River and stream water quality and ecology - Greater Wellington ...

River and stream water quality and ecology in the Wellington region: State and trends
Macroinvertebrates
Summary of Spearman Rank results for four macroinvertebrate metrics assessed at 55
RSoE sites (2004–2011). rs=Spearman correlation co-efficient. p-values in italics indicate
‘possible’ trends, while values in bold indicate ‘probable’ trends and values that are bold
and underlined indicate ‘clear’ trends (refer to Section 6.2 for further details)
Site
no.
Site name
QMCI
rs p
MCI
rs . p
%EPT taxa
rs p
%EPT individuals
rs p
n
RS02 Mangapouri S at Bennetts Rd -0.690 0.047 0.731 0.029 0.180 0.619 0.381 0.321 8
RS03 Waitohu S at Forest Pk 0.310 0.423 0.429 0.260 0.333 0.387 0.833 0.005 8
RS04 Waitohu S at Norfolk Cres 0.262 0.498 0.071 0.839 0.143 0.705 0.333 0.387 8
RS05 Otaki R at Pukehinau 0.143 0.705 -0.286 0.460 -0.108 0.749 0.214 0.578 8
RS06 Otaki R at Mouth 0.071 0.839 -0.012 0.931 0.157 0.662 0.429 0.260 8
RS07 Mangaone S at Sims Rd Br -0.548 0.139 -0.310 0.423 -0.506 0.182 -0.443 0.233 8
RS08 Ngarara S at Field Way 0.048 0.885 0.238 0.537 0.133 0.705 -0.060 0.839 8
RS09 Waikanae R at Mangaone Walkway 0.405 0.290 -0.310 0.423 -0.262 0.498 0.167 0.662 8
RS10 Waikanae R at Greenaway Rd -0.333 0.387 -0.214 0.578 -0.095 0.794 -0.310 0.423 8
RS11 Whareroa S at Waterfall Rd -0.548 0.139 -0.810 0.010 -0.857 0.002 -0.762 0.021 8
RS12 Whareroa S at QE Park 0.548 0.139 -0.024 0.931 -0.263 0.498 -0.190 0.619 8
RS13 Horokiri S at Snodgrass -0.381 0.321 0.096 0.794 -0.049 0.885 0.143 0.705 8
RS14 Pauatahanui S at Elmwood Br 0.071 0.839 0.619 0.086 0.587 0.102 0.595 0.102 8
RS15 Porirua S at Glenside 0.167 0.662 -0.548 0.139 -0.571 0.120 -0.167 0.662 8
RS16 Porirua S at Wall Park (Milk Depot) 0.286 0.460 -0.619 0.086 -0.443 0.233 -0.238 0.537 8
RS17 Makara S at Kennels 0.310 0.423 0.595 0.102 0.563 0.120 0.000 0.977 8
RS18 Karori S at Makara Peak 0.048 0.885 -0.571 0.120 -0.595 0.102 0.190 0.619 8
RS19 Kaiwharawhara S at Ngaio Gorge -0.571 0.120 -0.405 0.290 -0.405 0.290 0.262 0.498 8
RS20 Hutt R at Te Marua Intake Site 0.429 0.260 -0.143 0.705 -0.299 0.423 0.286 0.460 7
RS21 Hutt R opp. Manor Park G.C. -0.548 0.139 -0.214 0.578 -0.060 0.839 -0.548 0.139 7
RS22 Hutt R at Boulcott -0.405 0.290 -0.524 0.160 -0.539 0.139 -0.429 0.260 7
RS23 Pakuratahi R 50m d/s Farm Ck -0.310 0.423 -0.548 0.139 -0.500 0.182 -0.548 0.139 8
RS24 Mangaroa R at Te Marua -0.238 0.537 -0.190 0.619 -0.240 0.537 -0.619 0.086 8
RS25 Akatarawa R at Hutt R confl. -0.524 0.160 -0.619 0.086 -0.643 0.072 -0.643 0.072 8
