Motorboat noise impacts parental behaviour and offspring survival in a reef fish

Sophie Nedelec, Andy Radford, Leanne Pearl, Brendan Nedelec, Mark McCormick, Mark Meekan, Steve Simpson

Research output: Contribution to journalArticle (Academic Journal)peer-review

74 Citations (Scopus)
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Anthropogenic noise is a pollutant of international concern, with mounting evidence of disturbance and impacts on animal behaviour and physiology. However, empirical studies measuring survival consequences are rare. We use a field experiment to investigate how repeated motorboat-noise playback affects parental behaviour and offspring survival in the spiny chromis (Acanthochromis polyacanthus), a brooding coral reef fish. Repeated observations were made for 12 days at 38 natural nests with broods of young. Exposure to motorboat-noise playback compared to ambient-sound playback increased defensive acts, and reduced both feeding and offspring interactions by brood-guarding males. Anthropogenic noise did not affect the growth of developing offspring, but reduced the likelihood of offspring survival; while offspring survived at all 19 nests exposed to ambient-sound playback, six of the 19 nests exposed to motorboat-noise playback suffered complete brood mortality. Our study, providing field-based experimental evidence of the consequences of anthropogenic noise, suggests potential fitness consequences of this global pollutant.
Original languageEnglish
Article number20170143
Number of pages7
JournalProceedings of the Royal Society B: Biological Sciences
Early online date7 Jun 2017
Publication statusPublished - 14 Jul 2017


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