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WO2007011274A1 - Dispositif pour poissons migrateurs - Google Patents

Dispositif pour poissons migrateurs Download PDF

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Publication number
WO2007011274A1
WO2007011274A1 PCT/SE2005/001176 SE2005001176W WO2007011274A1 WO 2007011274 A1 WO2007011274 A1 WO 2007011274A1 SE 2005001176 W SE2005001176 W SE 2005001176W WO 2007011274 A1 WO2007011274 A1 WO 2007011274A1
Authority
WO
WIPO (PCT)
Prior art keywords
fish
outlet
point
sectional area
cross
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/SE2005/001176
Other languages
English (en)
Inventor
Jan-Erik Almqvist
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vagverket
Original Assignee
Vagverket
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vagverket filed Critical Vagverket
Priority to PCT/SE2005/001176 priority Critical patent/WO2007011274A1/fr
Publication of WO2007011274A1 publication Critical patent/WO2007011274A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/08—Fish passes or other means providing for migration of fish; Passages for rafts or boats
    • E02B8/085—Devices allowing fish migration, e.g. fish traps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/60—Ecological corridors or buffer zones

Definitions

  • the invention relates to a device for fish migration from a low-lying point, for instance a watercourse, to a high-lying point, for instance a road culvert.
  • a prior solution to this problem is to install a fish ladder.
  • the fish ladder consists of a number of small dams with a small difference of height so that the fish can swim/ jump from dam to dam, see for instance US 2003/0133754.
  • the drawback of this solution is that the fish ladder will be relatively long and require a large surface around the watercourse, which is not always available.
  • a fish ladder is expensive to install.
  • Other known solutions involve the use of some kind of system of locks where the flow is controlled by gates which are closed and opened for the fish. However, such systems require power supply and regular surveillance to work in a satisfactory manner.
  • the invention solves the above problem by a device for fish migration according to the independent claim.
  • Fig. 1 shows the invention arranged for a road culvert.
  • Fig. 2 shows the invention seen from downstream.
  • Fig. 3 is a front view of the pipe and the connection part.
  • Fig. 1 shows a device for fish migration according to the invention.
  • the device (1) helps the.fish (4) to bridge a difference in altitude (N) between a lower point, for instance a watercourse (2) where the fish are positioned, and an upper point, for instance a road culvert (3).
  • the device creates a waterway between the lower point, the watercourse (2), and the upper point, the road culvert (3).
  • the waterway through the device (1) is in use filled with water.
  • the device comprises an inlet (12) for the water flow at the upper point and an outlet (11) at the lower point (2).
  • the velocity of the water flow in the device varies, inter alia depending on the area of the cross- section where the water passes. The device is adjusted so that the velocity of the water flow is at its maximum over a short distance.
  • the invention concerns a device with a waterway that utilises this fact. By letting a short distance of the waterway through the device have a smaller cross- sectional area than the rest of the device, the flow velocity will be at its maximum over this short distance. The cross-sectional area and the length of the distance are adjusted to allow the fish swimming in the watercourse to manage swimming through.
  • An embodiment of the invention is to let the highest velocity occur at the outlet, which is the point where the fish enter the device.
  • the outlet is made to correspond to a short distance and the cross-sectional area is adjusted so that the fish manage the higher velocity.
  • the cross-sectional area is increased and the velocity of the water flow is reduced.
  • the cross-sectional area increases to a relatively great extent so that the flow velocity decreases to a great extent and the fish thus can rest.
  • the outlet has the smallest cross-sectional area in the device where the water passes, the velocity of the water flow is at its maximum and then proportional to the cross-sectional area of the outlet. The velocity of the water flow also depends on the height of fall between the upper and the lower point.
  • the device comprises a container (10) arranged in the watercourse (2).
  • the container (10) has an outlet (11) where the fish enter.
  • the outlet is arranged under the water level in the watercourse (2).
  • the container is also connected to a pipe (13) arranged between the container (10) and a connection part (14) connecting to the road culvert (3).
  • connection part (14) has a collar (15) which is slipped onto the pipe (13) and a connection device (16) for the road culvert (3), thus allowing the connection part (14) to be detachable.
  • the connection part is removed and water can flow freely through the road culvert in the next spring flood. After the spring flood, the connection part is mounted again in time for the start of the fish migration season.
