Menne: Unterschied zwischen den Versionen
(/* Characterization of the Menne from Meyer 2003 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…) |
(/* Characterization of the Menne from Meyer 2003 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…) |
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| (4 dazwischenliegende Versionen desselben Benutzers werden nicht angezeigt) | |||
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Catchment area = 7.5 km2<br> | Catchment area = 7.5 km2<br> | ||
Length = 7 km<br> | Length = 7 km (3 401.849 m)<br> | ||
Widths = 0.5 - 2 m<br> | Widths = 0.5 - 2 m<br> | ||
Permanent spring and springbrook = 150 m<br> | Permanent spring and springbrook = 150 m<br> | ||
Elevation = 195 - 245 m<br> | Elevation = 195 - 245 m<br> | ||
Stream slope = 1.7 - 2.0 %<br> | Stream slope = 1.7 - 2.0 %<br> | ||
Substrate: limestone rocks, coarse gravel and cobbles<br> | Substrate: limestone rocks, coarse gravel and cobbles<br> | ||
Debris: high before next flood event<br> | Debris: high before next flood event<br> | ||
Average data | |||
{| class="wikitable" | |||
|- | |||
! Variables !! Meyer et al 2003 !! Our study | |||
|- | |||
| Q (m/s) || / || 0.01 - 0.1 | |||
|- | |||
| Conductivity (µS/cm) || 500 - 630 || 350 - 601 | |||
|- | |||
| pH || 7 - 7.4 || 7.85 - 8.13 | |||
|- | |||
| Temp || / || 12 - 13.6 | |||
|- | |||
| Water hardness (ºdH) || 15.7 - 16.2 || / | |||
|} <br> | |||
Tributary to [[Altenau]] | Tributary to [[Altenau]] | ||
| Zeile 56: | Zeile 70: | ||
[[Links]] | [[Links]] | ||
[[ | Erstes Sampling [[22.05.2020]] | ||
Zweites Sampling [[09.09.2020]] | |||
[[ | |||
Aktuelle Version vom 20. April 2021, 16:22 Uhr
Hypotheses regarding ecology and biogeography of diatoms in temporary streams in each aquatic state.
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>
ELWAS Gewässer-Id: 2782852 (keine Info)
Catchment area = 7.5 km2
Length = 7 km (3 401.849 m)
Widths = 0.5 - 2 m
Permanent spring and springbrook = 150 m
Elevation = 195 - 245 m
Stream slope = 1.7 - 2.0 %
Substrate: limestone rocks, coarse gravel and cobbles
Debris: high before next flood event
Average data
| Variables | Meyer et al 2003 | Our study |
|---|---|---|
| Q (m/s) | / | 0.01 - 0.1 |
| Conductivity (µS/cm) | 500 - 630 | 350 - 601 |
| pH | 7 - 7.4 | 7.85 - 8.13 |
| Temp | / | 12 - 13.6 |
| Water hardness (ºdH) | 15.7 - 16.2 | / |
Tributary to Altenau
Sampling sites
| Sampling site | Lat | Long | Elevation [m] |
|---|---|---|---|
| M1 | 51.589308 N | 8.755923 E | 245 |
| M2 | 51.589975 N | 8.754721 E | 244 |
| M3 | 51.590694 N | 8.754786 E | 231 |
| M4 | 51.597248 N | 8.760392 E | 208 |
| M5 | 51.602579 N | 8.762742 E | 195 |
Perennial springbrook: M1, M3 Perennial spring: M2
Temporary stream section: M4, M5
Weitere Info
Erstes Sampling 22.05.2020 Zweites Sampling 09.09.2020