Table 3: Total number of social interaction across study conditions for sighted crayfish. Social interactions were observed for both “in water” and “out of water.” Each row corresponds to the total number of interactions for a given behavioral score. Each column corresponds to an environmental condition. In this and succeeding tables, the numbers in brackets are the total “out of water” interactions.

BehaviorLow lightRed lightNo antennulesRed light/no antennules

Invasion (1)183 (120)***101 (77)***47 (54)*54 (58)NS
Touching (2)160 (97)*** 107 (120)**98 (135)***70 (99)***
Acknowledgment (3)117 (44)***41 (33)*43 (20)**25 (10)**
Threat display (4)108 (38)***33 (22)*39 (26)*43 (5)***
Chase (5)68 (18)***51 (10)***34 (6)***43 (2)***
Grasp (6)49 (2)***63 (5)***31 (2)***13 (2)***
Dismemberment (7)
27 (0)***20 (2)***8 (0)***4 (1)***