Circadian rhythm in locomotor activity in the burrower crayfish Procambarus acanthophorus (Villalobos 1948)
Por:
Mendoza-Vargas, Leonor, Ortega, Pilar, Fuentes-Pardo, Beatriz, Viccon-Pale, Jose A.
Publicada:
2 ene 2016
Resumen:
Crayfish Procambarus acanthophorus is a burrower that spends long
periods building deep tunnels to reach the water table during the dry
season; thus, its survival entertains a close ecological relationship
with the sediment. The aim of this work was to determine whether the
properties of the circadian rhythm of locomotor activity could be
modified by the sediment availability. Experiments were conducted in
both aquaria filled with sediment or filled with water, under cycles of
Bright and Dim Illumination (BI:DI, 12:12h) or under continuous DI:DI.
The rhythm of locomotor activity was entrained with the photoperiod in
aquaria with sediment or water; however, statistical differences between
conditions were obtained comparing the period and the level of activity
under free-running. These data suggest that the substrate's sensorial
perception could be encoded as a significant ecological parameter that
exerts influence in the physiological mechanisms that control the
temporal order in P. acanthophorus.
Filiaciones:
Mendoza-Vargas, Leonor:
Univ Autonoma Metropolitana Xochimilco, Dept Hombre & Ambiente, Mexico City, DF, Mexico
Ortega, Pilar:
Univ Nacl Autonoma Mexico, Fac Quim, Mexico City 04510, DF, Mexico
Fuentes-Pardo, Beatriz:
Univ Nacl Autonoma Mexico, Fac Med, Dept Fisiol, Mexico City 04510, DF, Mexico
Viccon-Pale, Jose A.:
Univ Autonoma Metropolitana Xochimilco, Dept Hombre & Ambiente, Mexico City, DF, Mexico
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