Aquatic canaries - using fish to test city water

Taipei, Taiwan - Singaporean scientists have developed a simple automated way to monitor city water supplies: use a computer to watch fish.

The fishcam monitors water quality by observing the number of dead fish in aquariums filled with city water. Updates to the system will allow the fishcam’s computer software to not only detect deaths, but subtle changes in fish behavior, indicating toxicity. While current systems using humans to monitor these aquatic canaries, the new system is completely automated.

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Source : vnunet.com

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