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Meeresplankton   [Series Title]

Meeresplankton - Rotatoria (Rädertiere)   [Other Title]
Marine Plankton   [Series Title]
Marine Plankton - Rotatoria   [Title Translation]
Rok: 2005
Žánr: Documentary Film
Exteriéry: n/a

Titulky:
Production company: IWF (Göttingen)
First released by: IWF (Göttingen)
Photography: Jürgen Kaeding
Distributor: IWF (Göttingen)
Author: Hans-Uwe Dahms


Klíčová slova: heterotrophes, Holoplankton, Meeresplankton, Meroplankton, Rädertierchen, Rotatoria, Zooplankton, heterotrophic, holoplankton, marine plankton, meroplankton, Rotifer, zooplankton
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). Whereas rotifers are very abundant and diverse in freshwater plankton, there are only a few species in the marine plankton. Most of the rotifers are very small (<1 mm) and consist of about 1000 cells (eutely). The body is surrounded by a proteinaceous shell (lorica) made of keratin that shows spiniform emarginations. A charasteristic feature is the corona at the anterior part of the body. The beat of its cilia serve for locomotion and feeding. From the DVD: DAHMS, HANS-UWE (Hongkong); FIEGE, DIETER (Frankfurt a. M.). Marine Plankton. (C 12863)

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Zvuk: n/a
Aspect: n/a
Minutáž: 32 sec

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