RS26 Whakatikei R at Riverstone -0.548 0.139 0.167 0.662 0.000 0.977 -0.405 0.290 8
RS27 Waiwhetu S at Wainui Hill Br -0.024 0.931 -0.762 0.021 -0.683 0.047 -0.275 0.460 8
RS28 Wainuiomata R at Manuka Track -0.643 0.072 0.095 0.794 0.071 0.839 -0.952 0.000 8
RS29 Wainuiomata R u/s of White Br 0.071 0.839 -0.262 0.498 -0.359 0.353 0.024 0.931 8
RS30 Orongorongo R at Orongorongo Stn -0.095 0.794 0.238 0.537 -0.143 0.705 0.238 0.537 8
RS31 Ruamahanga R at McLays 0.476 0.207 0.143 0.705 0.371 0.321 0.238 0.537 8
RS32 Ruamahanga R at Te Ore Ore -0.143 0.705 0.000 0.977 0.405 0.290 0.595 0.102 8
RS33 Ruamahanga R at Gladstone Br 0.095 0.794 -0.833 0.005 -0.667 0.059 0.500 0.182 8
RS34 Ruamahanga R at Pukio 0.595 0.102 -0.647 0.072 -0.230 0.537 0.738 0.029 8
RS35 Mataikona Trib at Sugar Loaf Rd 0.119 0.749 0.167 0.662 0.310 0.423 0.048 0.885 8
RS36 Taueru R at Castlehill 0.214 0.578 -0.286 0.460 0.238 0.537 -0.476 0.207 8
RS37 Taueru R at Gladstone -0.690 0.047 -0.286 0.460 -0.310 0.423 -0.333 0.387 8
RS38 Kopuaranga R at Stewarts -0.762 0.021 -0.786 0.015 -0.695 0.047 -0.381 0.321 8
RS39 Whangaehu R 250m u/s confl. -0.571 0.120 -0.429 0.260 -0.714 0.037 -0.143 0.705 8
RS40 Waipoua R at Colombo Rd Br -0.833 0.005 0.024 0.931 0.119 0.749 -0.452 0.233 8
RS41 Waingawa R at South Rd -0.381 0.321 -0.905 0.000 -0.738 0.029 -0.167 0.662 8
RS42 Whareama R at Gauge -0.286 0.460 -0.167 0.662 0.048 0.885 -0.048 0.885 8
RS43 Motuwaireka S at Headwaters 0.095 0.794 -0.095 0.794 0.405 0.290 -0.452 0.233 8
RS44 Totara S at Stronvar -0.476 0.207 -0.619 0.086 -0.429 0.260 0.048 0.885 8
RS45 Parkvale Trib at Lowes Res. -0.500 0.182 0.071 0.839 0.419 0.260 -0.071 0.839 8
RS46 Parkvale S at Weir -0.762 0.021 0.095 0.794 0.143 0.705 0.333 0.387 8
RS47 Waiohine R at Gorge 0.357 0.353 -0.143 0.705 -0.204 0.578 0.690 0.047 8
RS48 Waiohine R at Bicknells -0.286 0.460 0.190 0.619 0.286 0.460 0.238 0.537 8
RS49 Beef Ck at Headwaters -0.595 0.102 -0.476 0.207 -0.333 0.387 -0.738 0.029 8
RS50 Mangatarere S at SH 2 -0.833 0.005 -0.643 0.072 -0.571 0.120 -0.119 0.749 8
RS51 Huangarua R at Ponatahi Br -0.643 0.072 -0.548 0.139 -0.238 0.537 0.119 0.749 8
RS52 Tauanui R at Whakatomotomo Rd 0.190 0.619 0.286 0.460 0.476 0.207 0.667 0.059 8
RS53 Awhea R at Tora Rd -0.167 0.662 -0.167 0.662 -0.167 0.662 -0.357 0.353 8
RS54 Coles Ck Trib at Lagoon Hill Rd -0.214 0.602 -0.107 0.781 -0.107 0.781 -0.286 0.491 7
RS55 Tauherenikau R at Websters 0.048 0.885 -0.286 0.460 -0.443 0.233 0.119 0.749 8
RS56 Waiorongomai R at Forest Pk -0.524 0.160 -0.048 0.885 0.119 0.749 -0.214 0.578 8
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