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  • 1.
    Blom, Eva-Lotta
    et al.
    University of Gothenburg.
    Kvarnemo, Charlotta
    University of Gothenburg.
    Dekhla, Isabelle
    University of Gothenburg.
    Schöld, Sofie
    University of Gothenburg.
    Andersson, Mathias H.
    Swedish Defence Research Agency.
    Svensson, Ola
    Södertörn University, School of Natural Sciences, Technology and Environmental Studies, Mathematics Teaching. University of Gothenburg.
    Amorim, M Clara P
    ISPA-Instituto Universitário, Lisboa, Portugal / Universidade de Lisboa, Lisboa, Portugal.
    Continuous but not intermittent noise has a negative impact on mating success in a marine fish with paternal care2019In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 9, no 1, article id 5494Article in journal (Refereed)
    Abstract [en]

    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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