Paracentrotus lividus (Echinoidea) - Ausstoßen von Eiern und Spermien

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Formal Metadata

Title
Paracentrotus lividus (Echinoidea) - Ausstoßen von Eiern und Spermien
Alternative Title
Paracentrotus lividus (Echinoidea) - Ejaculation of Eggs and Sperm
Author
License
CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
IWF Signature
E 968
Publisher
Release Date
1965
Language
Silent film
Producer
Hans-Rudolf Haefelfinger (Basel)
Production Year
1954

Technical Metadata

IWF Technical Data
Film, 16 mm, 51 m ; SW, 5 min

Content Metadata

Subject Area
Abstract
Steinseeigel. Die Geschlechtsprodukte werden durch die fünf auf der Oberseite liegenden Genitalporen in das Wasser abgegeben. Durch Bewegung der die Poren umgebenden Stacheln werden Eier und Spermien verteilt.
The film shows male and female sea-urchins during the expulsion of ovum and sperms. Close ups illustrate clearly the emergence of the sexual products out of the genital orifice, which is surrounded by mobile spines. The ovum and spermatoza are distributed in water by means of the movements of the spines (more clearly intensive in the female than the male).
Keywords Seeigel Steinseeigel Paracentrotus lividus Eiablage / Echinodermata egg-laying / Echinodermata oviposition / Echinodermata Paracentrotus lividus sea urchin Encyclopaedia Cinematographica

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