Lake water quality, 2009–13

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Creative Commons Attribution 3.0 New Zealand

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358
24
Added
17 Feb 2016

This dataset was first added to MfE Data Service on 17 Feb 2016.

"The Lake Trophic Level Index (TLI) characterises the life supporting capacity of a lake based on nutrient enrichment. In general, the higher the TLI score, the poorer the water quality in the lake. Lakes with extremely poor quality are rarely suitable for recreation and provide poor quality habitat for aquatic species.
Care should be taken when interpreting these results. Monitored lakes consist of about 4 percent of all New Zealand lakes, and programmes may focus on those that have poor water quality or are at risk due to the type of land use in their catchment.
After checking for data consistency, the lakes considered suitable for national comparison are sparsely and unevenly distributed, with gaps in the Manawatu, Taranaki, Tasman, Marlborough, Otago, and West Coast regions. The lakes considered in the analysis are located mainly in Northland, Bay of Plenty, Hawke’s Bay, and Canterbury.
This dataset relates to the ""Lake water quality: trophic level index"" measure on the Environmental Indicators, Te taiao Aotearoa website.
"

License

Creative Commons Attribution 3.0 New Zealand

You may use this work for commercial purposes.

You must attribute the creator in your own works.

Attachments
1. Lake water quality, 2009 13 188 KB pdf
Technical Details
Layer ID 53310
Data type Vector point
Feature count 86
Attributes sID, npID, Nsamples, Censored, Nyears, Q0_05, Q0_2, Q0_5, Q0_8, Q0_95, lakename, rcid, nzreach, nzmge, nzmgn, alt_bin, maxdepth, depth_bin, laketype, LakeCat, Trophic_state
Services Vector Query API, Web Feature Service (WFS), Catalog Service (CS-W), data.govt.nz Atom Feed
History
Added 17 Feb 2016
Last updated 17 Feb 2016
Revisions 2 - Browse all revisions
Current revision Imported on Feb. 18, 2016 from File Geodatabase in NZGD2000 / New Zealand Transverse Mercator 2000.

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