This dashboard shows information on macroinvertebrate data collected by regional councils and unitary authorities. Select an indicator to see the available historical results.
Select a time period
- 10 years
- 15 years
State
Attribute BandTrend
Sample history at this site
What is this graph showing me?
This graph is displaying MCI scores over the selected time period. You can adjust this period by changing the dropdowns. These records for the basis for the state and trends displayed on the dashboard.
Find out about how State and Trend are calculated.
What do the attribute band icons mean?
The bands for MCI are as outlined in the National Policy Statement for Freshwater Management 2020
State
Attribute BandTrend
Sample history at this site
What is this graph showing me?
This graph is displaying QMCI scores over the selected time period. You can adjust this period by changing the dropdowns. These records for the basis for the state and trends displayed on the dashboard.
Find out about how State and Trend are calculated.
What do the attribute band icons mean?
The bands for QMCI are as outlined in the National Policy Statement for Freshwater Management 2020
State
Attribute BandTrend
Sample history at this site
What is this graph showing me?
This graph is displaying ASPM scores over the selected time period. You can adjust this period by changing the dropdowns. These records for the basis for the state and trends displayed on the dashboard.
Find out about how State and Trend are calculated.
What do the attribute band icons mean?
The bands for ASPM are as outlined in the National Policy Statement for Freshwater Management 2020
The Cawthron Institute has worked alongside regional councils to verify the processes and methods used for macroinvertebrate data collection, processing of the data in the laboratory, quality control in the field and laboratory and the statistical analysis and interpretation of the results presented.
For more details on each tick, see our 'Can I Trust this Data?' Factsheet.
Macroinvertebrates are sampled at this site as part of council's stream health monitoring programme.
Macroinvertebrate sampling is done annually or more frequently at this site. Annual sampling provides enough data points for state and trend analyses to be calculated with sufficient statistical power for trend detection.
This site is a hard-bottomed site and appropriate sampling protocols have been applied. Data shown here have been collected using current best-practice based on Stark et al. (2001).
Macroinvertebrate sampling is done in riffle habitat at this site. Data shown here are therefore following best practice as described in Stark et al. (2001).
Macroinvertebrate samples are collected within the first two weeks after a flood greater than three times the median flow at this site. Stark et al. (2001) suggest a minimum of two weeks 'stand-down' period after a flood greater than three times the median flow. Therefore, data shown here is not following best practice and conclusions based on this data need to be treated with caution.
Samples at this site have been processed following sampling protocol P1 (semi-quantitative - coded abundance). Data shown here is not following best practice as described by Stark et al. (2001), but are still considered robust.
Field data collected at this site had no quality control applied to it.
Data processed at this site has had one of the three Laboratory Quality Control Protocols (i.e., QC1, QC2,Q C3) applied. Data shown here is more robust than data with no laboratory QC applied.