The response of common carp (Cyprinus carpio) to insonified bubble curtains
The response of common carp (Cyprinus carpio) to insonified bubble curtains
Acoustic bubble curtains have been marketed as relatively low cost and easily maintained behavioural deterrents for fisheries management. Their energy efficiency can be improved by reducing air flow and exploiting bubble resonance. In a series of three flume experiments, we: (1) investigated the reactions of carp to a low air flow bubble curtain, (2) compared the effectiveness of resonant versus non-resonant insonified bubble curtains (for the same volume flux of gas injected through the nozzles) to deter passage, and determined the stimuli responsible for eliciting deterrence, and (3) included the effect of visual cues generated by the bubble curtain. This study showed that bubble curtains with a higher proportion of resonant bubbles deterred carp relatively better. Passage rejection was likely influenced by multiple cues at distances within a body length of the fish - specifically the rate of change in both particle motion, and flow velocity caused by rising bubbles. All acoustic bubble curtains were less effective in the presence of daylight, suggesting that vision plays an important role at mediating carp reactions. We discuss the importance of ascertaining the bubble size distribution, in addition to the gas flow rate and aperture size, when characterising acoustically active bubble curtains.
Bubble coalescence, Bubble resonance, Fish passage, Fish screening
3874-3888
Flores Martin, Nicholas
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Kemp, Paul
9e33fba6-cccf-4eb5-965b-b70e72b11cd7
Leighton, Timothy
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White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
22 November 2021
Flores Martin, Nicholas
9f9f0ddd-bb25-4d45-ae04-7989f32704f7
Kemp, Paul
9e33fba6-cccf-4eb5-965b-b70e72b11cd7
Leighton, Timothy
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Flores Martin, Nicholas, Kemp, Paul, Leighton, Timothy and White, Paul
(2021)
The response of common carp (Cyprinus carpio) to insonified bubble curtains.
The Journal of The Acoustical Society of America, 150 (5), .
(doi:10.1121/10.0006972).
Abstract
Acoustic bubble curtains have been marketed as relatively low cost and easily maintained behavioural deterrents for fisheries management. Their energy efficiency can be improved by reducing air flow and exploiting bubble resonance. In a series of three flume experiments, we: (1) investigated the reactions of carp to a low air flow bubble curtain, (2) compared the effectiveness of resonant versus non-resonant insonified bubble curtains (for the same volume flux of gas injected through the nozzles) to deter passage, and determined the stimuli responsible for eliciting deterrence, and (3) included the effect of visual cues generated by the bubble curtain. This study showed that bubble curtains with a higher proportion of resonant bubbles deterred carp relatively better. Passage rejection was likely influenced by multiple cues at distances within a body length of the fish - specifically the rate of change in both particle motion, and flow velocity caused by rising bubbles. All acoustic bubble curtains were less effective in the presence of daylight, suggesting that vision plays an important role at mediating carp reactions. We discuss the importance of ascertaining the bubble size distribution, in addition to the gas flow rate and aperture size, when characterising acoustically active bubble curtains.
Text
Carp response to resonant acoustic bubbles
- Accepted Manuscript
More information
Accepted/In Press date: 9 October 2021
Published date: 22 November 2021
Additional Information:
Funding Information:
The lead author was funded by an EPSRC Doctoral Training Centre grant (No. 1642690). We thank A. Holgate, Dr. T. Tsuzaki, and K. Scammell for assistance with designing and constructing the bubble generator, and experimental setup; S. Ha′sciłowicz and J. Miles for their coding inputs; Dr. Kyungmin Baik for helpful discussions on the scattering cross sections; and members of the International Centre for Ecohydraulics Research (ICER), the Centre for Doctoral Training in Sustainable Infrastructure Systems (CDT-SIS), and the Institute for Sound and Vibration Research (ISVR) for experimental cover, and various discussions, suggestions, and constructive comments provided throughout. Data supporting this study are openly available from the University of Southampton repository at https://doi.org/10.5258/SOTON/D1782.
Publisher Copyright:
© 2021 Acoustical Society of America.
Keywords:
Bubble coalescence, Bubble resonance, Fish passage, Fish screening
Identifiers
Local EPrints ID: 451934
URI: http://eprints.soton.ac.uk/id/eprint/451934
ISSN: 0001-4966
PURE UUID: 741c7cb3-3e27-42c7-bbe1-dba3e7dc29a5
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Date deposited: 04 Nov 2021 17:31
Last modified: 12 Jul 2024 04:01
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