Field test of a bubble curtain deterrent system for common carp

Zielinski, Daniel; Sorensen, Peter W.

doi:10.1111/fme.12108

Cited by 26 publications

(20 citation statements)

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“…In particular, we found that when air flow and bubble size are optimized for sound production, bubble curtains can reduce passage of juvenile Common Carp by 75-80% in the laboratory and block up to 60% of downstream swimming juveniles in the field, when used in a cross-stream configuration (i.e., full width barrier placed perpendicular to flow) (Zielinski et al 2014;Zielinski and Sorensen 2015). In some situations, this level of deterrence will likely be useful for management, especially given its low cost (about US$1,250/m of bubble curtain [see Zielinski and Sorensen 2015]). Our laboratory studies suggest that the sound produced by bubble plumes is primarily responsible for deterring Common Carp passage because the sound produced overlaps the range of sounds this species hears and bubble curtain efficacy is not hindered by low levels of ambient light (Zielinski et al 2014).…”

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confidence: 86%

“…We have already shown that bubble curtains alone are an effective deterrent for Common Carp (Zielinski et al 2014;Zielinski and Sorensen 2015). In particular, we found that when air flow and bubble size are optimized for sound production, bubble curtains can reduce passage of juvenile Common Carp by 75-80% in the laboratory and block up to 60% of downstream swimming juveniles in the field, when used in a cross-stream configuration (i.e., full width barrier placed perpendicular to flow) (Zielinski et al 2014;Zielinski and Sorensen 2015). In some situations, this level of deterrence will likely be useful for management, especially given its low cost (about US$1,250/m of bubble curtain [see Zielinski and Sorensen 2015]).…”

mentioning

confidence: 99%

“…This is so because bubble curtains are inexpensive to install and maintain (they can be easily laid on the river bottom unlike speakers), are safe, and produce a broad spectrum of sound (Zielinski et al 2014). We have already shown that bubble curtains alone are an effective deterrent for Common Carp (Zielinski et al 2014;Zielinski and Sorensen 2015). In particular, we found that when air flow and bubble size are optimized for sound production, bubble curtains can reduce passage of juvenile Common Carp by 75-80% in the laboratory and block up to 60% of downstream swimming juveniles in the field, when used in a cross-stream configuration (i.e., full width barrier placed perpendicular to flow) (Zielinski et al 2014;Zielinski and Sorensen 2015).…”

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confidence: 99%

“…Acoustic deterrents appear to have particular promise because they are safe and Asian carp, as well as the Common Carp Cyprinus carpio, have specialized hearing abilities (Popper 1972;Lovell et al 2006). Sound has already been successfully field tested for Common Carp (Zielinski and Sorensen 2015).…”

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confidence: 99%

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Bubble Curtain Deflection Screen Diverts the Movement of both Asian and Common Carp

Zielinski

Sorensen

2016

N American J Fish Manag

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Bubble curtains are a relatively simple type of behavioral deterrent that produces acoustic and hydrodynamic fields that could serve as a management tool to reduce movement of Asian carp species in many locations. In a proof‐of‐concept laboratory study, we tested whether two Asian carp species, the Silver Carp Hypopthalmichthys molitrix and the Bighead Carp H. nobilis, will avoid bubble curtains, and to the same extent as the Common Carp Cyprinus carpio, which has a similarly specialized hearing system. We explored the theory and application of a bubble curtain deflection screen using a split‐passage experimental channel equipped with angled bubble curtains while mapping both pressure and particle motion (sound) fields. The bubble curtain reduced passage of all three species through the experimental channel by 73–80% while producing sound between 100 and 1000 Hz at 145 dB, well within the hearing range of all three carp. While Common Carp were diverted to an unblocked channel, the Asian carp species reduced overall swimming activity, suggesting a slightly greater overall sensitivity. These results suggest bubble curtains could serve as viable and inexpensive deterrent systems to inhibit the movement of both Asian carp and Common Carp into shallow waters while having minimal impacts on other fish. Received June 10, 2015; accepted November 12, 2015 Published online March 16, 2016

