Living in Omahu, Aggie Nuku was surrounded by Oingo Lake, Runanga Lake and Lake Ohiti - all freshwater lakes that paopao would inhabit. However, with only 2 per cent of wetlands remaining today (compared to original numbers) paopao has become scarce.
Paopao has been recorded historically on Te Mata Peak in a wetland that once existed there, and was once in Lake Tutira (it was decimated when carp were introduced to manage the invasive aquatic weed hydrilla), yet, some remnant populations can still be found throughout the rohe.
Of course, beyond its usefulness to us, paopao plays an important part in freshwater ecosystems. The dense mats of rhizomes and roots in its beds help to stabilise bottom sediments and therefore assist in maintaining good water clarity. The tall hollow stems efficiently pump oxygen down to the rhizomes and sediment, and transport waste gases up from bottom sediments and release them back into the atmosphere.
• The above is an extract from Te Pūtake o te Wao Nui – A place-based review of traditional ecological knowledge by Tyne-Marie Nelson, supported by Predator Free HB.