Figure 1.

Median time±quartiles spent by focal fish with each of two stimulus shoals: (a) Focal fish taken from sites 1 and 2 were given a choice between stimulus fish from their home site and stimulus fish from the alternative site, n=24; (b) Focal fish taken from site 2 were transplanted to site 1 overnight before being given a choice between stimulus fish from their site 1 and stimulus fish from site 2, n=16 and (c) Focal fish taken from sites 2 and 3 were given a choice between stimulus fish from their home site and stimulus fish from the alternative site, n=24. Differences in time spent shoaling by focal fish with the two stimulus shoals in binary choice tests were derived by subtracting time spent with shoal ‘b’ from time spent with shoal ‘a’ and comparing the results against a null expectation of 0. Significant differences are denoted as follows: ^*p<0.05; ^**p<0.01.