TWO female American iguanas were caught last week on the island of Qamea in Taveuni.
Biosecurity Authority of Fiji chief executive officer Matai Matakitoga said the nesting period from August to October would help his team capture the reptile.
"As August to October is the American iguana nesting period, we are expecting more iguanas to be caught at this time.
"The nesting period is an ideal time to capture American iguanas because this is when they are most visible and vulnerable," he said.
"The females migrate from their inland forest habitat to coastal areas to lay eggs in sandy and well drained soil.
"Otherwise it is extremely difficult to catch the American iguanas as they mostly dwell on tree tops, are well camouflaged and have excellent eye and hearing senses, thus they are able to avoid detection and capture. They are also excellent swimmers and when threatened will dive into the water or sea from their tree perch and swim rapidly away."
Mr Matakitoga said reports from his biosecurity officers based on Qamea stated that the pregnant American iguanas had migrated from the forest to shore to lay their eggs along the sandy shoreline and riverbanks. One of the iguanas was caught on Tuesday on Niubavu Settlement and the second on Thursday at Namata Estate.
BAF launched a new strategy on the American Iguana in June this year as a way of preventing the spread of the reptile and eradicate the pest that is threatening agriculture, tourism, food security, biodiversity and livelihood of the community, if not addressed quickly.