Low light inhibits native fish movement through a vertical-slot fishway: Implications for engineering design

2017 ◽  
Vol 24 (3) ◽  
pp. 177-185 ◽  
Author(s):  
M. J. Jones ◽  
L. J. Baumgartner ◽  
B. P. Zampatti ◽  
K. Beyer
Keyword(s):  
Engineering Design ◽  
Native Fish ◽  
Fish Movement ◽  
Low Light ◽  
Vertical Slot ◽  
Vertical Slot Fishway

scholarly journals Modeling Fish Movement Trajectories in Relation to Hydraulic Response Relationships in an Experimental Fishway

Water ◽  
2018 ◽  
Vol 10 (11) ◽  
pp. 1511 ◽  
Author(s):  
Junjun Tan ◽  
Lin Tao ◽  
Zhu Gao ◽  
Huichao Dai ◽  
Xiaotao Shi
Keyword(s):  
Silver Carp ◽  
Fish Movement ◽  
Hypophthalmichthys Molitrix ◽  
Movement Trajectories ◽  
Individual Fish ◽  
Vertical Slot ◽  
Target Fish ◽  
Vertical Slot Fishway ◽  
Movement Rules ◽  
Model Fish

This study developed an IBM (individual-based model) to model fish movement trajectories integrating hydraulic stimulus variables (turbulent kinetic energy (TKE), velocity (V) and strain rate (SR)) to which fish responded, and the rules for individual fish movement. The fish movement trajectories of the target fish, silver carp (Hypophthalmichthys molitrix), were applied to model fish trajectories in a 1% vertical slot fishway at a discharge of 13.5 L/s. Agreement between measured and simulated trajectories implied the plausibility of the movement rules, which illustrated that the fish movement trajectories model has the preliminary ability to track individual fish trajectories for this fishway.

Can a low-gradient vertical-slot fishway provide passage for a lowland river fish community?

2008 ◽  
Vol 59 (4) ◽  
pp. 332 ◽  
Author(s):  
Ivor G. Stuart ◽  
Brenton P. Zampatti ◽  
Lee J. Baumgartner
Keyword(s):  
Fish Community ◽  
Performance Criteria ◽  
Native Fish ◽  
Regulated Rivers ◽  
Pit Tag ◽  
Vertical Slot ◽  
Murray Darling Basin ◽  
Vertical Slot Fishway ◽  
Reading System ◽  
River Fish

Fishways are commonly used to restore native fish movements in regulated rivers. In the Murray-Darling Basin, Australia, 14 fishways are to be built by 2011 to improve passage along 2225 km of the river. The first of these fishways, constructed in 2003, is a vertical-slot design with low water velocities (0.98–1.4 m s–1) and turbulence (average 42 W m–3). This design was selected to provide passage for individuals between 20 and 1000 mm long. To determine passage success, trapping and a remote automated passive integrated transponder (PIT) tag reading system was used from October 2003 to February 2006. In 57 24-h samples at the exit (upstream end) and entrance (downstream end), 13 species and 30 409 fish were collected at a maximum rate of 4415 fish per day. Fish between 31 and 1030 mm successfully ascended the fishway. However, significantly smaller (<31 mm) fish and small-bodied (<50 mm) carp gudgeons (Hypseleotris spp.), a species previously considered non-migratory, were sampled downstream from the entrance of the fishway. The remote PIT tag reading system revealed that 81% of native golden perch (Macquaria ambigua) and 87% of non-native common carp (Cyprinus carpio) successfully ascended the fishway. These data will help maximise the efficiency of future fishways against a series of pre-determined performance criteria.

