Floods are not unusual in New Zealand, but those that hit us early this winter broke records. Why did they occur? Should we expect more? Can we predict future floods?

Whitebait are the juveniles of five species of galaxiidae, a family of fish confined to the Southern Hemisphere.

Glass eels (about 5.5 to 7.0 cm) arrive in fresh water during spring, especially during September and October, although they may be present from July to December.

Chemical contaminants are chemicals toxic to plants and animals in waterways.

This weekly update helps assess likelihood of extremely dry weather preceding a drought.

New Zealand rushes (Juncus): species-level factsheets.

What are the sources of chemical contamination from wood processing?

A collection of ID guides to algae. Groups include major freshwater algal groups, diatoms and blue-green (cyanobacteria), red and green algae.

How may the activities of the mining industry influence water resources?

These datasets are available in a range of formats.

The topography of the North Island has a profound effect on the weather of the Bay of Plenty region.

An illustrated example, showing how to input data and interpret SolarView results.