visiting cleaner wrasses were more likely to return to the same
cleaner if the interaction had ended without conflict (see also
Bshary & Schäffer 2002), parrotfish visiting cleaning gobies did not
seem to distinguish between interactions that ended with and
without conflict. This appears to be consistent among other clients
of cleaning gobies (Soares et al. 2008c). Thus, the parrotfish clients
of cleaner wrasses seem to use partner switching as a control
mechanism against cheating while parrotfish clients of cleaning
gobies do not.