Manta is a mid-sized city in Manabi Province, Ecuador. It is the second most populous city in the province, the fifth most populous in the country and, economically, the third most important city of Ecuador. Manta has existed since Pre-Columbian times. It was a trading post for the Mantas. According to the 2001 census, the city had 192,322 inhabitants. Its main economic activity is tuna fishing. Other economic activities include tourism and a chemical industry with products from cleaning supplies to oils and margarine