title: Sleep in an Amazonian manatee, Trichechus inunguis.
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.
authors.affiliation: Severtsov Institute of Evolutionary Morphology, USSR Academy of Sciences, Moscow.
authors.forename: L M
authors.initials: LM
authors.lastname: Mukhametov
authors.forename: O I
authors.initials: OI
authors.lastname: Lyamin
authors.forename: I S
authors.initials: IS
authors.lastname: Chetyrbok
authors.forename: A A
authors.initials: AA
authors.lastname: Vassilyev
authors.forename: R P
authors.initials: RP
authors.lastname: Diaz
mesh_terms: D000818:Animals; D001143:Arousal; D001921:Brain / Q000502:physiology*; D002940:Circadian Rhythm; D005618:Fresh Water; D008322:Mammals / Q000502:physiology*; D009043:Motor Activity; D010568:Peru; D012119:Respiration; D012890:Sleep / Q000502:physiology*; D014851:Wakefulness / Q000502:physiology