The effect of water pressure change on the scallop appeared in periodic expansion-contraction movement of its adductor muscle
1991
Fujii, T. (National Research Inst. of Aquaculture, Tamaki, Mie (Japan)) | Sugiyama, M.
Effects of periodical changes of water pressure and light-dark conditions on the movement of adductor muscle of a scallop, Patinopecten yessoensis (Jay), were investigated in the laboratory. The expansion-contraction movement of adductor muscle was measured (recorded) by straingauge method under the conditions of 12h water-level cycle with continuous dark and of 16h water-level cycle with 12h-12h light-dark alternation respectively. FFT spectral analysis showed that periodic elements corresponding to each periodic factor of the environmental conditions given to the shell were present in the adductor muscle movement, which suggested that the movement might be affected by tidal change as well as day-night change in natural environment
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