Story: Marine invaders

Trawler sea chest (1st of 2)

Trawler sea chest

A sea chest is a recess in a ship’s hull that houses pipes to take in seawater. Water is pumped in for cooling engines, washing decks and as ballast to stabilise the vessel. A sea chest has a grille to keep out large items, but this can also stop smaller organisms from being flushed out.

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Cawthron Institute
Photograph by Tim Dodgshun

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How to cite this page:

Christina Troup, 'Marine invaders - Reaching New Zealand', Te Ara - the Encyclopedia of New Zealand, (accessed 17 July 2024)

Story by Christina Troup, published 12 Jun 2006