Welcome to NIWA Lake Submerged Plant Indicators
LakeSPI (Lake Submerged Plant Indicators) is a lake information and management tool used to assess and report on the ecological condition of New Zealand Lakes.
  • Learn more about the ecological condition of your lake.
  • Discover which submerged plants are growing in your lake.
  • Follow changes occuring in your lake over time.
  • For lake managers, LakeSPI has many other uses.

Use the map to zoom in on a lake. Search for a lake by name or search for a lake meeting specific criteria. Click on a map marker or the lake name in the results list to go to the lake report card.

More about LakeSPI.

Lake name
Lake Type
Lake size
Lake Max Depth
LakeSPI Categories

LakeSPI Condition

  • Excellent
  • High
  • Moderate
  • Poor
  • Non-vegetated
Lake Status Date LakeSPI % Native Condition % Invasive Impact %