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Comparative studies of tidal rhythms. II: The dual clock control of the locomotor rhythms of two decapod crustaceans
The spontaneous locomotory activity of two intertidal crab species was studied in constant conditions. Most of the 57 animals displayed circalunidian rhythms in the laboratory. In 32% of the crabs,… Expand
Synchronization of the Locomotor Tidal Rhythm of Carcinus
1. A period of 11 days between tidemarks or below tidemarks entrains a persistent tidal rhythm in Carcinus . Two days exposure is effective between tidemarks but much less so below. 2. Laboratory… Expand
The pelagic and benthic phases of post-metamorphic Munida gregaria (Fabricius) (Decapoda, Anomura)
- B. G. Williams
- 22 January 1980
Abstract Some post-metamorphic individuals of Munida gregaria (Fabricius) are permanent members of the benthos while others spend at least part of their time in the water column. These two types of… Expand
Spontaneously induced rhythm of tidal periodicity in laboratory-reared Carcinus.
1. Laboratory-reared shore crabs show circadian rhythmicity which is transformed to approximate tidal rhythmicity after a period of chilling to 4°C. 2. Periodogram analysis of the results… Expand
Aspergillus terreus during hospital renovation.
The activity patterns of New Zealand mud crabs under field and laboratory conditions
Abstract The activity of the intertidal mud crabs Helice crassa Dana and Macrophthalmus hirtipes (Jacquinot) was studied concurrently in the field and under constant laboratory conditions. In the… Expand
The statistical analysis of tidal rhythms: Tests of the relative effectiveness of five methods using model simulations and actual data
Endogenous rhythms in intertidal organisms are often very complex and imprecise. Thus, confusing results are sometimes obtained when applying various interpretive analytical techniques. In an attempt… Expand
Comparative studies of tidal rhythms XIII. Is a clam clock similar to those of other intertidal animals
Under constant laboratory conditions the gaping and closure of the shell valves of the intertidal clam Chione stutchburyi show a clear pattern related initially to the tides in its natural habitat.… Expand
Phase-Responsiveness of the Circatidal Locomotor Activity Rhythm of Hemigrapsus Edwardsi (Hilgendorf) to Simulated High Tide
Timing of locomotor activity in the New Zealand rock lobster, Jasus edwardsii
Abstract Laboratory studies of the locomotor activity of individual rock lobsters (Jasus edwardsii) were made in a 24 h light/dark cycle (LD) and in constant dim red light. The majority of animals… Expand