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Zur Methodik der Driftmessung im Rahmen produktionsbiologischer Untersuchungen in Fließgewässern. Schlitzer produktionsbiologische Studien (3)

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Meijering,  Meertinus P. D.
Limnological River Station Schlitz, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Citation

Meijering, M. P. D. (1972). Zur Methodik der Driftmessung im Rahmen produktionsbiologischer Untersuchungen in Fließgewässern. Schlitzer produktionsbiologische Studien (3).


Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-CE34-6
Abstract
Abstract All gammarids leaving a 10 m long section of a woodland tributary by drifting downstream, together with those moving upstream, were counted over a period of 28 days. Losses from both ends of the controlled section halved its Gammarus-population within 20 days. The daily losses from drifting remained fairly constant at between 1 and 2 % of the standing crop. During the first and second weeks those moving upstream were the more numerous, but later on these movements were almost entirely stopped.