Robot-fish interact with live fish

Nov 15, 2012
Robot-fish interact with live fish
Comparison of the robotic-fish to a zebrafish individual. Credit: The Polytechnic Institute of New York University

Scientists have developed robot-fish that can interact intelligently with live zebrafish according to a study published in Journal of the Royal Society Interface today.

Researchers at The Polytechnic Institute of New York University explored the interactions of zebrafish with a that autonomously observed and adapted to the live fish's motion. An was designed to allow the robotic-fish to change the movement of its tail as the fish approached or receded in the tank. Like a trained leader, a robotic-fish that beat its tail faster as zebrafish moved closer and slower as they swam away was found to be the most preferred by zebrafish.

A robotic fish was placed in a compartment next to one containing a live zebrafish. The preference of the live fish was indicated by the average time spent on each side of the tank; either close to or further away from the robot-fish. The tail-beating of the robotic-fish was controlled in real-time based on feedback from fish motion; what is called a closed-loop control system.

This study has demonstrated that real-time visual feedback from the robotic-fish has a significant role in attracting live and influencing their behaviour. Introducing robots in the wild may open for conservation studies, wherein closed-loop control can be used to manipulate the response of live subjects.

Explore further: Cats put sight over smell in finding food

More information: Closed-loop control of zebrafish response using a bioinspired robotic-fish in a preference test, Journal of the Royal Society Interface, dx.doi.org/10.1098/rsif.2012.0540

add to favorites email to friend print save as pdf

Related Stories

Robot fish found able to lead real fish (w/ video)

Feb 24, 2012

(PhysOrg.com) -- Researchers studying schooling in fish have discovered that a real fish will follow a robot fish if it will help them use less energy swimming. This is the conclusion of a pair of engineers ...

Fish-shaped robot for underwater research

Dec 16, 2004

The project of underwater bionic robotic fish co-developed by the Institute of Robot under Beijing University of Aeronautics and Astronautics (BUAA) and the Institute of Automation under Chinese Academy of Sciences ...

Recommended for you

A molecular compass for bird navigation

10 hours ago

Each year, the Arctic Tern travels over 40,000 miles, migrating nearly from pole to pole and back again. Other birds make similar (though shorter) journeys in search of warmer climes. How do these birds manage ...

100,000 bird samples online

11 hours ago

The Natural History Museum (NHM) in Oslo has a bird collection of international size. It is now available online.

New genetic technologies offer hope for white rhino

13 hours ago

With support from the Seaver Institute, geneticists at San Diego Zoo Institute for Conservation Research are taking the initial steps in an effort to use cryopreserved cells to bring back the northern white rhino from the ...

User comments : 0

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.