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  Food search and swimming speed in Daphnia

Larsson, P., & Kleiven, O. T. (1996). Food search and swimming speed in Daphnia. In P. H. Lenz, D. K. Hartline, J. E. Purcell, & D. L. Macmillan (Eds.), Zooplankton: Sensory Ecology and Physiology (pp. 375-387). Amsterdam: Gordon & Breach.

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Larsson_1996.pdf (beliebiger Volltext), 3MB
 
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 Urheber:
Larsson, Petter1, Autor           
Kleiven, Ole T., Autor
Affiliations:
1Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_976547              

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 Zusammenfassung: Swimming behaviour and distribution of Daphnia magna were studies in relation to various concentrations of the food alga Scenedesmus acutus. The experiments were done in a ring-shaped flow through chamber in the light and in the dark. Daphnia behaviour was monitored with a video camera sensitive to infrared light. The daphnids showed rapid swimming in visible light and at low food concentrations. At higher food concentrations the swimming speed decreased. Only slow swimming was observed in the dark despite the food concentration. In a food-gradient, the animals congregated in the areas with the highest algal densities when there was light, whereas animals in the dark showed a weaker reaction. Daphnids do not seem to have a directed food search guide by vision or chemical signals, but seem to swim horizontally in the light until they meet food patches

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Sprache(n): eng - English
 Datum: 1996
 Publikationsstatus: Erschienen
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 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: -
 Identifikatoren: eDoc: 208153
Anderer: 1653/S 37282
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Titel: Zooplankton: Sensory Ecology and Physiology
Genre der Quelle: Buch
 Urheber:
Lenz, P. H., Herausgeber
Hartline, D. K., Herausgeber
Purcell, J. E., Herausgeber
Macmillan, D. L., Herausgeber
Affiliations:
-
Ort, Verlag, Ausgabe: Amsterdam : Gordon & Breach
Seiten: - Band / Heft: - Artikelnummer: - Start- / Endseite: 375 - 387 Identifikator: ISBN: 90-5699-022-5