Biology (lake) Untere Donau
| Measurement site | Body of water | County |
|---|---|---|
Tiefste Stelle | Rachelsee | FRG |
Transekt 1 | Rachelsee | FRG |
Transekt 2 | Rachelsee | FRG |
Transekt 3 | Rachelsee | FRG |
Transekt 4 | Rachelsee | FRG |

| Measurement site | Body of water | County |
|---|---|---|
Tiefste Stelle | Rachelsee | FRG |
Transekt 1 | Rachelsee | FRG |
Transekt 2 | Rachelsee | FRG |
Transekt 3 | Rachelsee | FRG |
Transekt 4 | Rachelsee | FRG |