Journal
JOURNAL OF THE ROYAL SOCIETY INTERFACE
Volume 9, Issue 73, Pages 1856-1868Publisher
ROYAL SOC
DOI: 10.1098/rsif.2012.0084
Keywords
biomimetics; collective behaviour; fish swimming; hydrodynamics; leadership; robotics
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Funding
- National Science Foundation [CMMI-0745753]
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0745753] Funding Source: National Science Foundation
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The integration of biomimetic robots in a fish school may enable a better understanding of collective behaviour, offering a new experimental method to test group feedback in response to behavioural modulations of its 'engineered' member. Here, we analyse a robotic fish and individual golden shiners (Notemigonus crysoleucas) swimming together in a water tunnel at different flow velocities. We determine the positional preference of fish with respect to the robot, and we study the flow structure using a digital particle image velocimetry system. We find that biomimetic locomotion is a determinant of fish preference as fish are more attracted towards the robot when its tail is beating rather than when it is statically immersed in the water as a 'dummy'. At specific conditions, the fish hold station behind the robot, which may be due to the hydrodynamic advantage obtained by swimming in the robot's wake. This work makes a compelling case for the need of biomimetic locomotion in promoting robot-animal interactions and it strengthens the hypothesis that biomimetic robots can be used to study and modulate collective animal behaviour.
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