Several bodies of water in Ghent are turning a striking green. The cause is duckweed, an aquatic plant that is in principle harmless. However, if it remains for a long time, it can cause an oxygen deficiency, leading to the death of fish.
Several bodies of water in Ghent are turning a striking green. The cause is duckweed, an aquatic plant that is in principle harmless. However, if it remains for a long time, it can cause an oxygen deficiency, leading to the death of fish.