Porifera: Sudden Sperm Release by Tropical Demospongiae

Science  30 Oct 1970:
Vol. 170, Issue 3957, pp. 538-539
DOI: 10.1126/science.170.3957.538


Three tropical marine demosponges inhabiting the deep coral reefs of Jamaica expel immense clouds of milky fluid from exhalant apertures. Analysis of samples shows this fluid to contain mature male gametes. The behavior is an individual or a population event in different species.