
COMPLETE


Data Center
Antarctica New Zealand, New Zealand Antarctic Institute, New Zealand    [Information]
Data Center URL: http://www.antarcticanz.govt.nz/

Data Center Personnel
Name: SHULAMIT GORDON
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Personnel
BILL DAVISON
Role: INVESTIGATOR
Phone: +64 3 364 2029
Fax: +64 3 364 2590
Email: bill.davison at canterbury.ac.nz
Contact Address:
School of Biological Sciences
University of Canterbury
Private Bag 4800
City: Christchurch
Country: New Zealand


CEISHA POIROT
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: c.poirot at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


SHULAMIT GORDON
Role: DIF AUTHOR
Phone: +64 3 358 0200
Fax: +64 3 358 0211
Email: s.gordon at antarcticanz.govt.nz
Contact Address:
Antarctica New Zealand
Private Bag 4745
City: Christchurch
Country: New Zealand


Publications/References
Axelsson, M. Davison, W. Forster, M.E. Farrell, A.P. Cardiovascular responses of the red-blooded Antarctic fishes Pagothenia bernacchii and P. borchgrevinki. Journal of experimental biology 167: 179-201, 1992.

Axelsson, M. Davison, W. Forster, M. Nilsson, S. Blood pressure control in the Antarctic fish Pagothenia borchgrevinki. Journal of experimental biology 190: 265-279, 1994.

Davison, W. Axelsson, M. Forster, M. Nilsson, S. Cardiovascular responses to acute handling stress in the Antarctic fish Trematomus bernacchii are not mediated by circulatory catecholamines. Fish physiology and biochemistry 14(3): 253-257, 1995.

Davison, W. Axelsson, M. Nilsson, S. Forster, M. Cardiovascular control in Antarctic notothenioid fishes. Comparative biochemistry and physiology 118A(4): 1001-1008, 1997.

Fenwick, J.C. Davison, W. Forster, M.E. In vivo calcitropic effect of some vitamin D compounds in the marine Antarctic teleost, Pagothenia bernacchii. Fish physiology and biochemistry 12(6): 479-484, 1994.

Egginton, S. Davison, W. Effects of environmental and experimental stress on Antarctic fish. in: Cold ocean physiology.Pörtner H.O. Playle R.L. (eds) Cambridge: Cambridge University Press. 1998. pp.299-326 [Society for Experimental Biology seminar series no. 66] ISBN 0521580781

Forster, M.E. Davison, W. Axelsson, M. Sundin, L. Franklin, C.E. Gieseg, S. 1998 Catecholamine release in heat-stressed Antarctic fish causes proton extrusion by the red cells. Journal of comparative physiology B 168: 345-352

Sundin, L. Axelsson, M. Davison, W. Forster, M. 1999 Cardiovascular responses to adenosine in the Antarctic fish Pagothenia borchgrevinki. Journal of experimental biology 202: 2259-2267

Creation and Review Dates
DIF Creation Date: 2007-05-10
Last DIF Revision Date: 2009-03-31


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