The sand worm itself does not look much, but its characteristic excrement hobe reveals its presence. It lives a retracted life in the sand bottom, where it lives on the organic material found in the sand. In the Wadden Sea you can find as much as 70 Lugworms per. square meters. The high water twice a day brings plankton into the low water, which gives plenty of food for the worms. At the same time, the water is oxygenated each time the tide changes. The Lugworm is rarely seen, because it stays most of the time 15-20 centimeters below the seabed in a U-shaped tube with the end in which the mouth sits, at the bottom of the tube. It eats sand to grab organic material and plankton organisms found in the sand. The sand comes out again through the intestine at the upper end of the tube, which is seen as small sand circles around the seabed.
Did you know that:
It has been calculated that a Lugworm annually “eats” 25 kg of sand.