Circadian and circatrigintan respiratory and related intermodulations in the crab Barytelphusa guerini.
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.
D000818:Animals; D003386:Brachyura / Q000502:physiology*; D002940:Circadian Rhythm; D012119:Respiration