The shell dimensions are narrow to correspond with the limpet's habitat : the narrow blades of surfgrasses in the genus " Phyllospadix ", found at low tide levels.
12.
Feeding on beach rock at a specific height over the average low tide level, the snails slowly move about in their clusters, preserving the precious moisture that allows them to breathe overwater.
13.
The Maltese-registered tanker Corellis, with a 209, 000 barrel cargo of light crude oil, left the port with its keel 36 feet below water when the limit was at the 34-foot low tide level, Pumar Abreu said.
14.
A low wooden bulkhead was built along the south side of the island and an impromptu sewer system was laid out with pipes draining onto the beaches at their low tide levels to keep the discharge out of sight.
15.
All met with opposition but in 1843 a bill was prepared for a new channel to an outfall at Wiggenhall St Germans, some 9 miles further down the Great Ouse, where low tide levels were lower than at Salters Lode.
16.
If the shore is absolutely flat and at low tide level, then the water that spills over will move far inland, but not raise much in height, since the water is spread out over such a large area . talk ) 13 : 27, 22 September 2014 ( UTC)
17.
In reality the full extent of the tides is only visible at the entry of the bay ( the sea level around the Mont Saint-Michel is above the low tide level ) and its actual speed is closer to a walking human, the fastest observed being around 6.1 km / h.
18.
A pit or channel in the mudflats was dredged to a depth of below low tide level and huge loads of rock were dumped in from scows and barges at the center line of the trench until they stopped sinking, to make an evenly graded ridge the whole way at the height of mean low tide.
