Laboratoire de Biologie des Organismes et Ecosystèmes Aquatiques (BOREA), Université des Antilles - MNHN - CNRS 8067 - SU - IRD 207 - UCN, Bâtiment de Biologie Marine, Campus de Fouillole, B.P. 592, 97159, Pointe-à-Pitre, Guadeloupe; Laboratoire d'Excellence CORAIL, 58 avenue Paul Alduy, 66860, Perpignan CEDEX, France; Functional and Evolutionary Morphology Lab, AFFISH-RC, UR FOCUS, University of Liège, Campus du Sart Tilman - Bât. B6c, Quartier Agora, Allée de la Chimie, 3, 4000, Liège, Belgium.
Laboratoire d'Excellence CORAIL, 58 avenue Paul Alduy, 66860, Perpignan CEDEX, France; PSL Research University: EPHE-UPVD-CNRS, USR 3278 CRIOBE, BP 1013, 98729, Papetoai, Moorea, French Polynesia.
Environ Pollut. 2021 Nov 15;289:117898. doi: 10.1016/j.envpol.2021.117898. Epub 2021 Aug 5.
In 2020, the COVID-19 pandemic led to government-enforced limits on activities worldwide, causing a marked reduction of human presence in outdoors environments, including in coastal areas that normally support substantial levels of boat traffic. These restrictions provided a unique opportunity to quantify the degree to which anthropogenic noise contributes to and impacts underwater soundscapes. In Guadeloupe, French West Indies, a significantly lower number of motor boats were recorded in the vicinity of the major urban marina during the peak of the first COVID-19 lockdown (April-May 2020), compared with the number recorded post-lockdown. The resumption of human activities at the end of May was correlated with a maximum increase of 6 decibels in the ambient noise level underwater. The change in noise level did not impact daily sound production patterns of vocal fishes, with increased activity at dusk seen both during and after the lockdown period. However, during the lockdown vocal activity was comprised of a reduced number of sounds, suggesting that anthropogenic noise has the potential to interfere with vocalization behaviours in fishes.
2020 年，COVID-19 大流行导致全球范围内的政府活动限制，使人类在户外环境中的存在明显减少，包括在通常有大量船只交通的沿海地区。这些限制为量化人为噪声对水下声景的贡献和影响程度提供了一个独特的机会。在法属西印度群岛的瓜德罗普岛，在第一次 COVID-19 封锁期间（2020 年 4 月至 5 月），主要城市码头附近记录到的机动船数量明显少于封锁后的数量。5 月底人类活动的恢复与水下环境噪声水平最大增加 6 分贝相关。噪声水平的变化并没有影响鱼类发声的日常声音产生模式，无论是在封锁期间还是之后，黄昏时的活动都有所增加。然而，在封锁期间，发声活动的声音数量减少，这表明人为噪声有可能干扰鱼类的发声行为。
