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Robofish

Robotic sea bream from the University of Kitakyushu

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Tai-robot-kun’s creator, professor Ikuo Yamamoto, says the robot can easily be mass-produced, outfitted with various cameras and sensors, and released into the sea to perform a wide range of oceanographic survey tasks. He adds that because the robot swims silently and looks like a real fish, it would be able to gather data without alarming the creatures it encounters.

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The engineers involved in the project say they are ready to mass-produce the robot, which is currently a unique piece. The fish was shown to the general public during an event on the university campus last week. A robotic manta ray is in development as well.

clipped from: technovelgy.com   
Here's a small school of robot fish:

  - Robotic Fish From China
  - Robofish Autonomous Fish-bot At London Acquarium
  - Robotic Carps Swims Realistically In London
  - RoboSalmon Are Descended From SHARCs
  - Robofish Swim Autonomously And Communicate Wirelessly