There are also three fishponds on Keston Common, adjacent to Fishponds Road. They built temples ("heiau"), fishponds, roads, canoes, and houses. The park contained a menagerie, aviaries, fishponds, orchards, an enclosed garden and facilities for tournaments. Many of the mangrove areas were destroyed to make way for fishponds and reclamation areas. The villagers around the area continued to grow taro and care for the fishponds. It also has the biggest area of brackish water fishponds in the region. Ozone is also widely used in the treatment of water in aquariums and fishponds. There are two parks in Berrylands Fishponds and Alexandra Park. The total area for fishponds is 53.9021 hectares. Two large fishponds were filled in to form Shafter Flats. Roger Greenaway was born in Fishponds, Bristol, England. Also found nearby were a Byzantine hot bath and artificial fishponds. St Matthias Campus was located in the suburb of Fishponds in Bristol. There are also a number of fishponds and prawn farming has become a major industry.