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Meeresplankton - Turbellaria (Strudelwürmer)

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Formal Metadata

Title Meeresplankton - Turbellaria (Strudelwürmer)
Alternative Title Marine Plankton - Turbellaria
Title of Series Meeresplankton
Number of Parts 35
Author Fiege, Dieter
Dahms, Hans-Uwe
Contributors Jürgen Kaeding (Kamera)
License No Open Access License:
German copyright law applies. This film may be used for your own use but it may not be distributed via the internet or passed on to external parties.
DOI 10.3203/IWF/C-12719
IWF Signature C 12719
Publisher IWF (Göttingen)
Release Date 2006
Language Silent film
Producer IWF (Göttingen)
Production Year 2005

Technical Metadata

IWF Technical Data Video-Clip ; F, 39 sec

Content Metadata

Subject Area Life Sciences
Abstract Das heterotrophe Zooplankton ist wesentlich heterogener zusammengesetzt als das Phytoplankton. Vertreter nahezu aller Tierstämme verbringen entweder ihren gesamten Lebenszyklus oder doch zumindest bestimmte Entwicklungsphasen im freien Wasser des Meeres und werden demgemäß als Holo- bzw. Meroplankton bezeichnet. Die dem Meroplankton zuzurechnenden Larven ähneln oftmals kaum den erwachsenen Tieren, die meist mittels einer Metamorphose aus ihnen hervorgehen (indirekte Entwicklung). Unter den Turbellaria entwickeln sich lediglich einige marine Polycladida über planktonische Larven. Aus einer zunächst Trochophora-ähnlichen Larve entwickelt sich durch die Ausbildung von 8 cilientragenden Lappen die sogenannte Müllersche Larve, die gelegentlich mit feinmaschigen Phytoplanktonnetzen gefangen wird. Aus der DVD: DAHMS, HANS-UWE (Hongkong); FIEGE, DIETER (Frankfurt a. M.). Meeresplankton. (C 12863)
Heterotrophic zooplankton is commonly much more diverse than phytoplankton. Representatives of most animal phyla either belong to the plankton throughout their life or have certain developmental phases in the plankton - hence they are called holo- or meroplankton, respectively. Meroplanktonic larvae do not resemble their parents, but transform into the adult form by metamorphosis (indirect development). Among the turbellarians only some representatives of the Polycladida develop a planktonic larvae that is called Müller's larva. It develops from a trochophore-like stage by the formation of 8 ciliated lobes. This larva can be caught using fine-meshed plankton nets. Thos larval phase lasts only a few days. The metamorphosis delivers a young turbellarian worm which can still be found in plankton samples before it settles to perform a benthic life. From the DVD: DAHMS, HANS-UWE (Hongkong); FIEGE, DIETER (Frankfurt a. M.). Marine Plankton. (C 12863)
Keywords Polycladida
Strudelwürmer
Turbellaria
Müllersche Larve
Larve, planktonische
Meroplankton
Holoplankton
Zooplankton, heterotrophes
Meeresplankton
marine plankton
zooplankton, heterotrophic
holoplankton
meroplankton
Müller's larva
Turbellaria
Polycladida
Series
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