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Submerged plants as bio-indicators
Submerged plants have a number of advantages that favour their use as indicators of lake ecological condition. -
Q&A - Bloomin' algae!
Feature story06 June 2017A 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
Education ResourceTsunami is a Japanese word meaning great wave in harbour. -
Identification guides
Useful information and resources on New Zealand's marine flora and invertebrate fauna. -
Sea level observations (near real-time)
ServiceThis system combines daily sea-level data from NIWA, regional councils, port companies, Antarctica NZ, Bureau of Meteorology and territorial authorities. -
What ails our estuaries - problems and solutions
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. -
Estuary origins
In comparison to the vast span of geological time, the estuaries that we see today are very recent coastal features. -
Estuaries
Education ResourceAn estuary is a partially enclosed body of water formed where freshwater from the land meets and mixes with saltwater from the ocean.