Emergenz 1969 im Breitenbach. Schlitzer produktionsbiologische Studien (1)

Illies, Joachim

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Emergenz 1969 im Breitenbach. Schlitzer produktionsbiologische Studien (1)

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Illies, Joachim
Limnological River Station Schlitz, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Illies, J. (1971). Emergenz 1969 im Breitenbach. Schlitzer produktionsbiologische Studien (1). Archiv für Hydrobiologie, 69(1), 14-59.

Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-CE44-2

Abstract

Abstract Quantitative information about the number and biomass of water-insect adults in a given area of running water was obtained by setting a greenhouse over a small stream and collecting the daily amount of emerging specimens. Over a period of one year (April 1969 to March 1970) a total of 52,000 insects (with more than 6,000 phoretic mites) of about 150 species was collected, i. e. 4,684 individuals/m² (3.74 g dry organic matter/m²). For the more abundant species detailed information on monthly numbers, sex-ratio and dry-weight is given on tab. 1-7. This study forms the first contribution in a series of papers under preparation, dealing with the productivity of small lotic watersheds.