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Dotilla sulcata (Ocypodidae) - Mass Migration when Changing Feeding Places at Spring Low Water (Open Air Shots)   [Title Translation]

Dotilla sulcata (Ocypodidae) - Massenmigration zu neuen Freßplätzen bei Spring-Niedrigwasser (Freilandaufnahmen)   [Other Title]
Year of origin: 1968
Genre: Documentary Film
Locations of shooting: n/a

Credits
Production company: Dietrich B. E. Magnus (Darmstadt)
First released by: IWF (Göttingen)
Distributor: IWF (Göttingen)
Author: Dietrich B. E. Magnus


Keywords: Crustacea, Dotilla sulcata, Krabbe, Massenwanderung, Nahrungsaufnahme, crab, Crustacea, ingestion, mass migration
The film shows the spontaneous migration of the crab Dotilla sulcata, up to 1 cm in size, occupying a section of beach at Al Ghardaga on the Red Sea, at the beginning of the Spring ebb tide. A mass migration takes place to the dry lower lying area which was water covered during the previous neap tides. The crabs, packed closely together, follow the retreating edge of the water. No individual distance is maintained, aggression is not obvious. The crabs finally spread throughout the water free muddy area and occupy new feeding grounds there, which they then defend against each other and where they dig holes before the next flood tide.

Version 1
Language: NULL
Sound: n/a
Aspect: n/a
Duration: 6 min

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Version 2
Language: NULL
Sound: n/a
Aspect: n/a
Duration: 6 min

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Version 3
Language: NULL
Sound: n/a
Aspect: n/a
Duration: 6 min

» 
Length 66 m Request Copy Button
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License Information Film can be licensed