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 c...

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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: Wiley 2006
Subjects:
atlantic cod
Gadus morhua
Online Access:http://dx.doi.org/10.1111/j.1095-8649.2006.01080.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2006.01080.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2006.01080.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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