Abstract Arenicola marina (Annelida Polychaeta) is a harvested ecosystem engineer inhabiting galleries within soft-sediment foreshores from the Mediterranean to the Arctic. It displays a typical distribution pattern on most foreshores, with the juveniles inhabiting the mediolittoral shore and migrating to the infralittoral shore while growing. In this study, we have characterized the shore migrations of a temperate population of A. marina and estimated its potential individual growth and reproduction under different migration scenarios using a Dynamic Energy Budget model. A sand temperature model was developed in order to predict the temperature experienced by lugworms according to the depth of their galleries and their bathymetric level. The food availability and the associated scaled functional response were estimated from in situ growth data and associated nitrogen content and chlorophyll-a concentration (Chla) data. The metabolic response of lugworms to temperature (temperature tolerance range, related Arrhenius temperatures) was assessed from literature data. The sand temperature model outputs did not explain alone spatial differences in individual growth and reproduction. However, an increase of food availability with bathymetry, with Chla as a proxy, well explained growth and reproduction. For now, the temperature hypothesis is discarded but other factors (desiccation or hypoxia) should be considered in future studies.

中文翻译：

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调查下岸迁移对生态系统工程师 Arenicola marina 个体生长和繁殖的影响

摘要 Arenicola marina (Annelida Polychaeta) 是一个收获的生态系统工程师，栖息在从地中海到北极的软沉积物前滩内的画廊。它在大多数前滨表现出典型的分布模式，幼鱼栖息在中岸，在生长过程中向近岸迁移。在这项研究中，我们描述了 A. marina 温带种群的海岸迁移，并使用动态能量预算模型估计了不同迁移场景下其潜在的个体生长和繁殖。沙地温度模型的开发是为了根据沙蚕的通道深度和水深水平来预测沙蚕所经历的温度。根据原位生长数据和相关的氮含量和叶绿素-a 浓度 (Chla) 数据估计食物可用性和相关的缩放功能响应。根据文献数据评估了蚯蚓对温度的代谢反应（温度耐受范围，相关的阿伦尼乌斯温度）。沙温模型输出并不能单独解释个体生长和繁殖的空间差异。然而，以 Chla 为代表的水深测量增加了食物供应，很好地解释了生长和繁殖。目前，温度假设被丢弃，但在未来的研究中应考虑其他因素（干燥或缺氧）。相关的 Arrhenius 温度）是从文献数据中评估的。沙温模型输出并不能单独解释个体生长和繁殖的空间差异。然而，以 Chla 为代表的水深测量增加了食物供应，很好地解释了生长和繁殖。目前，温度假设被丢弃，但在未来的研究中应考虑其他因素（干燥或缺氧）。相关的 Arrhenius 温度）是从文献数据中评估的。沙温模型输出并不能单独解释个体生长和繁殖的空间差异。然而，以 Chla 为代表的水深测量增加了食物供应，很好地解释了生长和繁殖。目前，温度假设被丢弃，但在未来的研究中应考虑其他因素（干燥或缺氧）。