Summer and winter cycles in plasma melatonin levels in the elephant seal (Mirounga Leonina)
Plasma melatonin concentration of immature male elephant seals was determined by radioimmunoassay. Comparison of concentrations during two 24-h periods, one in midsummer and one in midwinter, showed that there was a marked circadian cycle in winter which was greatly modified during the long day leng...
Published in: | Australian Journal of Biological Sciences |
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Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
CSIRO Publishing
1979
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Subjects: | |
Online Access: | https://espace.library.uq.edu.au/view/UQ:ba241f9 |