The behavioural and physiological response of Atlantic cod Gadus morhua L. to short-term acute hypoxia

The average rate of swimming speed and the physiological status or stress of individual Atlantic cod Gadus morhua was monitored in response to short-term acute (STA) hypoxia (i.e. partial pressure of oxygen, reduced from 20·9 to 4·3 kPa within 1 h at 10°C). The STA hypoxic response of Atlantic cod w...

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Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: Johansen, J. L., Herbert, N. A., Steffensen, J. F.
Format: Article in Journal/Newspaper
Language:English
Published: 2006
Subjects:
Cod
Hypoxia
Oxygen
Stress
Swimming
atlantic cod
Gadus morhua
Online Access:https://curis.ku.dk/portal/da/publications/the-behavioural-and-physiological-response-of-atlantic-cod-gadus-morhua-l-to-shortterm-acute-hypoxia(fa9eb54b-2a3c-42c2-883f-44b82e7fdfdc).html
https://doi.org/10.1111/j.1095-8649.2006.01080.x
https://doi.org/10.1111/j.1095-8649.2006.01216.x
Description
Summary:The average rate of swimming speed and the physiological status or stress of individual Atlantic cod Gadus morhua was monitored in response to short-term acute (STA) hypoxia (i.e. partial pressure of oxygen, reduced from 20·9 to 4·3 kPa within 1 h at 10°C). The STA hypoxic response of Atlantic cod was associated with a large primary increase (+29%) and a large secondary decrease (-54%) in swimming speed as well as major physiological stress (e.g. plasma cortisol = 214·7 ng ml -1 and blood lactate = 2·41 mmol l -1 ).

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