Freshwater

IrriSET helps farmers to understand the economic viability and environmental efficiency of various irrigation strategies and prioritise their irrigation investments.

Nutrients, sediment, and microbial contaminants are mobilized from urban and agricultural landscapes and enter streams, rivers, lakes and estuaries. These contaminants can degrade water quality, ecological health, and cultural values.

These booklets help provide guidance on the cultivation and restoration of native submerged macrophytes for environmental rehabilitation initiatives in freshwater and saltwater environments.

A new tool giving near real-time snow data has been made available to the public for the first time.

NIWA has updated and restarted a course using a riparian planning tool developed by one of its former chief scientists more than 20 years ago.

Estuaries are coastal waterbodies where freshwater mixes with seawater. Many estuaries in Aotearoa New Zealand have been impacted by pollutants and contaminants entering via freshwater.

New Zealand has just over 50 native freshwater fish species. Of these, 85 % are endemic and 75 % are deemed to be at risk of decline or are threatened.

Our highest elevation site at 2128 m, Mt Potts is also one our sites very exposed to wind.

The Upper Rakaia SIN site is located at 1752 m on a north facing slope in the Jollie Range. Records start in 2010.

The Albert Burn SIN site is located at 1280 m in the upper Albert Burn valley, east of Mt Aspiring/Tititea. Records start in 2012.

The Ivory Glacier SIN site is located at 1390 m next to Ivory Lake, west of the main divide of the Southern Alps/ Kā Tiritiri Te Moana.

A four-year research programme focused on the co-management and restoration of our freshwater taonga species.