Coasts

Submerged plants have a number of advantages that favour their use as indicators of lake ecological condition.

A hot and steamy summer saw Kiwis heading down to rivers and lakes to cool off. But they weren’t the only ones enjoying the warmer weather – algae had a great time too.

Tsunami is a Japanese word meaning great wave in harbour.

Useful information and resources on New Zealand's marine flora and invertebrate fauna.

This system combines daily sea-level data from NIWA, regional councils, port companies, Antarctica NZ, Bureau of Meteorology and territorial authorities.

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.

Dog Island levels

In comparison to the vast span of geological time, the estuaries that we see today are very recent coastal features.

An estuary is a partially enclosed body of water formed where freshwater from the land meets and mixes with saltwater from the ocean.