Moreton Bay was formed roughly 6000 years ago as the sea level rose and inundated what was then the floodplains of the Brisbane River. Moreton Bay and its islands were inhabited by indigenous tribes. In indigenous economy was very rich, one of the strongest for its productive yields of edible natural resources on the Australian continent. Of particular importance for the intertribal trade and ceremonial life were in particular massive oyster beds, the annual mullet catch, and bunya nut harvesting, on the coast and inland, which led to annual migrations either way to enjoy the abundance of the respective tribal group’s territory. In the 1840s, resident white administrators estimated the aboriginal population of the area to be around 4,000. They were only outnumbered with the influx over the five year period of 1850-1855 with saw the disembarkation of 3,000 European migrants on their land.
History info thanks to Wikipedia
