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Continuous but not intermittent noise has a negative impact on mating success in a marine fish with paternal care

Journal article
Authors Eva-Lotta Blom
Charlotta Kvarnemo
Isabelle Dekhla
Sofie Schöld
M. H. Andersson
Ola Svensson
M. C. P. Amorim
Published in Scientific Reports
Volume 9
ISSN 2045-2322
Publication year 2019
Published at Department of marine sciences
Linnaeus Centre for Marine Evolutionary Biology (CEMEB)
Department of Biological and Environmental Sciences
Language en
Keywords acoustic communication, sand goby, pomatoschistus-microps, stress-response, common goby, behavior, exposure, history, sound, risk
Subject categories Marine ecology, Ethology and behavioural ecology


Anthropogenic underwater noise is a global pollutant of increasing concern but its impact on reproduction in fish is largely unknown. Hence, a better understanding of its consequences for this important link to fitness is crucial. Working in aquaria, we experimentally tested the impact of broadband noise exposure (added either continuously or intermittently), compared to a control, on the behaviour and reproductive success of the common goby (Pomatoschistus microps), a vocal fish with exclusive paternal care. Compared to the intermittent noise and control treatments, the continuous noise treatment increased latency to female nest inspection and spawning and decreased spawning probability. In contrast, many other female and male pre-spawning behaviours, and female ventilation rate (proxies for stress levels) did not differ among treatments. Therefore, it is likely that female spawning decisions were delayed by a reduced ability to assess male acoustic signals, rather than due to stress per se and that the silent periods in the intermittent noise treatment provided a respite where the females could assess the males. Taken together, we show that noise (of similar frequency range as anthropogenic boat noise) negatively affects reproductive success, particularly under a continuous noise exposure.

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