The Omaguas harvested their crops from the island mud - flats as well as from their swiddens ; .
Omaguas stored manioc underground in ingeniously covered pits , to be covered over by the flood and then eaten during the next planting season .
The Omaguas harvested their crops from the island mud - flats as well as from their swiddens ; and they stored manioc underground in ingeniously covered pits , to be covered over by the flood and then eaten during the next planting season .