ムラサキイガイの放卵放精第1報生殖器官に見られる放出過程

概要

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The genital organ of Mytilus edulis is observable through the very thin and somewhat transparent body wall. The follicle liberates the reproductive substances perhaps by the contraction of its muscle fibres In fact, when a strip of mantle is dipped in KCl solution, the reproductive substances run out of the cut ends of follicles or genital canals only during the contracting phase, but not during the relaxing phase of the strip. The reproductive substances, which were pushed into the genital canal from the follicles are transferred through the gonoduct to the genital process by the cilliary movements of the epithelium of the canal, and no muscular activity such as peristalsis can be observed. Genital process sometimes exhibits a vigorous contraction or a rhythmical pulsation during the course of spawning.
公益社団法人日本水産学会の論文