Quagga mussels threaten Swiss eco-systems

Swiss lakes are facing a new threat: molluscs. The Quagga mussel, originally from the Black Sea, is spreading rapidly in Swiss lakes and gobbling...

Swiss lakes are facing a new threat: molluscs. The Quagga mussel, originally from the Black Sea, is spreading rapidly and gobbling up the food that fish need. The worst-hit area is Lake Constance, where 15,000 Quagga mussels per m2 cover the lakebed. The invasive species has also been found in lake... More info