U:\2021\BM210482_IBo_Waihi_North_Project\Documents\WNP_Freshwater_Report_May_2022\FINAL_Freshwater_Report_FOR DELIVERY_June 2022\FINAL DELIVERED 17 JUNE 2022\WAI-985-000-REP-LC-0007_Rev0_Freshwater_20220621_FINAL.docx a) Warm spring. Point of emergence. b) Warm spring fall into Wharekirauponga Stream. Figure 5: Warm water spring within Wharekirauponga Stream catchment. a) Point of emergence with presence of orange algae. b) the discharge over a small fall into the main stem of the Wharekirauponga Stream. Table 7: Aquatic macroinvertebrate metrics for two samples collected within the warm spring, Wharekirauponga Stream, 2020. Metric Warm spring sample a Warm spring sample b Total abundance 59 23 Number of taxa 20 4 Number of EPT taxa 7 0 MCI score 95 65 QMCI 4 3.9 7.3.7 Summary of Ecological Values The freshwater habitats surveyed within the Wharekirauponga Stream and Teawaotemutu Stream are of high ecological value. All habitats are classified as significant, providing habitat and migratory pathways to a number of Threatened and At Risk native fish species (WRC 2016) Habitats support a diverse community of native flora and fauna including Threatened and At Risk fish species and sensitive macroinvertebrate taxa. Measured water physiochemistry parameters at the time of sampling demonstrated good ecosystem functionality. Periphyton communities were abundant in taxa and indicative of good quality streams. Macroinvertebrate communities were diverse in sensitive EPT taxa, with QMCI scores all excellent. Fish communities supported a number of Threatened and At Risk species with habitats also providing important migratory pathways.
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