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Journal Article

Neoperla (Plecoptera, Perlidae) emerging from a mountain stream in Central Africa. Schlitzer produktionsbiologische Studien (19)

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Zwick,  Peter
Limnological River Station Schlitz, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Citation

Zwick, P. (1976). Neoperla (Plecoptera, Perlidae) emerging from a mountain stream in Central Africa. Schlitzer produktionsbiologische Studien (19). Internationale Revue der Gesamten Hydrobiologie, 61(5), 683-697.


Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-CD52-E
Abstract
Abstract Study of numerous adults was done for 5 species of Neoperla taken in an emergence trap on the stream Kalengo, Republic of Zaire, over 16 months (table 1). Taxonomic characters are evaluated considering individual variation and variation between disjunct populations. The assumption by previous authors of only 1 variable species of Neoperla in Africa is refuted. Some bionomic data for the 2 common species in the material are presented. Biomass (dry weight) is 462.4 mg/m2/yr or 12 % of total biomass of emerging insects (BÖTTGER 1975). Close agreement with figures reported for European streams (ILLIES 1971) may be accidental as biocoenotic structures are very different.