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Temperature dependence of neurotransmitter release in the antarctic fishPagothenia borchgrevinki

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Summary

The quantal contents of endplate potentials from extraocular muscles of an antarctic fishPagothenia borchgrevinki were measured over a range of temperatures. Quantal release was maximal at about 5°C but showed little dependence on temperature between −2°C and 10°C. Above 10°C quantal content declined until release ceased about 18°C. In view of the fact that the ambient temperature at which these fish live is constant at −1.9°C, the results suggest thatPagothenia borchgrevinki is only partially adapted to its environment despite 25 million years acclimatization.

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References

  1. Kennett, J.P., J. geophys. Res.82 (1977) 3843.

    Article  CAS  Google Scholar 

  2. Littlepage, J.L., in: Biology of the antarctic seas, vol. 2, p. 1. Ed. G.A. Llano. American Geophysical Union, Washington, D.C. 1965.

    Google Scholar 

  3. Andriashev A.P., in: Adaptations within antarctic ecosystems, p. 351. Ed. G.A. Llano, Smithsonian Institution, Washington, D.C. 1977.

    Google Scholar 

  4. Hoyland, J., Cossins, A.R., and Hill, M.W., J. comp. Physiol.129 (1979) 241.

    Article  Google Scholar 

  5. Macdonald, J.A., J. comp. Physiol.142 (1981) 411.

    Article  Google Scholar 

  6. Macdonald, J.A., and Montgomery, J.C., J. comp. Physiol.147 (1982) 237.

    Article  Google Scholar 

  7. Boulenger, G.A., in: Rep. Coll. Nat. Hist. Antarct. Reg. Voy. ‘Southern Cross’, London1902 174.

  8. Dobbs, G.H., and DeVries, A.L., Marine Biol.29 (1975) 50.

    Article  Google Scholar 

  9. Pockett, S., and Slack, J.A., Brain Res.243 (1982) 350.

    Article  CAS  PubMed  Google Scholar 

  10. Pockett, S., and Slack, J.A., Brain Res.258 (1983) 296.

    Article  CAS  PubMed  Google Scholar 

  11. Pockett, S., and Slack, J.A., Brain Res.268 (1983) 349.

    Article  CAS  PubMed  Google Scholar 

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Authors and Affiliations

  1. Departments of Physiology and Zoology, University of Auckland, Private Bag, Auckland, New Zealand

    S. Pockett & J. A. Macdonald

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  1. S. Pockett
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  2. J. A. Macdonald
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Additional information

The authors wish to thank the staff of New Zealand's Scott Base, Antarctica, without whose cooperation the work would have been impossible. Mr J. Quinn of the Auckland University Physiology Department gave invaluable assistance with computing and electronics and the Antarctic Division of the New Zealand Department of Scientific and Industrial Research provided transportation and logistic support. The project was financially supported by the New Zealand University Grants Committee and the Auckland University Research Committee. S.P. was a Senior Fellow of the N.Z. Medical Research Council.

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Pockett, S., Macdonald, J.A. Temperature dependence of neurotransmitter release in the antarctic fishPagothenia borchgrevinki. Experientia 42, 414–415 (1986). https://doi.org/10.1007/BF02118635

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