  • the connection part (14) comprises the inlet (12) and parts (18, 19) which dam up the water in the road culvert (3).
  • the inlet (12) suitably has an area corresponding to the area of the pipe.
  • the parts (18, 19) ensure that the inlet is covered with water and, thus, the device is filled with water. If the water flow should be so great that the water does not manage to flow into the inlet (12), the excess water flows over the edge (20) and continues outside the device down to the watercourse (2).
  • the device (1) works in such a manner that the fish (4) enter the container (10) through the outlet (11).
  • the fish start upstream through the pipe (13).
  • the inclination and diameter of the pipe and the outlet (11) are adjusted so that the water flow is not greater than to allow the fish to swim through.
  • Different species of fish manage water flowing at different velocities, and therefore the device is suitably adjusted to the species which migrates/migrate in the watercourse.
  • a suitable diameter of the pipe is in most cases between 20 and 40 cm, which with a suitable inclination of the pipe results in a flow velocity of 1-2 m/s.
  • the container (10) also has a lid (17) to facilitate cleaning of the container.
  • the container (10) and the pipe are suitably arranged permanently in the watercourse, and only the connection part (14) is mounted and dismounted.
  • the entire device (1) can be mobile.
  • a device according to the invention could be dimensioned, for instance, for a maximum flow velocity of 4 m/s, a velocity that many migrating fish manage over a short distance.
  • the outlet should suitably be a hole with a diameter of about 15 cm for the velocity to be 4 m/s.
  • the invention concerns a device which because of its design allows the fish to migrate upstream, without any movable parts and control systems being necessary.
  • the invention comprises a waterway which has a varying cross-sectional area.
  • the device is preferably dimensioned so that the cross- sectional area is at its minimum in the outlet. The flow velocity through the device will thus be at its maximum in the outlet.
  • the high flow velocity occurs, however, only over a short distance before the fish enter a part having a greater cross-sectional area and, thus, a lower flow velocity and allowing the fish to rest.
  • the device can also be supplemented with a lid at the outlet (11).
  • This in combination with the cross-sectional area of the outlet (12) being made smaller than the outlet (11), results in the velocity of the water flow being at its maximum in the inlet (12).
  • the fish have no difficulties in entering the outlet (11) where a sensor detects the fish and closes the lid and prevents water from leaving the container.
  • the water flow through the inlet (12) continues and fills the entire device with water so that the fish can swim upstream to the road culvert.
  • a sensor detects this and opens the lid at the outlet (11). This solution allows the fish to manage relatively great differences in altitude.
  • the device makes it possible, in an inexpensive and space-saving manner, without requiring electricity, for migrating fish to manage differences in altitude. This is due to the fact that the device creates a water-filled way with a flow velocity between the altitudes, which is possible for the fish to manage.
  • the device is shown between a watercourse and a road culvert, but it can also be used between other types of differences in altitude, such as embankments, power stations, reservoirs and temporary obstacles on building sites.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Farming Of Fish And Shellfish (AREA)

Abstract

La présente invention concerne un dispositif pour la migration des poissons à partir d’un point à basse altitude, par exemple un cours d’eau (2), vers un point à haute altitude, par exemple un passage sous chaussée (3). Le dispositif fournit une voie navigable entre le point le plus bas (2) et le point le plus haut (3), avec un orifice d’entrée (12) au niveau du point le plus haut et un orifice de sortie (11) au niveau du point le plus bas (2). Le débit d’eau dans le dispositif a sa vélocité maximale au niveau de l’orifice de sortie (11) ou de l’orifice d’entrée (11) et il est ajusté pour permettre aux poissons (4) d’entrer, c’est-à-dire que la section transversale de l’orifice de sortie (11) est ajustée de sorte que le débit d’eau à travers l’orifice de sortie n’est pas supérieure à pour permettre aux poissons d’entrer. Le dispositif comprend un conteneur (10) ayant un orifice de sortie (11) et étant disposé au niveau du point le plus bas (2) et un conduit (13) disposé entre le conteneur (10) et un élément de raccordement (14) raccordant au point le plus haut (3).
PCT/SE2005/001176 2005-07-22 2005-07-22 Dispositif pour poissons migrateurs Ceased WO2007011274A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/SE2005/001176 WO2007011274A1 (fr) 2005-07-22 2005-07-22 Dispositif pour poissons migrateurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2005/001176 WO2007011274A1 (fr) 2005-07-22 2005-07-22 Dispositif pour poissons migrateurs

