  A string of tracers, interacting elastically, in a turbulent flow is shown to
have a dramatically different behaviour when compared to the non-interacting
case. In particular, such an elastic chain shows strong preferential sampling
of the turbulent flow unlike the usual tracer limit: an elastic chain is
trapped in the vortical regions and not the straining ones. The degree of
preferential sampling and its dependence on the elasticity of the chain is
quantified via the Okubo-Weiss parameter. The effect of modifying the
deformability of the chain, via the number of links that form it, is also
examined.
