Lake Tikitapu (Blue Lake)
- Current Lake SPI Condition
- High
- Maximum Depth
- 27.5m
- Size
- 1.44km²
- Lake Type
- Volcanic
- FENZ#
- 15312
- Notes
- Slightly unusual water chemistry (low alkalinity) may account for reduced plant abundance and vigour.
Results Overview February 2026
| Survey Date | Status | LakeSPI % | Native Condition % | Invasive Impact % |
|---|---|---|---|---|
| February 2026 | High | 57.6% | 62% | 44.4% |
| March 2022 | High | 60.4% | 60% | 34.8% |
| April 2021 | Moderate | 38.4% | 28% | 47.4% |
| April 2021 | Moderate | 36.8% | 24.7% | 47.4% |
| March 2018 | Moderate | 31.6% | 22% | 59.3% |
| May 2016 | Moderate | 44.4% | 40% | 45.9% |
| March 2014 | Moderate | 45.2% | 36.7% | 40% |
| February 2012 | Moderate | 41.2% | 32.7% | 48.1% |
| April 2010 | Moderate | 34.4% | 24% | 48.9% |
| March 2008 | Moderate | 31.6% | 28% | 63% |
| February 2005 | Moderate | 47.6% | 47.3% | 49.6% |
| February 2001 | High | 57% | 51.7% | 33.3% |
| November 1988 | High | 63.2% | 74.7% | 46.7% |