Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Mean (±s.e.) change in (a) shoaling index or (b) line crosses for minnows responding to the odour of brown trout, rainbow trout or yellow perch, but initially conditioned with brown trout odour paired with a high concentration (black bars) or a low concentration (grey bars) of alarm cues or a water control (white bars).
