Pest Plants

The Ōpāwaho Heathcote River Network has published two free posters. Armed with these, you can play a role in combating the ecological effects of weeds...

Source of Sediment

After heavy rain, the Ōpāwaho Heathcote River runs an uninviting shade of brown. If you trace the flow upstream, the trail leads to very clear culprit...

Tidal Barrier Revisited

The proposal for a tidal barrier to prevent flooding has been revived. We look at the issues it raises.

Eradicating Glyceria

This November, the Ōpāwaho Heathcote River Network commences a programme to eradicate a pest plant before it takes over much of the riverbank and chok...

The Other Whitebaiting Rules

The rules for whitebaiting have changed a little, but there are some other whitebaiting rules which have never changed.

Help Bring Back the Birds

We need your help! We are launching an initiative to control rats and mice along the riverbank, creating a habitat in which our native birds can retur...

King Tides

The lower Ōpāwaho Heathcote River was higher than normal recently – it was a time of king tides.

Riparian Change

Efforts are being made to improve water quality and to reform the river's urban-impacted riparian margins.