Lacustrine systems include all wetland and deepwater habitats associated with depressions or damned channels greater than 8 ha in area, and which have less than 30% of their area dominated by trees, shrubs, or emergent vegetation.
There are a wide variety of conditions that can cause thigh pain. For example, thigh pain can be caused by physical activity, injury, or age-related wear and tear on the hips and knees, which may cause pain or discomfort in the thigh area near the joint.
Referred pain from the lumbar spine is where an injury or problem in the lower back results in pain in the knee. This is likely due to pressure on the sciatic nerve causing pain to radiate down in the the leg and knee. Excessive lateral pressure syndrome.