Assessing Reliability for Quantifying Social Interactions among Crayfish

Table 1

Ranking and behavior descriptions used.

Ranking	Behavior description
1	No fighting
2	Threat displays with no claw contact
3	Claw lock, where both animals contested the encounter and at least one animal used its claws to grab its opponent
4	Strike and rip, where both animals contested the encounter and at least one animal made unrestrained use of the claws