Technical fish lock
First Claim
1. An arrangement for guiding fish between a first lower situated body of water and a second higher situated body of water, the arrangement comprising a housing comprising:
- a first opening and a second opening, wherein in use the second opening is situated higher than the first opening; and
a water guide which connects the first opening to the second opening for guiding a flow of water from the second opening through the first opening;
wherein the water guide in use provides a flow trajectory for the flow of water,the housing further comprising;
a base, andan inner housing part, wherein the flow trajectory is within the housing and exterior to inner housing part and at least part of the base define a basin configured for containing a volume of water having a reduced velocity relative to a velocity of water in the flow trajectory, andwherein the first opening provides an entrance configured to allow the fish into the basin.
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Accused Products
Abstract
Migrating fish often want to travel between different bodies of water, which may be positioned at different heights. To overcome these heights, water passages may be used that provide a water path at a slope over which a fish is able to swim up. A compact housing is provided by allowing a water guide over which the water flow flows to rotate around an axis parallel to gravity in a helical shape. The fish lock may be provided with a resting chamber which comprises a volume of water with a low flow velocity. Sensors and a controller may be provided to control a flow rate of the water through the fish lock according to for example the type of fish passing through the fish lock and an administrator may monitor the fish lock at a distance and may be contacted in case of malfunction.
7 Citations
21 Claims
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1. An arrangement for guiding fish between a first lower situated body of water and a second higher situated body of water, the arrangement comprising a housing comprising:
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a first opening and a second opening, wherein in use the second opening is situated higher than the first opening; and a water guide which connects the first opening to the second opening for guiding a flow of water from the second opening through the first opening; wherein the water guide in use provides a flow trajectory for the flow of water, the housing further comprising; a base, and an inner housing part, wherein the flow trajectory is within the housing and exterior to inner housing part and at least part of the base define a basin configured for containing a volume of water having a reduced velocity relative to a velocity of water in the flow trajectory, and wherein the first opening provides an entrance configured to allow the fish into the basin. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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11. An arrangement for guiding fish between a first lower situated body of water and a second higher situated body of water, the arrangement comprising a housing comprising:
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a first opening and a second opening, wherein in the use the second opening is situated higher than the first opening, and a water guide which connects the first opening to the second opening for guiding a flow of water from the second opening through the first opening; wherein the water guide in use provides a flow trajectory for the flow of water, and wherein the arrangement is provided with one or more sensors arranged to determine a species of the fish swimming through the first opening. - View Dependent Claims (12)
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Specification