These data incorporate the results of water quality monitoring carried out for the purpose of creating a calibration data set for establishing diatom species optima with regard to key water quality parameters

Nine replicate quantitative samples were collected from 3 sites in the lower Waiau River as part of Meridian Energy's consent conditions, and 9 samples from a comparison site in the Mararoa River above the Manapouri Diversion. Samples have been collected annually (roughly) since 1997. A fourth site in the Lower Waiau (Weir) was surveyed up until 2002, after which the Mararoa site was added. Average abundance (9 samples pooled) of each taxon encounted at each site / date combination is reported on a 1 (rare) to 5 (abundant) scale.

Comprises plant survey results for 206 lakes, over 17,500 plant records, using survey method of Clayton (1983), and other supporting information vegetation surveys

These macro-invertebrate data incorporate the results from the national river water quality network (NRWQN) from 66 sites throughout New Zealand for the purpose of monitoring long-term trends. The NRWQN was funded by the Foundation for Research, Science, & Technology through NIWA's Nationally Significant Database: Water Resources & Climate programme. Current funding (from July 2011) comes from the NIWA Environmental Information/Monitoring programme core funding. The data are collected annually in summer, and data collection was initiated in January 1989.

These samples were collected from three locations in the Waimakariri River as part of a biodiversity survey. Subsamples were examined at x400 and an assessment made of the relative abundance of the main taxa present, on a scale of 1 (rare) to 8 (dominant). Identifications are to genus level, and to species level for some of the diatoms.

Freshwater invertebrates collected semi-quantitatively from wetlands (e.g. bogs, fens, swamps) below an altitude of 250 m, and which are subject to a range of anthropogenic pressures (i.e. relatively pristine to heavily impacted). At the scale of each wetland, environmental information was collected; then, within each wetland an average of 3 (but up to 6) different water bodies (i.e. sites) were sampled with water quality parameters measured at each site; and at each site, two 'replicate' invertebrate samples were collected (i.e. A and B samples).

These data incorporate the results of water quality monitoring of lakes in the Rotorua region by Environment Bay of Plenty for the purpose of state of the environment reporting

Comprises over 2,000 invasive plant survey results held by the Department of Conservation, New Zealand herbaria, and regional councils. The Pest Status and Aquatic Weed Risk Assessment Ranking of invasive plant species are also recorded.

Aquatic macroinvertebrate life history, physiological and habitat information for New Zealand taxa

These data are derived from diatom samples collected from throughout New Zealand from 1997 to 2004, from a broad range of freshwater habitats, as part of investigations into diversity patterns in freshwater diatoms