Onepoto Intertidal Site A is located on the Onepoto intertidal area just south of the estuary mouth and is the site closest to the sea. It is monitored for metals, sediment nutrients and muddiness every five years.
Patches of seagrass grow here, but their density appears to be declining over time. Although usually sparse, there have been blooms of green mat-forming seaweed near this site.
Monitored site results
This dashboard shows information on the data collected by the regional councils and unitary authorities for the Estuary health scientific indicators, click the tiles for more information: