Marshes are divided into distinct zones, the high marsh and the low marsh. The difference in elevation between these two areas is usually only a few centimeters, but for the plants that inhabit each of these zones, a few centimeters makes a world of difference. The low marsh floods daily at high tide.alt marshes are a mosaic of snaking channels called tidal creeks that fill with seawater during high tides and drain during low tides. Fish species including flounder and mullet live most of their lives in marsh creeks. (top) Levees are areas of higher ground that border the marsh creeks.
The average weight of a crane bird can be between 8.8 and 26.5 pounds.ay varies according to experience, qualifications, whether contract, permanent or other and location of work   As of 25th Jan 2008: In Essex, UK, a salary posted on a â¦ recruitment site states Â£18,500 - Â£23, 000 for a Class 2 Crane Driver.
The third method is to have a heavy-lift helicopter (or â skycrane â) fly the crane to the top of the construction site. This must be done piece by pieceâjust a single segment of a craneâs tower can weigh between 3,000 and 20,000 pounds.he crane stands inside the center of the building, in a kind of makeshift courtyard, where it constructs the skyscraper around itself about a hundred feet at a time. A hydraulic cylinder at the craneâs base elevates it through the hollow middle of the building to a higher floor.