Mangrove Monitoring

Part of our philosophy is to initiate research on topics affecting the harbour where we see data and knowledge gaps. We have been undertaking mangrove reseeding research with NIWA, which has been underway around Mangere Inlet for over a year. One of our local high school students, Tama Elliott, won Science Fair awards for his work as part of this research.

During the year, NIWA has expanded the scope of the research and MHRS has recently agreed to continue working with NIWA to extend the study to December. This will allow us to compare data from the previous year to corroborate our findings. All the MHRS time is donated and we thank the volunteers who show up the first Saturday of every month to count and measure.


We continue to seek funding for equipment hire and supplies to enable us to remove more mangroves from the Mangere Inlet in accordance with our resource consent. If you would like to DONATE CLICK HERE


If you are interested in volunteering to help with mangrove research; collecting samples and counting seedlings please CONTACT US HERE


Our mangrove and monitoring program with NIWA will continue through autumn and winter. We would love to have you join us. We can always use more volunteers. It doesn’t take long to do, it’s a lot of fun getting out in the mud, and you can feel good about your contribution to science – and helping the 2 Onehunga High School students who are conducting science projects in conjunction with our work.

For the next 2 months the sessions have been scheduled for the 1st Saturday of the month on these dates:


June 1: 10:00 am

July 6:   1:30pm


Where to meet:

In the parking area off Onehunga Harbour Rd under the highway bridge. We will start at the Onehunga monitoring site and then move over to the Mangere Bridge site.

What to bring:

Wear gumboots, wetsuit booties, old athletic shoes and other clothing suitable for walking out into the mud flats. (Please no jandals).

Water to drink and a towel to clean yourself up afterwards

Sunscreen, hats and other gear suitable for the weather that day