Biophysical interactions of the mesopelagic fauna and hydrodynamic features were investigated at a shallow, tall seamount in the tropical Northeast Atlantic based on data from three inter-disciplinary surveys collected between 2009 and 2015. Senghor Seamount is located close to the equator in a unique but underexplored oceanographic setting, where classical seamount effects are expected to be small. Shipboard Acoustic Doppler Current Profiler (ADCP) and remote sensing data revealed flow phenomena strongly varying over different temporal and spatial scales. The quasi-steady, longer period flow at the seamount was largely unchanged by flow-topography interaction with the exception of a persistent and recurring shadow zone of weaker currents downstream of the summit. Senghor Seamount is exposed to energetic mesoscale eddy activity in surrounding waters with potentially large physical and biological implications. At higher frequencies, tidal currents interacting with the seamount generated large-amplitude internal waves propagating horizontally and vertically away from the summit. Analysis of acoustic backscatter data and micronekton biomass displayed prominent near-surface night time and deep (>400 m) day-time scattering layers associated with the diurnal vertical migration of the mesopelagic fauna. An intense and previously unreported aggregation of acoustic scatterers was detected in the depth range 150–300 m inside a radius of three kilometres along the upper slopes of the seamount summit. ADCP measurements over a full semi-diurnal tidal cycle suggest that biophysical interactions were present in near-seafloor waters around the upper seamount as evidenced by plankton distributions that were modified by topographic blocking during descent and aggregation in waters characterised by internal waves and enhanced tidally-driven energy dissipation.

根据2009年至2015年间收集的三项跨学科调查的数据，在热带东北大西洋的浅高海山上研究了中生动物群的生物物理相互作用和水动力特征。Senghor海山位于赤道附近，处于一个独特但尚未开发的状态在海洋环境中，预计经典海山影响很小。船上声学多普勒电流剖面仪（ADCP）和遥感数据显示，流动现象在不同的​​时空尺度上变化很大。海山的准稳定，较长时期的流量在很大程度上不受流-地形相互作用的影响，只是山顶下游弱流的持续和反复出现的阴影区除外。Senghor Seamount在周围水域中充满能量的中尺度涡旋活动，可能会对身体和生物造成重大影响。在更高的频率下，与海山相互作用的潮流产生了大振幅的内波，该内波在水平方向和垂直方向上远离山顶传播。声学背向散射数据和微核生物量的分析显示出近地表深夜和中深层动物群的昼夜垂直迁移相关的深层（> 400 m）日间散射层。在沿海山峰顶的三公里半径内150-300 m的深度范围内，检测到强烈的，以前未报告的声散射聚集体。