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Bubble Curtain Deflection Screen Diverts the Movement of both Asian and Common Carp

Zielinski

Sorensen

2016

N American J Fish Manag

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“…Strobe lights or bubble curtains have had variable success as stand‐alone fish barriers (Stewart et al. , Zielinski and Sorensen ) but may be more successful when they are used together or in combination with sound stimuli (Welton et al. , Taylor et al.…”

Section: Biological Traits and Selective Fish Passagementioning

confidence: 99%

Selective fragmentation and the management of fish movement across anthropogenic barriers

Rahel

McLaughlin

2018

Ecological Applications

112

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Disruption of movement patterns due to alterations in habitat connectivity is a pervasive effect of humans on animal populations. In many terrestrial and aquatic systems, there is increasing tension between the need to simultaneously allow passage of some species while blocking the passage of other species. We explore the ecological basis for selective fragmentation of riverine systems where the need to restrict movements of invasive species conflicts with the need to allow passage of species of commercial, recreational, or conservation concern. We develop a trait-based framework for selective fish passage based on understanding the types of movements displayed by fishes and the role of ecological filters in determining the spatial distributions of fishes. We then synthesize information on trait-based mechanisms involved with these filters to create a multidimensional niche space based on attributes such as physical capabilities, body morphology, sensory capabilities, behavior, and movement phenology. Following this, we review how these mechanisms have been applied to achieve selective fish passage across anthropogenic barriers. To date, trap-and-sort or capture-translocation efforts provide the best options for movement filters that are completely species selective, but these methods are hampered by the continual, high cost of manual sorting. Other less effective methods of selective passage risk collateral damage in the form of lower or higher than desired levels of passage. Fruitful areas for future work include using combinations of ecological and behavioral traits to passively segregate species; using taxon-specific chemical or auditory cues to direct unwanted species away from passageways and into physical or ecological traps while attracting desirable species to passageways; and developing automated sorting mechanisms based on fish recognition systems. The trait-based approach proposed for fish could serve as a template for selective fragmentation in other ecological systems.

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Influence of low‐intensity light on phototactic behaviour of Schizothorax oconnori Lloyd

Lin

Dai

et al. 2019

River Research & Apps

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In the present study, colour selection and phototaxis experiments were performed on wild subadult Schizothorax oconnori Lloyd. The experimental variables included: five light colours: red, yellow, green, blue, and dark (no light conditions-control), and two flow rates of 0 and 0.3 m/s. Colour selection experiments were conducted to study the preference of S. oconnori to different colours of light in still water and at 10 lx of light intensity. The results showed that the distribution time of S. oconnori in the yellow and green light areas were significantly longer than those in the red and blue light areas (p < .05), and the order of preference for the five colours was: green-> yellow > black > blue > red. In the phototaxis experiment, the phototactic behaviour of S. oconnori was studied when the light intensity was at 20 lx and the water velocity was at 0 and 0.3 m/s, respectively. The results showed that in both still and dynamic water conditions, S. oconnori displayed positive phototaxis for yellow and green light, and negative phototaxis for red and blue light. S. oconnori displayed weak phototaxis with a light intensity threshold of 0.65 lx-0.80 lx and 1.50 lx-3.05 lx for yellow and green light, respectively. The results suggest that low-intensity green light could be used for light trapping of S. oconnori. The research may be helpful in the management of fish passage facilities and fisheries.

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Field test of a bubble curtain deterrent system for common carp

Cited by 26 publications

References 16 publications

Bubble Curtain Deflection Screen Diverts the Movement of both Asian and Common Carp

Bubble Curtain Deflection Screen Diverts the Movement of both Asian and Common Carp

Selective fragmentation and the management of fish movement across anthropogenic barriers

Influence of low‐intensity light on phototactic behaviour of Schizothorax oconnori Lloyd

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