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The future of fish passage science, engineering, and practice

The future of fish passage science, engineering, and practice

Category
Journal publication
Abstract
Much effort has been devoted to developing, constructing and refining fish passage facilities to enable target species to pass barriers on fluvial systems, and yet, fishway science, engineering and practice remain imperfect. In this review, 17 experts from different fish passage research fields (i.e., biology, ecology, physiology, ecohydraulics, engineering) and from different continents (i.e., North and South America, Europe, Africa, Australia) identified knowledge gaps and provided a roadmap for research priorities and technical developments. Once dominated by an engineering-focused approach, fishway science today involves a wide range of disciplines from fish behaviour to socioeconomics to complex modelling of passage prioritization options in river networks. River barrier impacts on fish migration and dispersal are currently better understood than historically, but basic ecological knowledge underpinning the need for effective fish passage in many regions of the world, including in biodiversity hotspots (e.g., equatorial Africa, South-East Asia), remains largely unknown. Designing efficient ishways, with minimal passage delay and post-passage impacts, requires adaptive management and continued innovation. While the use of fishways in river restoration demands a transition towards fish passage at the community scale, advances in selective fishways are also needed to manage invasive fish colonization. Because of the erroneous view in some literature and communities of practice that fish passage is largely a proven technology, improved international collaboration, information sharing, method standardization and multidisciplinary training are needed. Further development of regional expertise is needed in South America, Asia and Africa where hydropower dams are currently being planned and constructed. dams, ecohydraulics, fish conservation, fish migration, fishway, standardization
Client
  • EU / EU Amber 689682
  • Andre / Natural Sciences and Engineering Research Council of Canada
  • Norges forskningsråd / 244022
Language
English
Author(s)
  • Silva Ana T.
  • Lucas Martyn C.
  • Castro-Santos Theodore
  • Katopodis Christos
  • Baumgartner Lee J.
  • Thiem Jason D.
  • Aarestrup Kim
  • Pompeu Paulo S.
  • O'Brien Gordon C.O.
  • Braun Douglas C.
  • Burnett Nicholas J.
  • Zhu David Z.
  • Fjeldstad Hans-Petter
  • Forseth Torbjørn
  • Rajaratnam Nallamuthu
  • Williams John G.
  • Cooke Steven J.
Affiliation
  • Norwegian Institute for Nature Research
  • Canada
  • University of Durham
  • SINTEF Energy Research / Energisystemer
Year
2018
Published in
Fish and Fisheries
ISSN
1467-2960
Publisher
Wiley-Blackwell Publishing, Inc.
Volume
19
Issue
2
Page(s)
340 - 362