Freshwater

At the bottom of our lakes are NIWA divers with waterproof clipboards. Sarah Fraser jumps in to find out what they’re doing.

Taonga species such as tuna (freshwater eels), kōura (freshwater crayfish) and kākahi (freshwater mussels) are central to the identity and wellbeing of many Māori.

Visitors to NIWA’s stand at this year’s Fieldays are invited to go diving into the Rotorua lakes—without having to get wet.

NIWA freshwater scientists are pinning their hopes of solving an age-old mystery on 10 female longfin eels who are about to begin an epic journey to their spawning grounds somewhere in the Pacific Ocean.

NIWA researchers are out on Lake Whakatipu for the next week mapping the lake floor for the first time.

The latest state of the environment report released today provides New Zealanders with clear evidence that our climate, freshwater and marine systems are changing, says NIWA.

Instructions for using Nalgene Storm Water Sampler bottles and DGTs.

The guidance manual provides methods for sampling urban streams and stormwater

Video guides for installing the Nalgene Bottles and DGT's

Water quality in urban streams and stormwater systems is frequently poor and highly variable, across both space and time. Traditional monthly grab sampling is rarely adequate to characterise contaminant concentrations during wet weather events.

The tiny inanga have been plucked from Waikato streams and held in a darkened laboratory for the last month, undertaking highly advanced testing to find the strongest, fittest and fastest fish.