Salt marshes are sometimes included in lagoons, and the difference is not very marked; the Venetian Lagoon in Italy, for example, is made up of these sorts of animals and or living organisms belonging to this ecosystem. They have a big impact on the biodiversity of the area.alt marsh during low tide, mean low tide, high tide and very high tide (spring tide).
The average summer temperature in Maine depends on which part of the state you are talking about, since different parts of the state have different averages. In general, summer temperatures in Maine tend to be about 77 to 79 degrees Fahrenheit, though in some places they may run slightly below or slightly over that.
The temperature reaches the lower- to mid-70s during the day and the mid-50s at night. July is Maine's hottest month, with an average high of 79 degrees. But as visitors in 2001 found out, the state is not immune from the searing heat that so often afflicts the southern states. Heat waves -- in which there are three consecutive days of temperatures of at least 90 -- are not common.