Story: Marine invaders

Checking ballast water

Checking ballast water

To reduce the risk of unwanted organisms entering New Zealand waters, regulations require ships to exchange their high-risk ballast water away from coasts. This man is taking samples of water in a ship’s hold to check that the vessel has complied with the requirements.

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Cawthron Institute
Photograph by Tim Dodgshun

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How to cite this page:

Christina Troup, 'Marine invaders - Preventing future invasions', Te Ara - the Encyclopedia of New Zealand, (accessed 22 June 2024)

Story by Christina Troup, published 12 Jun 2006