Freshwater fish

Tiny, translucent eels may hold the answers to one of the fish world’s great mysteries. Zen Gregor investigates.

Contraptions that resemble upside-down kitchen sinks have been placed in the Waikawa River in Southland to attract a notoriously elusive native fish species.

Under the light of the moon where the river meets the sea, NIWA researchers are planning to catch tiny fish that are all but invisible to the naked eye.

NIWA freshwater scientists are pinning their hopes of solving an age-old mystery on 10 female longfin eels who are about to begin an epic journey to their spawning grounds somewhere in the Pacific Ocean.

The tiny inanga have been plucked from Waikato streams and held in a darkened laboratory for the last month, undertaking highly advanced testing to find the strongest, fittest and fastest fish.

In a secret training location on the outskirts of Hamilton, a squad of whitebait is being put through its paces by fish scientists.

As a young child growing up on an Irish farm, one of Eimear Egan’s chores was to regularly clean out the well from where her family drew its drinking water. In the well lived a large eel that, no matter how many times it was shifted, just kept coming back.

Learn how to use the New Zealand Freshwater Fish Database (NZFFD)

Banded kōkopu juveniles are very good climbers and will try to escape from buckets by clinging to and wriggling up the sides.

The largest member of the Galaxiidae family.

Inanga are the predominant species in the modern whitebait fishery.