Story: Eels

Glass eels

Glass eels

The young eels that arrive from the sea at river mouths are known as glass eels, because they are transparent. Between July and December each year, millions arrive after drifting and swimming thousands of kilometres from the tropics. They are typically 5.5–6.5 centimetres long.

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NIWA – National Institute of Water and Atmospheric Research
Photograph by Nelson Boustead

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How to cite this page:

Paddy Ryan, 'Eels - Life cycle and breeding grounds', Te Ara - the Encyclopedia of New Zealand, (accessed 30 November 2023)

Story by Paddy Ryan, published 24 Sep 2007