Appendix 5: Macroinvertebrate and Stream Ecological Valuation Data Boffa Miskell Ltd | Waihi North Project: Freshwater Ecological Assessment | Northern Rock Stack – Stream TB1 Table 5-5:SEV attribute values from sites TB1_lower and TB1_Upper. Function TB1_lower TB1_upper Natural Flow Regime 0.77 0.68 Floodplain Effectiveness 0.55 0.12 Connectivity for natural species migrations 1.00 1.00 Natural connectivity to groundwater 0.68 0.80 Hydraulic Functions 0.75 0.65 Water temperature control 0.28 0.24 Dissolved oxygen levels 0.50 0.50 Organic matter input 0.50 0.00 Instream particle retention 0.56 0.76 Decontamination of pollutants 0.51 0.33 Biogeochemical Functions 0.47 0.37 Fish Spawning Habitat 0.05 0.05 Habitat for aquatic fauna 0.39 0.32 Habitat Provisions Functions 0.22 0.18 Fish Fauna Intact 0.30 0.30 Invertebrate Fauna Intact 0.61 0.54 Riparian Vegetation Intact 0.30 0.10 Biodiversity Provision Functions 0.40 0.31 SEV Score 0.501 0.409
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