Fish lift - Homoet, NL
Posted by: Groundspeak Premium Member PetjeOp
N 51° 55.832 E 005° 49.667
31U E 694410 N 5757089
Quick Description: From small polder fish to carp and pike: they will be able to migrate through a large part of the Linge without any hindrance. The self-thinking fish passage recognizes every fish that comes to swim and sets the ideal flow rate for this. Every fi
Location: Gelderland, Netherlands
Date Posted: 1/23/2022 10:07:33 AM
Waymark Code: WM15MW1
Published By: Groundspeak Premium Member elyob
Views: 4

Long Description:
'Fishlift offers the possibility of effective fish migration. With our solutions, every fish species can migrate according to its own wishes. From small to large. The (patented) regulation inside the Vislift makes this possible. The data proves this: 24/7 fish migration data, linked to 24/7 water quality data.

Our customers have insight into and access to migration and water quality data 365 days a year. Fishlift installations in the customer's area can be incorporated into the portal and provide insight into various migration and water quality parameters. The installation can be managed remotely via the Vislift Portal. Alarms and (fresh) water saving functions can also be set.

Vislift unburdens its customers. This means that we can take care of the complete road and hydraulic installation. We measure the environment in and with GPS-controlled equipment on the basis of 3D scanning. Thanks to our modular and prefab design, the installation is operational within 48 hours and the migration bottleneck has been eliminated.'

(visit link)

'The Fish Lift
The primary function of the Smart Fishlift is to facilitate fish migration. The design is based on proven insights, but has a more favorable flow thanks to the flow control and round shape. The Vislift also generates relevant data about passing fish and water parameters.

Proven effective for all fish species
Based on real-time data, it can be shown that the Vislift is effective for all fish species.

24/7 real-time data on fish and water
The built-in sensors monitor passing fish for quantity and species and the water for height, quality (oxygen, pH, conductivity and temperature), flow rate, pollution and blockages. This gives ecologists, water and water level managers more insight into fish migration.

Automatic water control
Different fish species migrate at different periods under different conditions, of which the flow rate is the main control parameter. The Vislift has a variable flow technique that automatically adjusts the flow speed in the fish passage exactly to the migrating fish species and season.

The Vislift is self-cleaning: the device is periodically rinsed. The built-in sensor also detects blockages. When self-cleaning is insufficient, this is recognized and communicated to the user.

Plug and play in 48 hours
Due to its patented, round shape, the Vislift is compact, structurally strong and can be used almost anywhere. Soil research and construction calculations are less relevant. This makes the installation of the Vislift many times more efficient and faster than traditional solutions. The Vislift can be installed and relocated at any location within 48 hours.

Also for bosom migration
The fish pass can be used everywhere; also in places with little space and even for bosom migration with the Vislift Up.'

(visit link)

Operation of the Fishlift
The Vislift is designed to facilitate fish migration where a barrier between two water levels blocks the swimming route.

Fish that swim into the swimming tube thanks to the adjusted flow rate, reach the large resting chamber where they can get used to the environment. From the rest room, the fish swim upwards via round basins as if via a 'wokkel', and out via a swim-out house.

Vislift has opted for the round shape of our, now patented, fish pass, partly based on insights from aquatic ecologists, water managers and TU Delft: the clothoid helix. A spiral. In this way there is no strong reflection of impulses from the sides and fish imagine themselves in a natural environment.'

(visit link)
River/Waterway: Linge

Visit Instructions:
Please share a self-made picture of the Fish Ladder and tell us something about it. Did you see any fishes? You do not have to be in the picture, neither does your GPSr.
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