Collective behaviour of the European minnow (Phoxinus phoxinus) is influenced by signals of differing acoustic complexity
Collective behaviour of the European minnow (Phoxinus phoxinus) is influenced by signals of differing acoustic complexity
Collective behaviour, such as shoaling in fish, benefits individuals through a variety of activities such as social information exchange and anti-predator defence. Human driven disturbance (e.g. anthropogenic noise) is known to affect the behaviour and physiology of individual animals, but the disruption of social aggregations of fish remains poorly understood. Anthropogenic noise originates from a variety of activities and differs in acoustic structure, dominant frequencies, and spectral complexity. The response of groups of fish may differ greatly, depending on the type of noise, and how it is perceived (e.g. threatening or attractive). In a controlled laboratory study, high resolution video tracking in combination with fine scale acoustic mapping was used to investigate the response of groups of European minnows (Phoxinus phoxinus) to signals of differing acoustic complexity (sinewave tones vs octave band noise) under low (150 Hz) and high (2200 Hz) frequencies. Fish startled and decreased their mean group swimming speed under all four treatments, with low frequency sinewave tones having the greatest influence on group behaviour. The shoals exhibited spatial avoidance during both low frequency treatments, with more time spent in areas of lower acoustic intensity than expected. This study illustrates how noise can influence the spatial distribution and social dynamics within groups of fish, and owing to the high potential for freshwater aquatic environments to be influenced by anthropogenic activity, wider consequences for populations should be further investigated.
anthropogenic noise, fish, group behaviour, social dynamics, spatial avoidance
Currie, Helen Ann Laura
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White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Leighton, Timothy
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Kemp, Paul
9e33fba6-cccf-4eb5-965b-b70e72b11cd7
August 2021
Currie, Helen Ann Laura
d7b6bb3f-3d2f-44eb-81f2-c19c3d0f7c16
White, Paul
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Leighton, Timothy
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
Kemp, Paul
9e33fba6-cccf-4eb5-965b-b70e72b11cd7
Currie, Helen Ann Laura, White, Paul, Leighton, Timothy and Kemp, Paul
(2021)
Collective behaviour of the European minnow (Phoxinus phoxinus) is influenced by signals of differing acoustic complexity.
Behavioural Processes, 189, [104416].
(doi:10.1016/j.beproc.2021.104416).
Abstract
Collective behaviour, such as shoaling in fish, benefits individuals through a variety of activities such as social information exchange and anti-predator defence. Human driven disturbance (e.g. anthropogenic noise) is known to affect the behaviour and physiology of individual animals, but the disruption of social aggregations of fish remains poorly understood. Anthropogenic noise originates from a variety of activities and differs in acoustic structure, dominant frequencies, and spectral complexity. The response of groups of fish may differ greatly, depending on the type of noise, and how it is perceived (e.g. threatening or attractive). In a controlled laboratory study, high resolution video tracking in combination with fine scale acoustic mapping was used to investigate the response of groups of European minnows (Phoxinus phoxinus) to signals of differing acoustic complexity (sinewave tones vs octave band noise) under low (150 Hz) and high (2200 Hz) frequencies. Fish startled and decreased their mean group swimming speed under all four treatments, with low frequency sinewave tones having the greatest influence on group behaviour. The shoals exhibited spatial avoidance during both low frequency treatments, with more time spent in areas of lower acoustic intensity than expected. This study illustrates how noise can influence the spatial distribution and social dynamics within groups of fish, and owing to the high potential for freshwater aquatic environments to be influenced by anthropogenic activity, wider consequences for populations should be further investigated.
Text
Currie_Acoustic_Complexity_Manuscript
- Accepted Manuscript
More information
Accepted/In Press date: 5 May 2021
e-pub ahead of print date: 7 May 2021
Published date: August 2021
Keywords:
anthropogenic noise, fish, group behaviour, social dynamics, spatial avoidance
Identifiers
Local EPrints ID: 449193
URI: http://eprints.soton.ac.uk/id/eprint/449193
ISSN: 0376-6357
PURE UUID: d7991035-ec3d-47b3-a042-54e38fa2a3fa
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Date deposited: 19 May 2021 18:14
Last modified: 17 Mar 2024 06:33
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