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.
Average Temperatures for Portland. Portland's coldest month is January when the average temperature overnight is 12.5Â°F. In July, the warmest month, the average day time temperature rises to 78.8Â°F.