68 Table 23: Summary statistics for macroinvertebrate samples from the Ohinemuri River at SH25, 19942021. Data provided courtesy of Waikato Regional Council. Sample Date Taxa number Abundance# EPT %EPT abundance MCI22 Dec-94 13 100 7 73 110 Dec-95 9 100 1 2 73 Sep-97 17 100 8 12 112 Mar-99 9 111 2 14 80 Jan-00 11 127 4 11 85 Dec-00 17 137 6 25 81 Feb-02 15 227 4 23 69 Feb-03 9 212 2 10 76 Jan-04 16 204 4 18 85 Jan-05 16 222 7 19 106 Jan-06 24 219 12 45 100 Feb-07 22 218 6 31 84 Feb-08 15 200 5 34 80 Jan-09 28 229 8 31 82 Mar-11 20 215 8 21 88 Feb-12 26 221 9 24 86 Jan-14 25 248 9 29 94 Mar-15 20 234 7 17 81 Apr-17 22 215 10 24 94 Jan-18 25 293 10 40 96 Jan-19 20 206 6 30 87 Feb-20 27 397 7 26 81 Sept-21 24 266 8 35 87 #Note different subsampling methods have been used over the record to estimate abundance. 22 NPSFM 2020: Where macroinvertebrates are selected as a target value attribute by Regional Councils, the National Bottom Line for MCI is 90, and for QMCI is 4.5.
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