Update: 11:38AM THE Biosecurity Authority of Fiji estimates that local population of American Iguanas has ballooned to 2500 since the pest was first introduced into the country.
Biosecurity Authority of Fiji acting chief executive officer Waisiki Gonemaituba said however that it was impossible to give an exact population.
"It is impossible to give an accurate estimate of the numbers of American iguanas living in Fiji but an educated guess would probably 2500 living on Qamea and Matagi, perhaps 400 adults and the remainder juveniles and hatchlings," Mr Gonemaituba said.
He explained that BAF was working with Mareqeti Viti to eradicate the iguanas.
BAF had been fighting a battle against the introduced species since they were first introduced to Fiji in 2010.