, Volume 42, Issue 7, pp 806–808 | Cite as

Rate-compensated synaptic events in antarctic fish: Consequences of homeoviscous cold-adaptation

  • J. A. Macdonald
  • J. C. Montgomery
Short Communications


At ambient sub-zero temperatures, muscles from antarctic fish produce spontaneous postsynaptic currents (MEPCs) of significantly shorter duration than those of temperate fishes. Fast decay of antarctic MEPCs is a predictable consequence of the increased membrane fluidity attributable to fatty acid unsaturation in cold-adapted animals.

Key words

Antarctic fish synaptic currents decay rates cold adaptation 


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Copyright information

© Birkhäuser Verlag Basel 1986

Authors and Affiliations

  • J. A. Macdonald
    • 1
  • J. C. Montgomery
    • 1
  1. 1.Department of ZoologyUniversity of AucklandAuckland(New Zealand)

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