Behaviour Description Score at each observation
Concealment Hiding 0
Not hiding 1
Activity Active avoidance -1
Resting (inactive) 0
Swimming in water column 1
Aggression Victim -1
No aggression 0
Rubbing against, or quickly darting at, other 1
Extended chasing and/or nipping other 2
Feeding No food taken 0
Second to take food 1
First to take food 2