Analysis of fishways in the Middle and Lower Jinsha River Basin (China)

2021 ◽  
Author(s):  
Siqi Tong ◽  
Silke Wieprecht ◽  
Martin Schletterer
Keyword(s):  
River Basin ◽  
Jinsha River ◽  
Vertical Slot ◽  
Upper Yangtze River ◽  
Artificial Breeding ◽  
Longitudinal Connectivity ◽  
Target Fish ◽  
Regional Sustainable Development ◽  
Vertical Slot Fishway ◽  
Hydropower Stations

&lt;p&gt;This study was carried out in the middle and lower reaches of the Jinsha River in southwest China, which represents the upper Yangtze River. Hydraulic structures (14 cascade hydropower stations) are planned and/or constructed in this system, which is considered as largest hydropower base. We aim to summarize appropriate measures to restore the riverine continuum in the middle and lower reaches of the Jinsha River, where high-head cascade hydropower dams are located or planned.&lt;/p&gt;&lt;p&gt;We distributed a questionnaire to Chinese researchers in the related fields (scientists, hydropower operators and NGOs in China, n = 60). According to the responses, fishways, fish lift, fish lock, trap-and-truck system as well as fish hatcheries (artificial breeding) are recognized to ensure passing respectively preserving fish in the Jinsha River basin.&lt;/p&gt;&lt;p&gt;A longitudinal connectivity assessment of the study area revealed a severely disturbed continuity status. Based on the biological analyses of the demands of the target fish species and review of fish pass technologies, a vertical-slot fishway is proposed.&lt;/p&gt;&lt;p&gt;Considering the dam heights and the geographical conditions, it is recommended to combine the vertical-slot fishway with these alternatives to achieve a higher efficiency in passing fish as well as to recover the river continuity towards regional sustainable development.&lt;/p&gt;

scholarly journals A new Eulerian–Lagrangian agent method to model fish paths in a vertical slot fishway

2016 ◽  
Vol 88 ◽  
pp. 217-225 ◽  
Author(s):  
Zhu Gao ◽  
Helge I. Andersson ◽  
Huichao Dai ◽  
Fengjian Jiang ◽  
Lihao Zhao
Keyword(s):  
Vertical Slot ◽  
Vertical Slot Fishway ◽  
Model Fish

DO THE FISH LIKE THE FLOW PATTERN IN THE VERTICAL SLOT FISHWAY?

2019 ◽  
Author(s):  
GUANGNING LI ◽  
SHUANGKE SUN ◽  
HAITAO LIU ◽  
TIEGANG ZHENG
Keyword(s):  
Flow Pattern ◽  
Vertical Slot ◽  
Vertical Slot Fishway

scholarly journals A Numerical Study of Fluid Flow in a Vertical Slot Fishway with the Smoothed Particle Hydrodynamics Method

Water ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1928 ◽  
Author(s):  
Gorazd Novak ◽  
Angelantonio Tafuni ◽  
José M. Domínguez ◽  
Matjaž Četina ◽  
Dušan Žagar
Keyword(s):  
Smoothed Particle Hydrodynamics ◽  
Numerical Study ◽  
Free Surface Flows ◽  
Open Boundary ◽  
Doppler Velocity ◽  
Vertical Slot ◽  
Particle Hydrodynamics ◽  
Smoothed Particle ◽  
Smoothed Particle Hydrodynamics Method ◽  
Vertical Slot Fishway

Fishways have a great ecological importance as they help mitigate the interruptions of fish migration routes. In the present work, the novel DualSPHysics v4.4 solver, based on the smoothed particle hydrodynamics method (SPH), has been applied to perform three-dimensional (3-D) simulations of water flow in a vertical slot fishway (VSF). The model has been successfully calibrated against published field data of flow velocities that were measured with acoustic Doppler velocity probes. A state-of-the-art algorithm for the treatment of open boundary conditions using buffer layers has been applied to accurately reproduce discharges, water elevations, and average velocity profiles (longitudinal and transverse velocities) within the observed pool of the VSF. Results herein indicate that DualSPHysics can be an accurate tool for modeling turbulent subcritical free surface flows similar to those that occur in VSF. A novel relation between the number of fluid particles and the artificial viscosity coefficient has been formulated with a simple logarithmic fit.

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