A number of copying errors were identified in the original data file uploaded to the online repository. A corrected version of the data file was uploaded on May 11, 2021. The errors in the original data file do not affect the findings and conclusions of the associated paper.
The corrected dataset is available from https://doi.org/10.25903/sx7n-df65
Olfactory measurements were recorded after a 2 minute acclimation period to the flume. Documentation of a stream preference (via L or R) occurred by direct observation, measuring every 5 seconds for 2 minutes. Water streams were then switched, and the fish was given another acclimation period before the second half of testing. Each fish was only tested once. Lateralisation trials were recorded at each end of a t-maze chamber. Introduction to the ends of the chamber was randomised. After a 5 minute acclimation period, fish were gently guided to the runway and the direction of their turn at the perpendicular barrier was recorded by direct observation. Each fish was only tested once.
The full methodology is available from the Related Publications link below.