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Sleep in an Amazonian manatee, Trichechus inunguis
L M Mukhametov1, O I Lyamin, I S Chetyrbok
1Severtsov Institute of Evolutionary Morphology, USSR Academy of Sciences, Moscow.
Experientia
|April 15, 1992
Abstract:
For the first time, sleep was studied in a representative of the order of Sirenia. Slow wave sleep occupied 27%, and paradoxical sleep 1% of the total recording time in the Amazonian manatee. Trichechus inunguis. The circadian rhythmicity of sleep was pronounced. During the sleep period, the manatee woke up for a short time for each respiratory act. Interhemispheric asynchrony of the electrocortical slow wave activity was found.