The COVID-19 pandemic led to a global lockdown in mid-2020, leading to a rapid decline in international travel and tourism. In French Polynesia, marine-based tourism activities ceased in March 2020 with the suspension of international flights (i.e., 45 days - between 20th March and 04^th May 2020), slowly restarting between May–July as domestic and international visitors returned. The impacts of this rapid change in human activity at reef tourism sites on associated reef fishes was examined at Bora-Bora Island through underwater surveys of five control and nine eco-tourism sites. Our results showed that fish density significantly increased from March to May (i.e., the overall density of fishes increased by 143% and harvested species by 215%), but returned to pre-lockdown levels by August 2020. At the usually busy eco-tourism sites, fish diversity, notably of piscivores, omnivores, and benthic feeders, was higher in the absence of tourists. The impact observed is almost certainly related to short term changes in fish behavior, as any density fluctuations at the population level are unlikely to have happened over such a short time frame. Overall, these findings highlight the influence of human activities on fish communities and underline the need for further research to evaluate the environmental impacts of eco-tourism.

COVID-19 大流行导致 2020 年中期全球封锁，导致国际旅行和旅游业迅速下降。在法属波利尼西亚，由于国际航班暂停（即 45 天 - 3 月 20 日至 04^{日），海上旅游活动于 2020 年 3 月停止}2020 年 5 月），随着国内和国际游客的返回，在 5 月至 7 月期间缓慢重启。通过对五个对照和九个生态旅游地点的水下调查，在波拉波拉岛检查了珊瑚礁旅游地点人类活动的这种快速变化对相关珊瑚礁鱼类的影响。我们的结果表明，鱼类密度从 3 月到 5 月显着增加（即鱼类的总体密度增加了 143%，捕获的物种增加了 215%），但到 2020 年 8 月恢复到封锁前的水平。在通常繁忙的生态旅游在没有游客的情况下，鱼类多样性，特别是鱼类、杂食性和底栖动物的多样性更高。观察到的影响几乎肯定与鱼类行为的短期变化有关，因为在如此短的时间内不太可能发生人口水平的任何密度波动。总的来说，这些发现突出了人类活动对鱼类群落的影响，并强调需要进一步研究以评估生态旅游对环境的影响。