Planning of the fish lift and fish lift sluice
Planning of the fish lift and fish lift sluice
Where state-of-the-art solutions reach their limits, a special solution must be sought for fish passage. The fish lift or the fish lift lock based on the “der Wasserwirt” principle offers the possibility of implementing a fish ladder, even in confined spaces.
Areas of application and advantages of this special fish ladder:
- little need for space
- fluctuating topwater and underwater levels can be easily compensated for
- small power plant locations and MQ < 1,000 l/s
- good monitoring option via control maintenance in a very limited space
- construction costs
| fish region | authoritative fish species | recommended inner diameter of the shaft at heights between upstream and underwater up to 6 m | recommended inner diameter of the shaft at heights between headwater and underwater from 6 m | minimum water depth in the shaft (from the top edge of the perforated sheet) | entry opening and exit opening (except round version with pipeline into the headwater) WxH The slider cannot be opened 100% due to fish protection, so the opening height must be +10 cm when planning | strokes per hour |
|---|---|---|---|---|---|---|
| Epirhithral, average discharge <2m³/s | Brown trout 30 cm | 1,0 m | 2,0 m | 30 cm | 20x30 cm | 3 |
| Epirhithral, MQ >2m³/s | Brown trout 40 cm | 1,0 m | 2,0 m | 40 cm | 20x40 cm | 3 |
| Metarhithral, MQ<2m³/s | Brown trout 40 cm | 1,0 m | 2,0 m | 40 cm | 20x40 cm | 3 |
| Metarhithral, MQ >2m³/s | Gray, brown trout 50 cm | 1,5 m | 2,0 m | 50 cm | 30x50 cm | 3 |
| Hyporhithral klein, MQ <2m³/s | Gray, aitel, eel rod 50 cm | 1,5 m | 2 m | 50 cm | 30x50 cm | 3 |
| Hyporhithral groß, MQ >2m³/s with barb | Eel rod, barb 60 cm | 1,5 m | 2,0 m | 50 cm | 40x50 cm | 3 |
| Hyporhithral, MQ=2-20m³/s with danube salmon | Danube salmon 80 cm | 2,0 m | 2,0 m | 60 cm | 50x60 cm | 2 |
| Hyporhithral groß, MQ>20m³/s with danube salmon | Danube salmon 100 cm | 2,0 m | 2,0 m | 70 cm | 50x70 cm | 2 |
| Epipotamal mittel with barb | Barb 60 cm | 1,5 m | 2,0 m | 60 cm | 50x60 cm | 3 |
| Epipotamal middle with pike | Pike 90 cm | 2,0 m | 2,0 m | 70 cm | 50x40 cm | 2 |
| Epipotamal with danube salmon | Danube salmon 90 cm | 2,0 m | 2,0 m | 70 cm | 50x40 cm | 2 |
| Epipotamal big with danube salmon | Danube salmon 100 cm | 2,0 m | 2,0 m | 80 cm | 60x50 cm | 2 |
| Epipotamal big with mit catfish | Catfish 120 cm | 2,0 m | 2,0 m | 100 cm | 70x100 cm | 2 |
| river to or out of the lake | Lake trout 90 cm | 2,0 m | 2,0 m | 70 cm | 50x40 cm | 2 |
| Stream of gudgeon and stone loach | Aitel 40 cm | 2,0 m | 2,0 m | 50 cm | 30x50 cm | 2 |