Tides play a significant role in shaping coastal ecosystems by influencing various factors such as water levels, nutrient distribution, and habitat availability. The regular rise and fall of tides expose intertidal zones to fluctuating conditions, leading to unique adaptations in plants and animals that live in these areas. Tides also help in the circulation of nutrients and oxygen, which are essential for the health of coastal ecosystems. Additionally, tides can impact erosion and sedimentation processes, influencing the overall structure and stability of coastal habitats.