Freshwater

Plants and trees along the water margins and banks are called riparian vegetation.

Kōaro are excellent climbers and like clear, swiftly flowing, forested streams.

How do nutrients from wastewater treatment enter waterways?

This identification guide covers the common crustose coralline algae found in central New Zealand.

What are the potential sources of chemical contamination from aquaculture activities?

Estuaries are at the bottom of the freshwater drainage network and, effectively, are a part of it. This means that every time we act to protect and enhance streams and rivers we are also benefiting the estuary at the downstream end.

Here are some simple steps to minimise the effects of dairying on water quality and mahinga kai.

All species of freshwater tuna spawn at sea, although the spawning grounds of only four species are known with certainty worldwide.

Impacts of timber processing activities on water quality and mahinga kai.

There are two species of kōura or freshwater crayfish in Aotearoa.

El Niño accounts for less than 25 percent of the year-to year variance in seasonal rainfall and temperature at most locations in New Zealand, however its effects can be significant.