Structures and Function of Remora Adhesion

Author:

Nadler Jason H.,Mercer Allison J.,Culler Michael,Ledford Keri A.,Bloomquist Ryan,Lin Angela

Abstract

ABSTRACTRemoras (echeneid fish) reversibly attach and detach to marine hosts, almost instantaneously, to “hitchhike” and feed. The adhesion mechanisms that they use are remarkably insensitive to substrate topology and quite different from the latching and suction cup-based systems associated with other species at similar length scales. Remora adhesion is also anisotropic; drag forces induced by the swimming host increase adhesive strength, while rapid detachment occurs when the remora reverses this shear load. In this work, an investigation of the adhesive system’s functional morphology and tissue properties was carried out initially through dissection and x-ray microtomographic analyses. Resulting finite element models of these components have provided new insights into the adaptive, hierarchical nature of the mechanisms and a path toward a wide range of engineering applications.

Publisher

Springer Science and Business Media LLC

Subject

General Engineering

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