Sepia officinalis (Sepiidae) - Embryonal- und Jugendentwicklung

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Formal Metadata

Title
Sepia officinalis (Sepiidae) - Embryonal- und Jugendentwicklung
Alternative Title
Sepia officinalis (Sepiidae) - Embryonic Development and Development of the Young
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 2505
Publisher
Release Date
1983
Language
Silent film
Producer
Manfred Zahn
Production Year
1977

Technical Metadata

IWF Technical Data
Film, 16 mm, 100 m ; F, 9 1/2 min

Content Metadata

Subject Area
Abstract
Tintenfisch. Gelege, Entwicklung des Embryos, Schlüpfen, Eingrabversuche, Drohen, Tarnen, Beutefang, Schwarmverhalten. Aquariumaufnahmen.
For the first time is shown in a film the discoidal embryonic development of a cephalopod in time controlled quick motion and normal motion pictures. The second part of the film shows the behaviour of the youngsters up to an age of about two months, it does not differ much from that of the adults - exept the lack of sexual behaviour. There are only differences concerning two signals: The frontal threatening gesture is shown by the hatchling and for the first few weeks almost steadily and youngsters joined in groups show permanently the red brown group dress with the signal spot.
Keywords Tintenfisch Gewöhnlicher Tintenfisch Sepia officinalis Tarnung Schwarmverhalten / Mollusca Embryo / Mollusca Schlüpfen / Mollusca Graben / Mollusca Drohen / Mollusca Beuteerwerb / Mollusca prey capture / Mollusca threatening / Mollusca digging / Mollusca hatching / Mollusca embryo / Mollusca swarming behaviour / Mollusca camouflage Sepia officinalis common sepia common cuttlefish

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