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Ballast Tank of Ocean-Going Ship
Ballast Tank of Ocean-Going Ship
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Title: Ballast Tank of Ocean-Going Ship


The empty interior of an ocean-going ship's ballast tank. Such tanks are filled with water to balance a ship's loads. Unless the water is treated before it is emptied into foreign waters, it can introduce foreign organisms into the water that may become established and compete with native species, causing untold ecological and economic damage. USGS scientists are taking up the challenge of dosing, mixing and testing cost-effective treatments in such large tanks that will kill the organisms but render the water safe for discharge.

Location: Seattle , WA, USA

Date Taken: March 2013

Photographer: Scott Smith
Photographer Email:
Photographer Organization: USGS

Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.


File Details:
Type: JPEG image - 604.91 KB
Dimensions: 1500 x 1122
Resolution: 72 dpi

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Tags: Ecosystems Northwest



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