| Title | Temperature dependency of miniature end plate currents from the extraocular muscle of Antarctic teleost fishes |
| Author | Cox, S.L.; Macdonald, J.A. |
| Author Affil | Cox, S.L., University of Auckland, School of Biological Sciences, Auckland, New Zealand. Other: National Institute of Water and Atmospheric Research, New Zealand |
| Source | Polar Biology, 31(6), p.709-715, . Publisher: Springer-Verlag, Berlin, Federal Republic of Germany. ISSN: 0722- 4060 |
| Publication Date | May 2008 |
| Notes | In English. 39 refs. GeoRef Acc. No: 284712 |
| Index Terms | Southern Ocean; anatomy; Chordata; ecology; histograms; Pisces; statistical analysis; temperature; Vertebrata |
| Abstract | The effects of temperature on the decay phase of post-synaptic currents were examined to determine the extent of temperature compensation in the inferior oblique extraocular muscles of four Antarctic fishes (Trematomus bernacchii, Trematomus pennellii, Trematomus hansoni, and Pagothenia borchgrevinki, Family Nototheniidae). At ambient temperatures, different fish produce miniature end plate currents (MEPCs), which vary in duration and rate of decay. Low temperatures normally prolong MEPCs, however, Antarctic fishes were found to produce MEPCs of significantly shorter duration than predicted (based on back-extrapolation of temperate fish data to sub-zero temperatures). (mod. journ. abst.) |
| URL | http://hdl.handle.net/10.1007/s00300-008-0409-0 |
| Publication Type | journal article |
| Record ID | 84173 |