Entrainment of the Circatidal Swimming Activity Rhythm in the Cumacean Dimorphostylis asiatica (Crustacea) to 12.5-hour Hydrostatic Pressure Cycles(Behavior Biology)

スポンサーリンク

概要

• 論文の詳細を見る

• The cumacean Dimoriphostylis asiatica (Crustacea) exhibits a circatidal swimming activity rhythm. The animals were exposed to a 12.5 hr sinusoidal change of hydrostatic pressure of 0.3 atm amplitude in the laboratory. Under constant dark conditions, most of the specimens were entrained to a daily bimodal swimming activity rhythm by the hydrostatic pressure cycle. A small number of individuals exhibited a unimodal daily rhythm, with no apparent entraining from the administered cycles. A marked feature was a flexible phase relationship between the entrained daily bimodal rhythm and the hydrostatic pressure cycles: the swimming activity of most of the specimens occurred around the pressure-decreasing phase, but for a small number of individuals it coincided with the pressure-increasing phase. Such flexibility suggests a weak entraining effect of hydrostatic pressure on the circatidal rhythm of this species. When exposed to 24 hr light-dark cycles and a hydrostatic pressure cycle simultaneously, the specimens exhibited a rhythmic activity entrained by the hydrostatic pressure cycle during the dark period, which closely resembles the temporal activity pattern of this species in the field. The light cycles entrained the swimming activity via direct inhibition and induction of activity (i.e., masking). Under light-dark conditions, the specimens exhibited activity on the pressure-increasing phase more frequently compared with specimens kept in constant darkness.

• 社団法人日本動物学会の論文
• 2004-01-25

著者

• Akiyama Tadashi

  Ushimado Marine Laboratory Okayama Univetsity

• Akiyama Tadashi

  Ushimado Marine Laboratory Okayama University

関連論文

• A New Species of Deep-Sea Cumacean Genus Eudrella from Okinawa Trough, Northwest Pacific
• Tidal Adaptation of a Circadian Clock Controlling a Crustacean Swimming Behavior
• Entrainment of the Circatidal Swimming Activity Rhythm in the Cumacean Dimorphostylis asiatica (Crustacea) to 12.5-hour Hydrostatic Pressure Cycles(Behavior Biology)
• CUMACEAN GENUS EUDRELLA (CRUSTACEA, CUMACEA, LEUCONIDAE) FROM JAPANESE WATERS(Taxonomy and Systematics,Abstracts of papers presented at the 75^ Annual Meeting of the Zoological Society of Japan)
• Phase Setting of a Tidal Clock : Entraining Effect of 12.5hr Hydrostatic Pressure Cycles and 24hr Light-dark Cycles on the Swimming Activity Rhythm of the Cumacean Dimorphostylis asiatica (Crustacea)(Entrainment of Biological Clocks,Symposium,PROCEEDING O
• SOME NEW SPECIES OF DEEP-SEA EUDRELLA (CRUSTACEA, CUMACEA) FROM JAPANESE WATERS(Taxonomy and Systematics,Abstracts of papers presented at the 74^ Annual Meeting of the Zoological Society of Japan)

スポンサーリンク