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River Environment Classification REC2
The River Environment Classification (REC) is a database of catchment spatial attributes, summarised for every segment in New Zealand's network of rivers. -
Virtual Climate Station data and products
Virtual climate station estimates are produced every day, based on the spatial interpolation of actual data observations made at climate stations located around the country. -
Cropping activities
The land used to produce crops is usually flat to gently rolling so it can be tilled, sowed, and harvested. -
Northland
Northland, with its northern location, low elevation and close proximity to the sea is characterised by a mild, humid, and rather windy climate. -
Tuna aquaculture - New Zealand
New Zealand's first eel farm was established in 1971. Despite other farms opening in later years, no eel farms remained by the start of the 1980s. -
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. -
Giant kōkopu
The largest member of the Galaxiidae family. -
Sediment and mining
How can mining activities influence sediments in waterways? -
Mitigation and best practice options
Some simple steps to minimise the effects of aquaculture activities on water quality and mahinga kai. -
Mahinga kai and migration
A high proportion of New Zealand’s native freshwater fish fauna need to migrate to and from the sea.