Thalassoma bifasciatum (Labridae) - Aufsuchen des nächtlichen Ruheplatzes

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Formal Metadata

Title
Thalassoma bifasciatum (Labridae) - Aufsuchen des nächtlichen Ruheplatzes
Alternative Title
Thalassoma bifasciatum (Labridae) - Swimming to the Nocturnal Hiding-place
Author
License
CC Attribution - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
Identifiers
IWF Signature
E 1777
Publisher
Release Date
1976
Language
Silent film
Producer
Institut für den Wissenschaftlichen Film (IWF)
Production Year
1970

Content Metadata

Subject Area
Abstract
Freiwasseraufnahmen (Bahamas). Der Lippfisch übernachtet in Höhlen des Korallenriffs, wobei jedes Individuum immer wieder dieselbe Höhle aufsucht.
Wrasses belong to the fishes that are active during day-time. They go to hiding-places before nightfall and stay there until sunrise. Whereas numerous wrasses dig themselves into sandy bottom, Thalassoma bifasciatum is a species that goes for shelter into narrow crevices, holes or among densely growing algae that cover the substrate. Such places are territorial property and are usually retained for longer time. The film shows a terminal male that enters its nocturnal refuge in a block of coral on 3 consecutive evenings. Aggressive behaviour is shown against potential competitors. Moreover, the film documents a peculiar "satellite"-relationship between terminal male and a smaller male with intermediate color pattern.
Keywords Lippfisch Thalassoma Blaukopf-Junker Thalassoma bifasciatum Ruheverhalten / Pisces resting behaviour / Pisces Thalassoma bifasciatum blue-headed wrasse Thalassoma wrasse
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