Menne
The Lippe - Alme System
The Menne is a tributary of the Altenau, which is a tributary to the Alme, the Lippe tributary which flows into the Rhine.
The Menne was studied by Meyer et al. in 2003, looking into the effect of karstic drought on macroinvertebrates. The aim of our study is to characterize the diatom communities in ephemeral and inundated locations along this stream.
Characterization of the Menne from Meyer 2003 <ref>MEYER, A., E.I. MEYER & C. MEYER 2003. Lotic communities of two small temporary karstic stream systems (East Westphalia, Germany) along a longitudinal gradient of hydrological intermittency. Limnologica 33 (4): 271–279. </ref>
Catchment area = 7.5 km2
Length = 7 km
Widths = 0.5 - 2 m
Permanent spring and springbrook = 150 m
Elevation = 200 -320 m --> überprüfen
Stream slope = 1.7-2.0 %
Conductivity = 500 - 630 μS/cm
pH = 7.0 - 7.4
water hardness = 15.7 - 16.2 ºdH
Substrate: limestone rocks, coarse gravel and cobbles
Debris: high before next flood event
Sampling sites
Perennial springbrook: M1, M3 Perennial spring: M2
Temporary stream section: M4, M5