Special Issue "Ecohydraulics of Pool-Type Fishways"
Deadline for manuscript submissions: 31 December 2020.
Interests: Fishways; Ecohydraulics; Computational Fluid Dynamics (CFD); Acoustic Doppler Velocimetry (ADV); Particle Image Velocimetry (PIV); River connectivity; Hydraulics and Water resources; River restoration and management
Interests: River restoration and management; River connectivity; Ecohydraulics; Fishways; Fish migration; Fisheries management; Freshwater biology
Fishways are hydraulic structures that mitigate the negative effects of anthropogenic barriers in rivers by allowing fish to move upstream and downstream, thus restoring longitudinal connectivity.
Pool-type fishways are one of the oldest, most widespread types of fishway. They may present different configurations, from the alternate deep notch and submerged orifice design, which needs relatively low discharge to operate, to the vertical slot fishway, which is considered the best technical fishway type when multiple species are targeted, allowing fish to negotiate the slots at their desired depth. Recently, the concepts of double or multi-slot fishways, that reduces the discharge needed to operate, has been applied and developed.
In each of these fishway types, problems regarding attraction, passage, and maintenance are key aspects for the success of the fishway that still require extensive research, application, and monitoring.
Overall, the objective of a fishway is restoring connectivity. Therefore, pool-type fishways should desirably approach the holistic concept, allowing the fish community, or at least the key species, to overcome the barrier.
Recent developments of the methods, tools, and devices to assess fish passage behavior and to measure and simulate the hydrodynamic conditions downstream and along the fishway allow for new insights in the design of these ecohydraulic structures and motivate this Special Issue.
Prof. Dr. António Pinheiro
Dr. Ana L. Quaresma
Dr. Filipe Romão
Manuscript Submission Information
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- Pool-orifice-weir fishway
- Vertical slot fishway
- Multi-slot fishway
- CFD modelling