Article
Extended Data Table 5 | Individual- and population-level lateralization of wild and captive-reared A. polyacanthus
The individual- and population-level lateralization of wild (n = 96) and captive-reared (n = 128) A. polyacanthus (mean ± s.d. standard length, 20 ± 7 mm) was tested in a detour test (AIMS 2015)
under control (around 400 μatm CO 2 ; n = 54 wild, n = 66 captive-reared) and high CO 2 (about 1,000 μatm; n = 42 wild, n = 62 captive-reared) conditions. ‘offset end’ indicates the end of the
lateralization arena where the barrier was offset by 5 mm to create a situation in which the path around the barrier was shorter if the fish turned left rather than right. The sample size (n) and
mean number of right turns (X) out of a total of 10 turns (per arena end) is indicated for each treatment group (sample sizes represent biologically independent animals). χ^2 statistics (ind χ^2 ) and
P values (ind P) are presented for tests of individual-level lateralization. z values (pop z) and P values (pop P) are presented for tests of population-level lateralization. P < 0.05 indicates
lateralization. Statistical significance is indicated in bold (α = 0.05).