Mathematics – Logic
Scientific paper
Apr 1932
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1932natur.129..543c&link_type=abstract
Nature, Volume 129, Issue 3258, pp. 543-544 (1932).
Mathematics
Logic
Scientific paper
WITH reference to the letter of Dr. F. H. A. Marshall on the above subject,1 I should like to direct attention to the relation of sexual maturity in marine invertebrates to the phases of the moon, a relation which was stated to exist many years ago and seemed at first scientifically incredible and imaginary, but which has been more recently verified by exact research carried out by several competent marine zoologists. The most famous case is that of the Palolo worm, Eunice viridis, the sexually mature posterior parts of which swarm at the surface of the sea off the islands of Samoa and Fiji in the mornings of the seventh, eighth, and ninth days after the full moon of November. The most recent paper on the subject is that by Silvio Ranzi of the Zoological Station of Naples.2 In many other species of Poly-chæta the sexual maturity and discharge of mature ova and sperms has been shown to synchronise with particular days of the lunar cycle, but in some localities certain species show no evidence of such a relation.
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