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=Sampling= | =Sampling= | ||
<br> | <br> | ||
==Sampling spots== <br> | |||
<gallery> | |||
Datei:M1.jpg|M1 site - oligorheic stream tributary | |||
Datei:M1 M2 M3.jpg|M1, M2 and M3 - Confluence of Menne tributaries | |||
Datei:M4 2.jpg|M4 - Downstream oligorheic site | |||
Datei:M5.jpg|M5 - Hyporheic site downstream of Menne | |||
Datei:M6.jpg|M6 = M3b - Arheic site in the middling Menne | |||
</gallery> | |||
==Sampling spots== | |||
<br> | |||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
| Zeile 16: | Zeile 26: | ||
| M5 || 51.602579 N || 8.760392 E | | M5 || 51.602579 N || 8.760392 E | ||
|- | |- | ||
| M6 || 51.5909370 N || 8.7549049 E | | M6 = M3b || 51.5909370 N || 8.7549049 E | ||
|} <br> | |} <br> | ||
==Hydrology== | ==Hydrology== | ||
Hyperrheic: / <br> | Hyperrheic: / <br> | ||
Eurheic: / <br> | Eurheic: / <br> | ||
Oligorheic: M1, M2, M3 <br> | Oligorheic: M1, M2, M3 <br> | ||
Arheic: M4, M6 <br> | Arheic: M4, M6 = M3b <br> | ||
Hyprheic: M5 <br> | Hyprheic: M5 <br> | ||
==Physicochemical composition== | ==Physicochemical composition== | ||
| Zeile 41: | Zeile 51: | ||
| M5 || / || / || / || / || dry | | M5 || / || / || / || / || dry | ||
|- | |- | ||
| M6 || 0,02 || 0,54 || 8,22 || 13 || tadpoles | | M6 = M3b || 0,02 || 0,54 || 8,22 || 13 || tadpoles | ||
|} <br> | |} <br> | ||
| Zeile 52: | Zeile 62: | ||
! Sampling sites !! Dead [%] !! Alive [%] !! Resistant [%] !! Lipid increase !! Other algae !! Zoological !! Diatom species !! Comments | ! Sampling sites !! Dead [%] !! Alive [%] !! Resistant [%] !! Lipid increase !! Other algae !! Zoological !! Diatom species !! Comments | ||
|- | |- | ||
| M1 || 32.3 || 54.8 || 12.9 || / || / || Paramecia can have eaten most diatoms || / || Top down regulation? / Too little diatoms (n = 31) | | M1 || 32.3 || 54.8 || 12.9 || / || / || Paramecia can have eaten most diatoms and Salamander tadpoles || / || Top down regulation? / Too little diatoms (n = 31) | ||
|- | |- | ||
| M2 || 18.3 || 57.2 || 24.5 || 3.7 || / || / || ''Nitzschia acicularis'', ''Gomphonematal'' || Arbuscular diatoms | | M2 || 18.3 || 57.2 || 24.5 || 3.7 || / || / || ''Nitzschia acicularis'', ''Gomphonematal'' || Arbuscular diatoms | ||
| Zeile 62: | Zeile 72: | ||
| M5 || 27,1 || / || 72,9 || / || Cyanobacteria (Oscillatorials, Coccal) || Mycohyphae || / || / | | M5 || 27,1 || / || 72,9 || / || Cyanobacteria (Oscillatorials, Coccal) || Mycohyphae || / || / | ||
|- | |- | ||
| M6 || 8.1 || 73.9 || 18 || 11.9 || Cyanobacteria (Oscillatorials,...), Chlorophyta (Mougeotia) || | | M6 = M3b || 8.1 || 73.9 || 18 || 11.9 || Cyanobacteria (Oscillatorials,...), Chlorophyta (Mougeotia) || Tadpoles || ''Amphora pediculus'', '' Encyonema ventricosum'', ''Nitzschia microcephala'' || Teratologies | ||
|} | |} | ||
=Diatom composition= | =Diatom composition= | ||
[[Datei:Predominant species.png|Micro and slide scan]] | |||
[[Datei:Guilds.png|Comparison of guild distribution by method]] | |||
Aktuelle Version vom 12. März 2021, 11:44 Uhr
Sampling
M1 site - oligorheic stream tributary
M1, M2 and M3 - Confluence of Menne tributaries
M4 - Downstream oligorheic site
M5 - Hyporheic site downstream of Menne
M6 = M3b - Arheic site in the middling Menne
Sampling spots
| Sampling sites | Latitude | Longitude |
|---|---|---|
| M1 | 51.589308 N | 8.755923 E |
| M2 | 51.589975 N | 8.754721 E |
| M3 | 51.590694 N | 8.754786 E |
| M4 | 51.597248 N | 8.760392 E |
| M5 | 51.602579 N | 8.760392 E |
| M6 = M3b | 51.5909370 N | 8.7549049 E |
Hydrology
Hyperrheic: /
Eurheic: /
Oligorheic: M1, M2, M3
Arheic: M4, M6 = M3b
Hyprheic: M5
Physicochemical composition
| Sampling site | Q [l/s] |
Conductivity [mS/cm] |
pH | Temp [°C] |
Comments |
|---|---|---|---|---|---|
| M1 | 0,1 | 0,600 | 8,07 | 12,0 | humic, salamanders |
| M2 | 0,1 | 0,554 | 8,08 | 12,6 | fine sediment |
| M3 | 0,06 | 0,543 | 8,14 | 12,6 | small cobbles |
| M4 | 0,01 | 0,425 | 7,9 | 13 | wet, no apparent current |
| M5 | / | / | / | / | dry |
| M6 = M3b | 0,02 | 0,54 | 8,22 | 13 | tadpoles |
Diatom survival
Smaller + narrower diatoms dead, wider = resistant
| Sampling sites | Dead [%] | Alive [%] | Resistant [%] | Lipid increase | Other algae | Zoological | Diatom species | Comments |
|---|---|---|---|---|---|---|---|---|
| M1 | 32.3 | 54.8 | 12.9 | / | / | Paramecia can have eaten most diatoms and Salamander tadpoles | / | Top down regulation? / Too little diatoms (n = 31) |
| M2 | 18.3 | 57.2 | 24.5 | 3.7 | / | / | Nitzschia acicularis, Gomphonematal | Arbuscular diatoms |
| M3 | 16.7 | 69.6 | 13.7 | 3.5 | / | Rotifera & Paramecia | / | Teratologies |
| M4 | 14.7 | 69.8 | 15.5 | 1.6 | Chlorococcal, Euglena, Closterium, Synura | Paramecium | Rhoicosphenia abbreviata | / |
| M5 | 27,1 | / | 72,9 | / | Cyanobacteria (Oscillatorials, Coccal) | Mycohyphae | / | / |
| M6 = M3b | 8.1 | 73.9 | 18 | 11.9 | Cyanobacteria (Oscillatorials,...), Chlorophyta (Mougeotia) | Tadpoles | Amphora pediculus, Encyonema ventricosum, Nitzschia microcephala | Teratologies |
Diatom composition