Publications (1)

Publication Number Publication Date
WO2007011274A1 true WO2007011274A1 (fr) 2007-01-25

Family

ID=37669069

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2005/001176 Ceased WO2007011274A1 (fr) 2005-07-22 2005-07-22 Dispositif pour poissons migrateurs

Country Status (1)

Country Link
WO (1) WO2007011274A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106759165A (zh) * 2016-12-27 2017-05-31 珠江水利委员会珠江水利科学研究院 具有恒定进口流速的鱼道
CN107200195A (zh) * 2017-06-17 2017-09-26 徐秀娥 一种便于鱼类跨越水坝洄游的自动输送机
CN109853493A (zh) * 2019-03-28 2019-06-07 中水珠江规划勘测设计有限公司 泵阀管道式过鱼方法
US11193250B2 (en) * 2016-04-29 2021-12-07 Kalasydän Oy Migratory fish passage arrangement
CN113322907B (zh) * 2021-06-29 2022-05-13 中国电建集团贵阳勘测设计研究院有限公司 一种上下游连通的排水掺气系统
US20230358007A1 (en) * 2020-09-30 2023-11-09 Peirson Harris Felder Pty. Limited Fish transfer system and method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE37583C (de) * E. Müller , Landes-Bauinspektor in Erfurt, Löber Strafse 7. Fischwege mit von der Gefällhöhe unabhängiger Wassergeschwindigkeit
SU1465483A2 (ru) * 1987-07-27 1989-03-15 Калининский политехнический институт Устройство дл спуска молоди рыб через плотину
FR2736949A1 (fr) * 1995-07-17 1997-01-24 Berthelon Bernard Joseph Tunnel a poissons
US5947640A (en) * 1997-07-31 1999-09-07 Connors; James P Portable water conveyance assembly
DE10003761A1 (de) * 2000-01-28 2001-08-02 Fritz Reuter Bypass für Fische an Kraftwerken

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE37583C (de) * E. Müller , Landes-Bauinspektor in Erfurt, Löber Strafse 7. Fischwege mit von der Gefällhöhe unabhängiger Wassergeschwindigkeit
SU1465483A2 (ru) * 1987-07-27 1989-03-15 Калининский политехнический институт Устройство дл спуска молоди рыб через плотину
FR2736949A1 (fr) * 1995-07-17 1997-01-24 Berthelon Bernard Joseph Tunnel a poissons
US5947640A (en) * 1997-07-31 1999-09-07 Connors; James P Portable water conveyance assembly
DE10003761A1 (de) * 2000-01-28 2001-08-02 Fritz Reuter Bypass für Fische an Kraftwerken

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 198951, Derwent World Patents Index; Class Q42, AN 1989-376846, XP003007526 *

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11193250B2 (en) * 2016-04-29 2021-12-07 Kalasydän Oy Migratory fish passage arrangement
CN106759165A (zh) * 2016-12-27 2017-05-31 珠江水利委员会珠江水利科学研究院 具有恒定进口流速的鱼道
CN107200195A (zh) * 2017-06-17 2017-09-26 徐秀娥 一种便于鱼类跨越水坝洄游的自动输送机
CN109853493A (zh) * 2019-03-28 2019-06-07 中水珠江规划勘测设计有限公司 泵阀管道式过鱼方法
US20230358007A1 (en) * 2020-09-30 2023-11-09 Peirson Harris Felder Pty. Limited Fish transfer system and method
CN113322907B (zh) * 2021-06-29 2022-05-13 中国电建集团贵阳勘测设计研究院有限公司 一种上下游连通的排水掺气系统

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