Alarm on Lake Constance: Low water endangers ports and fishing!

Alarm on Lake Constance: Low water endangers ports and fishing!

Konstanz, Deutschland - The water level of Lake Constance is currently historically low. With a level stand of 2.73 meters in Constance on April 8, 2025, the water level is only a little above the record low of 1972. According to the information from bnn.de , the consequences of the low water are diverse. Although the drinking water supply is not endangered because the water is removed from a depth of 70 meters, some ports have to fight with considerable restrictions. For example, a port on Lower Sea is completely dry, and boats are on the dry.

The causes of this low level are justified in the lack of rainfall and a weak snow melt. According to the State Institute for the Environmental Baden-Württemberg (LUBW), this condition is exceptional for this season. The current water level is 35 cm below the seasonal mean for this calendar day. The weather forecasts are also not very promising, since no rain is expected in the coming days, which could further tighten the Situation.

serious effects on nature and leisure

The low water also affects the port restrictions also on leisure activities and tourism. Many excursion ships can no longer create, which reduces the tourist attractiveness of Lake Constance. Fischer reports difficult working conditions because they cannot use their boats due to the low water depth. The Lower Sea is particularly affected, where Fischer can no longer reach their usual areas. nau.ch warns that the summer 2025 could go into history as the year of the record low water.

The eye -catching effects on the bank landscape are also remarkable. The bank areas are covered with silt and algae, and steers protrude several meters above the now visible sea base. The smallest lime island in Lindau can now be reached on foot. This situation is not only worrying for the wildlife, but also has long -term ecological effects. The increasing temperatures of the water, which have increased by more than three degrees since the 1960s, can affect water quality and cause lack of oxygen in deeper layers of water.

climate change as a long -term challenge

climate change plays a central role in the current situation. Studies of the Environment Increase activities of aquatic organisms. However, the risk of parasite and fungal diseases in warmer water is also increased. This mainly affects the fish stocks in Lake Constance, since warmer water influences diversity and, above all, disadvantaged cold water species.