Temperature trends from 1930s to present day

Commercial eel fishery in New Zealand began in earnest in the 1960s and expanded rapidly until the early 1970s

Ocean acidification is the name given to the lowering of pH of the oceans as a result of increasing carbon dioxide (CO2) in the atmosphere.

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.

Southland is both the most southerly and most westerly part of New Zealand and generally is the first to be influenced by weather systems moving onto the country from the west or south.

Instream barriers and diversions alter the natural flow of rivers, streams, and lakes.

Dry stock farms can cover large areas of hill-country grassland that may be steep and prone to erosion.

How do I create a graph?
Using Microsoft® Excel is easy because the Chart Wizard does all the work for you!
Simply enter the data for your data table.
Highlight the cells you want to graph.
Click on the Chart Wizard icon on the Tool Bar.
Select the chart type you want to use and click Next.
Click Next to confirm the range of cells.
Give your graph a title, label x- and y-axis and click Next.
Click on the gridlines tab to remove or add gridlines.
Click Finish and graph is complete!
Help, my graph is too small!
When the chart wizard creates your graph it will probably be too smal

NIWA oceanographer Dr Cliff Law explains the impacts of ocean acidification on organisms that use carbonates to build their shells, and on bacteria.

Today's UV Index