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Station details
Station height is in metres above mean sea level. Years of data are the number of complete years of data for the 1981 – 2010 period. -
New Zealand bathymetry - Further information
Technical information about our datasets and methodology along with related resources. -
Tuna - tuna heke (downstream migrants)
Once eels become migrants (also known as tuna heke or tuna whakaheke) they stop feeding, and progressively develop the external features that clearly distinguish them from 'feeders'. -
Map North
Education ResourceThis is a sub-tropical climate zone, with warm humid summers and mild winters. -
Climate change scenarios for New Zealand
Research ProjectProjections of how climate change is likely to affect New Zealand. -
Sea-level rise
Education ResourceOne of the major consequences of climate change is rising global sea levels. -
Layers of the atmosphere
Education ResourceThe atmosphere is comprised of layers based on temperature. These layers are the troposphere, stratosphere, mesosphere and thermosphere. -
El Niño maps and charts
View a collection of maps showing the impact of past El Niño and La Niña events. -
Dry stock farming activities
Dry stock farms can cover large areas of hill-country grassland that may be steep and prone to erosion. -
Biological limitations
Identifying biological factors that may be limiting fish numbers requires sampling to ensure that key invertebrate prey species are not scarce and that pest fish, especially predators, are not abundant.