1. The lake floor according to echosounding is flat and has no terraces. 2. It was then dragged across the coralline rock lake floor by hand-winch. 3. These projects includes mud pumping of the lake floor and willow afforestations. 4. Taihu faces environmental damage from excessive quarrying from the lake floor . 5. Some particles are consumed as food, and feces are deposited on the lake floor . 6. An alga curtain on the lake floor gives the water a predominantly jade colour. 7. Installation required 190 anchors in the lake floor and took over 600 workers to complete. 8. Nonfood particles are combined with mucus and other matter and deposited on lake floors as pseudofeces. 9. For example, zebra mussels increase habitat complexity on lake floors , providing crevices in which invertebrates live. 10. Gas bubbles escape from the lake floor .
