FR490190A - Échelle à poissons - Google Patents

Échelle à poissons

Info

Publication number
FR490190A
FR490190A FR490190A FR490190DA FR490190A FR 490190 A FR490190 A FR 490190A FR 490190 A FR490190 A FR 490190A FR 490190D A FR490190D A FR 490190DA FR 490190 A FR490190 A FR 490190A
Authority
FR
France
Prior art keywords
fish ladder
ladder
fish
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.)
Expired
Application number
FR490190A
Other languages
English (en)
Inventor
Gottlieb Luescher
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR490190A publication Critical patent/FR490190A/fr
Expired 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

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)
FR490190A 1917-12-26 1918-05-21 Échelle à poissons Expired FR490190A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH490190X 1917-12-26

Publications (1)

Publication Number Publication Date
FR490190A true FR490190A (fr) 1919-04-05

Family

ID=1526354

Family Applications (1)

Application Number Title Priority Date Filing Date
FR490190A Expired FR490190A (fr) 1917-12-26 1918-05-21 Échelle à poissons

Country Status (1)

Country Link
FR (1) FR490190A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978873A (en) * 1958-10-20 1961-04-11 Northwest Power Ind Ltd Fishway structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2978873A (en) * 1958-10-20 1961-04-11 Northwest Power Ind Ltd Fishway structure

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