Atmospheric analysis

Once you have identified the problem, and applied the necessary tools for restoring kōura to your stream, the next phase of your project is to monitor the site to see whether restoration works.

The tools available for restoring kōura to lakes and streams depend on what is causing kōura to decline.

An update describing soil moisture across the country to help assess whether severely to extremely dry conditions are occurring or imminent.

This year is the 2400th anniversary of the birth of Aristotle, a philosopher and scientist (384 BCE), who among other many great achievements was the first person to describe the structure, ecology, and diversity of sea urchins – way back in the 4th century BC.

Habitat and biological factors factors affect why kōura rare or absent in your waterway.

First, determine if kōura should be present in your stream.

This is a special series of stories put out to the media in the 2016/2017 summer.

Identifying the factors causing kōura numbers to decline will allow you to determine which restoration tools you need to employ.

Habitat degradation and the introduction of exotic plant and fish species have adversely affected kōura populations throughout New Zealand. However, there are a number of measures that we can use to restore kōura populations in lakes, rivers and streams.

A year is a short time in science but a lot happened in 2016. NIWA highlights its top scientific endeavours of the past 12 months.

A new fully illustrated electronic identification guide, Bountiful Bryozoans, has just been released to help people identify this group of marine creatures in the wild.

New research has revealed that citizen science monitoring of water is a win-win for scientists and volunteers—one gains access to new data, and the other the skills and confidence to become involved in discussions over what is happening to their streams.