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Te Hiku o te Tuna at Opposite Brown Rd

Ecology
Ecological data for this site

This dashboard shows the result of macroinvertebrate sampling at this site.  It displays three measures, macroinvertebrate community index, taxanomic richness and percent EPT

If 'N/A' is showing, there are not enough data to calculate a 5-year median.  You can select the 'Show more information+' box under each measure to see the available historic data.

  • MCI

    Quality class based on MCI score
    The median of the last 5 years of data

    {{MciText | uppercase}}

    The Macroinvertebrate Community Index uses aquatic macroinvertebrates to assess the health of streams in New Zealand.
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    MCI sample history at this site

    Showing:
    MCI for Te Hiku o te Tuna at Opposite Brown Rd
    MCI score

    What do the icons mean?

    EXCELLENT
    MCI score of more than 119. Streams in excellent ecological condition. Indicative of excellent water quality and/or habitat conditions.
    GOOD
    MCI between 100 and 119. Streams in good ecological condition. Indicative of good water quality and/or habitat conditions.
    FAIR
    MCI between 80 and 99. Streams in fair ecological condition. Indicative of only fair water quality and/or habitat condition.
    POOR
    MCI less than 80. Streams in poor ecological condition. Indicative of poor water quality and/or poor habitat conditions.
  • Taxonomic richness

    The median of the last 5 years of data

    {{medians.TaxaMedian || 'N/A'}}
    Taxonomic richness is the number of different taxa present in an ecological community identified to the best possible level.
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    Taxa richness history at this site

    Showing:
    Taxa richness for Te Hiku o te Tuna at Opposite Brown Rd
    Number of taxa
  • Percent EPT richness

    The median of the last 5 years of data

    {{medians.EptMedian || 'N/A'}}
    EPT are macroinvertebrates that are sensitive to water pollution. These are Ephemeroptera (mayfly), Plecoptera (stonefly) and Trichoptera (caddisfly).
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    EPT history at this site

    Showing:
    Percent EPT richness for Te Hiku o te Tuna at Opposite Brown Rd
    EPT %
Can I trust this data?

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.

Can I trust the data for this site?
Data Collection

Macroinvertebrates are sampled at this site as part of council's stream health monitoring programme, as recommended by proposed national guidelines.

Sampling - Frequency

Macroinvertebrate sampling is done annually or more frequently at this site as recommended by proposed national guidelines. Therefore, data shown here follow current best practice guidelines.

Sampling - Protocols

This site is a hard-bottomed site and appropriate sampling protocols have been applied.  Data shown here have been collected using current best-practice.

Sampling - Habitat

Macroinvertebrate sampling is done in riffle habitat at this site. Data shown here are therefore following best practice.

Sampling - Stand-down period

This council does not collect any macroinvertebrate samples for up to two weeks after a flood greater than three times the median flow as recommended by proposed national guidelines. Therefore, data collected at this site is following best practice.

Processing - Protocol

Samples at this site have been processed following sampling potocols P2 or P3 and data have been processed following best practice.

Quality Control - Field

Field data collected at this site had no quality control applied to it.

Quality Control - Lab

Data processed at this site has had no laboratory quality control applied.  Data shown here is less robust than data with no laboratory QC applied and conclusions based on this data need to be treated with caution.

Recreational activities
Site suitable for these activities
  • Activity
    No information available

Rivers and Lakes are great natural  playgrounds but they can be unpredictable. Be aware of the other potential risks before jumping in.

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