人工鱼礁在海洋生态系统恢复中发挥着关键的功能作用，特别是在鱼类种群的重建中。然而，为粘性卵产卵的鱼类栖息地改善而改进礁石设计是非常具有挑战性的。粘性卵必须粘附在基质上以继续孵化过程，也就是说，提高卵在鱼礁上附着率可以使礁区成为更好的鱼类产卵栖息地。在本研究中，开发了一种垂直二维格子Botlzmann方法来模拟礁区的复杂水力场，并预测鱼卵受水动力环境影响的运动情况。本研究使用粒子图像测速对模型进行验证。并探讨了四种开口比设计的鱼礁的生态影响。

人工鱼礁的配置可以有效地改善水动力条件，有利于粘性鱼卵的生长。从生态学和经济学的角度来科学地设计鱼礁区块的数量是非常重要的。本研究结合欧拉和拉格朗日的角度，建立了基于介观的Botlzmann框架的数值模型来模拟礁区的流场和粘性鱼卵输移。该模型通过PIV实验进行验证，并研究了不同配置的人工鱼礁下鱼卵的空间分布特征。采用多目标分析法来平衡鱼礁的经济成本和生态功能，以获得在应用水域中获得鱼礁的最佳配置方法。这为优化鱼礁区的设计提供了一种可靠和方便的方法，同时考虑到了鱼礁的修复效果和资本效益。

Artificial reefs play a key functional role in marine ecosystem recovery and particularly in the rebuilding of fish populations. However, improving the reef design for viscous-egg-spawning fish is very challenging. Viscous eggs must adhere to a substrate to continue the hatching process, i.e., increasing the egg adhesion rate of the reef makes it a better fish spawning habitat. Therefore, the movement characteristics of viscous fish eggs in an artificial reef are a vital issue in marine ecology. In this study, a vertical two-dimensional lattice Boltzmann method was developed to simulate the complex hydraulic field in a reef zone and to predict the movement of fish eggs as affected by the hydrographic environment. A particle image velocimetry experiment on fish egg transportation was carried out to validate the model. These results revealed the effects of different hydrodynamic conditions on the migration of sticky eggs in the reef zone, to promote the sustainable development of fisheries and restore the marine ecology.

The configuration of artificial fish reefs can be effective in improving the hydrodynamic conditions and benefit for the growth of sticky fish eggs. Scientific design of the reef block number is significant from both ecological and economic views. This study sets up a numerical model to simulate the flow field and viscous fish eggs in the reef area, based on the mesoscopic lattice Boltzmann framework coupled with Eulerian and Lagrangian perspectives. This model is verified by a PIV experiment and obtains the spatial distribution characteristics of fish eggs under various configurations of artificial reefs. The multi-objective analysis was adopted to balance the economic cost and ecological function of fish reefs, in order to obtain the optimal configuration of fish reefs in the applied waters. This provides a reliable and convenient way to optimize the design of reef zones, considering both the effect of restoration and the capital efficiency.