title: Circadian and circatrigintan respiratory and related intermodulations in the crab Barytelphusa guerini.
abstract: Respiration and related physiologic variables in different tissues of Barytelphusa guerini and the respiration of this freshwater crab as a whole are closely synchronized in phase and in frequency along the circadian scale, in the face of large differences in circadian amplitude. A very close timing of most of the 36 variables examined in 2 separate circadian profiles and a modulation of some of these variables in added profiles as a function of lunar stage are clearly demonstrable, statistically significant and illustrative of time relations at 2 interacting frequencies.
mesh_terms: D000818:Animals; D003386:Brachyura / Q000502:physiology*; D002940:Circadian Rhythm; D012119:Respiration