This study investigates the evolution of deep-sea lebensspuren assemblages before, during, and after five high-energy episodes over a storm-events period lasting 25 days. Bioturbational changes were characterized through brief benthic storm events in the northeastern Pacific at the abyssal time-series site Station M (4000 m depth). Quantification of seafloor coverage was processed to evaluate variations on the substratum type. A total of 15 lebensspuren morphotypes were identified. Most traces could be associated with feeding faecal casts, crawling tracks, dwellings and resting structures. Lebensspuren assemblages were similar before and after the storm-events period; full assemblage was re-established in one week. This high energy period was associated with an impoverishment of lebensspuren abundance and assemblage diversity. Only elpidiid holothurian feeding faecal casts recorded a notable increase in abundance during this period of high energy. In addition, this energetic stage involved the appearance of exhumed surface patches. Holothurian feeding activity appeared to have been primarily influenced by the local-scale erosion and re-suspension of unconsolidated surface sediment, which led to the reorganization of organic matter resources. We propose the mobility of elpidiid holothurians allowed them to gain a competitive advantage in obtaining these new resources. This research presents a novel relationship between lebensspuren, faunal activity, and bottom currents that broadens our understanding of benthic community responses to deep-sea bottom currents. Finally, we discuss these results as they pertain to the fossil record to assess how bioturbational structure development could be controlled by substratum type, organic matter availability and duration of energetic episodes.

这项研究调查了在持续25天的暴风雨期间，在五个高能事件发生之前，之中和之后，深海lebensspuren组合的演化。通过在深海时间序列站点M站（4000 m深度）东北太平洋发生短暂的底栖风暴事件来表征生物湍流变化。对海底覆盖物进行量化处理以评估基质类型的变化。总共鉴定出15种lebensspuren形态型。大多数痕迹可能与喂养粪便，爬行的痕迹，住宅和休息结构有关。Lebensspuren的组合在暴风雨事件发生前后前后是相似的。在一周内重新建立了完整的组合。这个高能量时期与lebensspuren丰度和组合多样性的贫困有关。在此高能量时期，只有Elpidiid holothurian喂养的粪便铸模记录了丰度的显着增加。另外，该充满活力的阶段涉及发掘出的表面斑块的出现。全息的摄食活动似乎主要受到未固结表层沉积物的局部侵蚀和再悬浮的影响，从而导致有机质资源的重组。我们建议，腕足类千足虫的流动性使他们在获得这些新资源方面获得竞争优势。这项研究提出了lebensspuren，动物活动和海底流之间的新型关系，拓宽了我们对底栖生物群落对深海海底流的反应的理解。最后，