This was suggestive of feeding near or at the sea bottom. Parts of the sea bottom may become fallout. Triggerfish lay their demersal eggs in a small hole dug in the sea bottom. The line connecting fixes is the track over the ground or sea bottom. However, most areas with significant natural sea bottom disturbance events are in relatively shallow water. The windswept west coast is steep and rocky with a very deep sea bottom. In deep marine environments, the water current working the sea bottom is small. The mine was tied to the sea bottom by an anchor. Floating skins and rubbing behaviours at sea bottom indicated possible moulting had taken place. A walk along the dried out sea bottom brings more excitement and danger. As the sea bottom slowly rose, marshes and forests appeared. They live close to the sea bottom, ranging from shallow water to the hadal zone. European shags are preponderantly benthic feeders, i.e. they find their prey on the sea bottom. A shelf-mounted plant could be towed to the site and affixed to the sea bottom. Most male territories are located over a sandy sea bottom or on a rocky reef.