Because little is known about the effects of currents on lake charr (Salvelinus namaycush) deposition and fate of eggs, a method to determine their role in spawning success was developed. It is suggested that an ideal strategy for lake charr egg survival is to select hydrodynamic conditions that allow for eggs to roll on lakebed and into void spaces in the substratum, whilst avoiding to be lifted from it. On that basis, egg movement on spawning grounds were modeled using an approach that combines fluid mechanics and biology. Wave modeling combined with drag and lift forces and egg parameters were used to propose both critical entrainment and resuspension velocities as well as a modular range of depths that should be ideal for lake charr spawning given a certain fetch. Modeling suggested that critical velocities of 4.1 and 10.3 cm/s would cause egg entrainment and resuspension respectively. The model was partially validated using in situ sampling on three spawning sites in Lake Témiscouata (Québec, Canada). Then, further model applications were conducted on twelve characterized Great Lakes spawning sites using data found in the literature. Relation of egg survival and the difference between resuspension depth and spawning depth at those sites was found to fit $y=66.78e^{0.13x}$ with a correlation coefficient $r^2=0.89$. The findings provide the first explanation of the impact of currents on lake charr spawning success. They provide insight to help researchers and authorities in their restorative and protection efforts for lake charr populations.

由于人们对水流对黑鲑（Salvelinus namaycush ）沉积和卵命运的影响知之甚少，因此开发了一种确定它们在产卵成功中的作用的方法。建议湖夏尔鱼卵存活的理想策略是选择允许卵在湖床上滚动并进入基质中的空隙空间的流体动力学条件，同时避免从湖床上抬起。在此基础上，使用结合流体力学和生物学的方法对产卵场的卵运动进行建模。波浪模型结合阻力和升力以及鸡蛋参数被用于提出临界夹带和再悬浮速度以及模块化的深度范围，如果有一定的获取，这应该是湖炭鱼产卵的理想选择。建模表明，4.1 和 10.3 厘米/秒的临界速度将分别导致卵夹带和再悬浮。该模型在特米斯库阿塔湖（加拿大魁北克省）的三个产卵点使用原位采样得到了部分验证。然后，使用文献中的数据在十二个具有特征的五大湖产卵点上进行了进一步的模型应用。发现这些地点的卵存活率和再悬浮深度和产卵深度之间的差异是合适的$是=66.78{\mathrm{电子}}^{0.13X}$ 有相关系数 $r^2=0.89$. 这些发现首次解释了洋流对红鲑鱼产卵成功的影响。它们提供了洞察力，以帮助研究人员和当局为湖夏尔种群进行恢复和保护工作。