Kyle StreamKyle Stream Assessment

Summary of report findings

The Kyle Stream catchment has only recently started to be developed from rural to residential landuse.  The predominantly rural landuse is expected to change to predominantly residential over the next 50 years.

Documents

Kyle Stream report PDF (1.1MB)
Kyle Stream maps (PDFs)

Links

North Shore stream assessments overview page

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Length

7.5km

Size Of Catchment 270ha
Vegetation Cover 42%
Imperviousness 6.4%
District Plan Land Use Recreation 1% (2ha)
Residential 45% (121ha)
Road 6% (17ha)
Special Purpose 29% (77ha)
Rural 18% (40ha)
Recreational Use Low
Receiving Environment Lucas Creek Estuary
Substrate Predominantly silt/mud
Natural Wetlands 0
Artificial Wetlands 6
Periphyton Generally acceptable or good, but some areas with excessive growth
Macrophytes Generally good but some excessive growth in two tributaries and the lower main channel
Macroinvertebrates Moderate number of taxa and high MCI score
Fish 7 species of native fish plus koura
Potential Man-Made Barriers to Fish Passage to Upstream Habitat 12 (plus three natural)
Channel Modification 75% bank lining of Tributary 8, 60% piping of Tributary 9, otherwise limited
Erosion around Structures 3 with slight erosion, 2 with moderate and 1 with severe
Bank Erosion Slight to moderate in most areas but severe in some tributaries
Temperature No information
Suspended Solids, Turbidity And Visual Clarity

Clarity 0.2m to 0.58m

Oxygen and Oxygen Demand No information
Nutrients 0.05 g/m3 ammonia
Contaminants No information
Bacteria and Pathogens No information
Sediment Quality No information
Debris

Relatively low

Stream Grouping Group 2, High value low disturbance 62%
Group 3a, Urban semi-modified 30%
Group 3b, Urban modified -
Group 4, Concrete lined channel 1
Group 5, Piped section 7