• Biology
  • Published 1989

Hypoxic responses in a fish from a stable environment: blood oxygen transport in the antarctic fish Pagothenia borchgrevinki

@inproceedings{Wells1989HypoxicRI,
  title={Hypoxic responses in a fish from a stable environment: blood oxygen transport in the antarctic fish Pagothenia borchgrevinki},
  author={Rufus M. G. Wells and Gordon C. Grigg and Lyn A. Beard and Graeme Summers},
  year={1989}
}
The effects of hypoxic exposure on whole-blood oxygen-affinity were examined in the antarctic fish Pagothenia borchgrevinki. Fish exposed to PO2 = 60 mmHg for 11-14 days at -1.5 degrees C had a PO2 value of 20.6 plus or minus 4.8 mm Hg (S.D., N=13) at pH 8.16, compared with 3l.1 plus or minus 4.3 mm Hg (N=10) at pH8.00 for normoxic fish. Exposure to low oxygen levels resulted in a significant (66%) rise in haemaglobin concentration, and erythrocyte [ATP] decreased by approximately 27%. There… CONTINUE READING

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