While it was once the most dominant industry for residents in the Greater Toronto Area, agriculture now occupies a small percentage of the population, but still a large part of land in the surrounding four regional municipalities. Census data from 2006 has shown there are 3,707 census farms in the GTA, down 4.2% from 2001 and covering 274,363 hectares (677,970 acres). Almost every community in the GTA is currently experiencing a decrease in the acreage of farmland, with Mississauga seeing the most significant. The only communities in the GTA which are experiencing a growth in the acreage of farmland are Aurora, Georgina, Newmarket, Oshawa, Richmond Hill and Scugog, with Markham experiencing neither any growth nor decline. Most of the GTA's farmland is in Durham Region, with 55% of their total land area being farmland. This is followed by York Region with 41% of their lands being farm land, Peel Region with 34%, and Halton Region with 41%. Toronto's remaining farmland is completely within Rouge Park in the Rouge Valley. The average size of the farm in the GTA (183 acres (74 ha)) is much lower than the farms in the rest of Ontario (averaging 233 acres (0.94 km)). This has been attributed to the shift of farm types in the GTA from the traditional livestock and cash crop farms (requiring an extensive land base), towards more intensive enterprises including greenhouse, floriculture, nursery, vegetable, fruit, sheep and goats.
Answer this question, making sure that the answer is supposed by the text: is mississauga part of the greater toronto area?
yes