Observations on the Activity Patterns in Juveniles of the Pink Shrimp, Penaeus Duorarum
Abstract:The daily pattern of locomotor and burrowing activity of juveniles of Penaeus duorarum was observed in the laboratory under constant conditions of light intensity, water current, and water level. A bimodal pattern of nocturnal activity with a period of diurnal burrowing was observed near the times of the new and the full moon. A daily progression in the times of nocturnal activity peaks was observed which appeared to correspond with the normal daily tide progression in the area of capture.
The rhythmic pattern in the behavior of P. duorarum was persistent, but could be modified by experimentally changing light regimes and water levels.
This study indicated that activity of pink shrimp at any given time in the field is probably a resultant of the interaction of the environmental stimuli which are present and the rhythmic patterns of the previously experienced stimuli.
Document Type: Research Article
Publication date: December 1, 1967
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