Figure 2.

Median time±quartiles spent by focal fish with stimulus fish from their home site where the other stimulus fish was taken from the alternative site as a function of time spent in mixed water, n=24 for each treatment. 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.