Analysis of movements and behavior of smolts swimming in hydropower reservoirs

Arenas, Antonio; Politano, Marcela; Weber, Larry; Timko, Mark

doi:10.1016/j.ecolmodel.2015.05.015

Cited by 27 publications

(34 citation statements)

References 29 publications

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“…Visual observation clearly showed the reticence and hesitation of smolts when approaching the bypass, changing their body orientation in negative rheotaxy with retreat behaviour, during which the fish moved in and out of hydrodynamic areas just at the entrance of the bypass near the dropping point (Supplementary material 1). Other authors have also observed similar approaching behaviours for salmon smolts (Arenas et al , ; Enders et al , ; Kemp et al , and Kemp et al , ; Vowles et al , ). Enders et al () suggested that this is due to a proclivity to resist the flow vector as flow acceleration increases.…”

Section: Discussionsupporting

confidence: 60%

“…Most studies were performed later and essentially on migratory species, with efficiencies often lower than those of upstream fish‐ways (Calles et al , ). Knowledge on the performance of fish guidance to the entrance of the bypass and on the behaviour of different species to hydrodynamics conditions is poor (Arenas et al , ), and field studies are less frequent than laboratory approaches. Due to the imperative need to migrate from river to sea during their life cycle, diadromous fish species such as juvenile salmon smolts ( Salmo salar ) and adult silver eel ( Anguilla anguilla ) are interesting biological models for studies on downstream bypass (Calles and Greenberg, ; Coutant and Whitney ; Ferguson et al , ; Kraabol et al , ; Larinier, ; Scruton et al , ).…”

Section: Introductionmentioning

confidence: 99%

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Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System

Ovidio

Dierckx

Bunel

et al. 2016

River Research & Apps

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The implementation of fish downstream migration bypass systems is still a major challenge, and there is interest in validating the adequacy of different configurations of bypass devices. In the Amblève River (Belgium), a mobile 3.3-m height dam feeds two principal Francis and one Francis micro-turbine and is equipped with a modern vertical slot fish pass and a downstream bypass. The aim of this study was to test the bypass attraction and efficiency (i.e. percentage of fish that approach the entrance and use the bypass) for Atlantic salmon smolts. During three consecutive years, a total of 1346 smolts were equipped with a radio frequency identification tag and released from March to May upstream of the dam of Lorcé. The entrance of the downstream migration bypass was equipped with a radio frequency identification antenna in order to detect the smolts approaching. In 2014, a capture cage was also placed downstream the bypass to evaluate its efficiency. The mean percentage of detected smolts at the entrance varied from 26.2 to 39.7%. In 2014, 16.5% of the released smolts entered the bypass and were finally caught in the cage, representing 39% of the smolts detected at the entrance. More than 98% of the detections occurred during night (mainly between 9 PM and 3 AM). The searching delay near the bypass entrance varied from less than 5 min to more than 5 days (median 4.3 min). Visual observation indicated a behavioural reluctance before entering the bypass, with a shift from positive to negative rheotaxy. Our results underline the difficulty to install retrofitted bypass system on old existing hydropower plants.

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Section: Discussionsupporting

confidence: 60%

Section: Introductionmentioning

confidence: 99%

Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System

Ovidio

Dierckx

Bunel

et al. 2016

River Research & Apps

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show abstract

“…Transfer of such knowledge from controlled experiments to field‐based fish passage conditions would allow for better understanding and verification and thus has the potential to translate into increased effectiveness in practical applications. Controlled laboratory experiments (Haro, Odeh, Noreika, & Castro‐Santos, ) that are run concurrently with field‐based studies over several years (Arenas, Politano, Weber, & Timko, ; Goodwin, Nestler, Anderson, Weber, & Loucks, ) may be one of the best ways to fill these major knowledge gaps.…”

Section: Shifting the Paradigm In Fishway Engineeringmentioning

confidence: 99%

“…Understanding of the fine-scale relationships between turbulent hydraulic environments, sensory function, biomechanics, and individual and schooling animal behaviour in the air-entrained, turbulent and often turbid environments that characterize many fishways is crucial to elicit fish responses which improve attraction/approach entry and passage for multiple species (Keefer et al, 2011 (Haro, Odeh, Noreika, & Castro-Santos, 1998) that are run concurrently with fieldbased studies over several years (Arenas, Politano, Weber, & Timko, 2015;Goodwin, Nestler, Anderson, Weber, & Loucks, 2006) may be one of the best ways to fill these major knowledge gaps.…”

Section: Shifting the Paradigm In Fishway Engineeringmentioning

confidence: 99%

The future of fish passage science, engineering, and practice

et al. 2017

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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 efficientThis is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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“…A variety of numerical simulation methods have been applied to understand fish movement processes [14][15][16]. These models simulate fish movement in relation to physical parameters (growth, population dynamic, patterns, etc.)…”

Section: Introductionmentioning

confidence: 99%

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

Tan

Lin

Gao

et al. 2018

Water

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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.2 of 16 etc.). However, these models do not incorporate individual fish movement behavior with hydraulic parameters. The main challenge in modeling fish movement is linking these parameters. The hydraulic information of the fishway is regarded as a stimulus, which is the Eulerian framework, while the response of a fish to a stimulus is an individual-based framework, which can add individuals' behavior and track their movement. One advantage of the individual-based framework is its relevance to internal states, such as environmental conditions or individual heterogeneity [17][18][19][20]. Therefore, an individual-based model (IBM) approach can be applied to model fish movement trajectories in the fishway. Goodwin et al. (2006) [21] developed a model called ELAM (Eulerian-Lagrangian-agent method) using an IBM approach to model fish movement paths at a hydropower dam forebay. Later, Gao et al. (2016) [12] established an Eulerian-Lagrange fish movement model of a fishway. However, the model only considered turbulent kinetic energy (TKE) as a hydraulic stimulus factor. Validation and calibration of a model principally depends on experimental data. Therefore, it is important to consider a more refined model.Before using the IBM approach, one theory was based on the assumption that the response of fish in the experimental fishway was the same [12]. That means the physiological indices were constant, even then the physiological indices may change after a response has been made. If so, the above assumption implied that a fish swam with similar/ average velocity in all the pools in the model.Black carp (Mylopharyngodon piceus), grass carp (Ctenopharyngodon idella), silver carp (Hypophthalmichthys molitrix) and bighead carp (Hypophthalmichthys nobilis), herein called Asian carps, are the most commercially important freshwater fish species in China, especially in the Yangtze River basin. Asian carps are typical potamodromous fish and have typical migratory activities in spawning and nursery periods [8]. Most research has focused on the swimming performance of carps [8], and little is known about how the fish respond to hydraulic stimulus variables in fishways. The commonly used hydraulic parameters include flow velocity and turbulence [22,23]. It has been well recognized that the slots of fishways change the spatial distribution of th...

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Analysis of movements and behavior of smolts swimming in hydropower reservoirs

Cited by 27 publications

References 29 publications

Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System

Poor Performance of a Retrofitted Downstream Bypass Revealed by the Analysis of Approaching Behaviour in Combination with a Trapping System

The future of fish passage science, engineering, and practice

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

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