macroinvertebrate fauna surveys were undertaken in spring (October to
December) and summer (February to May). Since that time, surveys have been taken once a year during
summer (February to May), following recommendations from the previous annual report. The methodology
has remained relatively unchanged over time, and there are currently 67 sites monitored throughout 35
rivers and streams across the Taranaki region.
This annual report includes an assessment of Council’s macroinvertebrate data against
were markedly improved on the approach to the Piopio South Passing Lane, and
hazardous poplar trees were removed on outside of same curve.
Example - Awakino Gorge Guardrail (2006)
The guardrail was installed at the location of a number of crashes, and protects the corner for a distance
of approximately 400m. There was also some replacement of square kerbing with radial.
Mangaotaki Rockfall (2008)
Heavy rain triggered a large rock fall on
Taranaki Regional Council Annual Report 2019/2020
State of the Environment Report 2015
Ordinary Council Agenda Sept web v2
nitrogen
Table 11 presents estimates of total nitrogen concentrations translated to attribute bands for 67 Taranaki
lakes, from two models (Schallenburg et al. 2023 and Snelder et al. 2022). Because mixing regimes for all
Taranaki lakes have not yet been accurately classified, the estimates are assessed against the attribute criteria
for both seasonally stratified lakes, and polymictic lakes (the criteria for polymictic lakes being comparatively
less stringent, as shown in Table 1).