Mountain streams

Mountain streams are characterised by a sometimes very steep slope and a tumultuous current. Due to the continual intermingling of elements, the water is highly oxygenated and favourable to certain animal species (brown trout, water invertebrates, etc.) that are adapted to the ecological conditions of these ecosystems (even when the water turns to ice !). Mountains streams are also a major factor in erosion due to their role in crushing elements and transporting sediment from the upper slope pools to the large rivers. They represent a very fragile and threatened environment, particularly due to human development, and are among the ecosystems needing to be protected !