Most coastal fish species spend their early life stages in the pelagic environment, before settling in coastal habitats. The variability in the arrival of larvae to coastal habitats provide information on the species' biology and recruitment potential. To explore the dynamics of larval fish supply to coastal habitats in the NW Mediterranean Sea, 13 sites were monitored using light-traps, from July 2012 to December 2015. Most variation in Catches Per Unit Effort (CPUE) among topographic basins and species were statistically significant for high (quantile 75%) and very high (quantile 90%) catches only. At year scale, CPUE displayed strong seasonality, and three main species assemblages were detected in late spring-early summer, summer and late autumn-early winter. At month scale, CPUE were higher around the new moon for all quantiles and temporally autocorrelated at a lag of about 28 days. Larval supply also varied spatially with site-specific associations, and with riverine influence. All together, these results confirm that the previously described patterns of larval supply observed in tropical and subtropical environments (e.g., the high variability at all spatial and temporal scales and the strong influence of the moon) also apply to Mediterranean fish assemblages. The larval supply in the NW Mediterranean Sea comes out as a solid candidate for monitoring the state of the marine ecosystems, highlighting the need to continue such time series.

中文翻译：

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地中海西北部幼鱼定居的时空格局

大多数沿海鱼类在定居沿海栖息地之前，在远洋环境中度过其早期生命阶段。幼虫到达沿海栖息地的变化提供了有关该物种生物学和补充潜力的信息。为了探索地中海西北部沿海栖息地的幼鱼供应动态，从 2012 年 7 月到 2015 年 12 月，使用光阱监测了 13 个地点。仅对高（分位数 75%）和非常高（分位数 90%）渔获量显着。在年尺度上，CPUE 表现出强烈的季节性，在春末夏初、夏末和秋末初冬三个主要物种组合被检测到。在月尺度上，所有分位数的 CPUE 在新月前后都较高，并且在大约 28 天的滞后时间上自相关。幼虫供应在空间上也随着特定地点的关联和河流的影响而变化。总之，这些结果证实了先前描述的在热带和亚热带环境中观察到的幼虫供应模式（例如，所有空间和时间尺度的高度可变性以及月球的强烈影响）也适用于地中海鱼类组合。NW 地中海的幼虫供应是监测海洋生态系统状态的可靠候选者，突显了继续此类时间序列的必要性。这些结果证实，先前描述的在热带和亚热带环境中观察到的幼虫供应模式（例如，所有空间和时间尺度的高度可变性以及月球的强烈影响）也适用于地中海鱼类组合。NW 地中海的幼虫供应是监测海洋生态系统状态的可靠候选者，突显了继续此类时间序列的必要性。这些结果证实，先前描述的在热带和亚热带环境中观察到的幼虫供应模式（例如，所有空间和时间尺度的高度可变性以及月球的强烈影响）也适用于地中海鱼类组合。NW 地中海的幼虫供应是监测海洋生态系统状态的可靠候选者，突显了继续此类时间序列的必要性。