Table 2. Summary of the outcome of agonistic encounters in larger crayfish.

	animal	opponent	outcome of pairings				Fisher’s exact test
			win	lose	draw	winning rate(%)	against NL	against SL
A	Naive Large (NL)	Naive Small	19	3	1	82.61	–	0.0012820
	Dominant Large (DL)	Naive Small	5	0	0	100	1	0.0002948
	Subordinate Large (SL)	Naive Small	1	13	2	6.25	0.0012820	–
B	saline injected into Naive Large 10 min before pairing	Naive Small	9	1	2	75	0.669741	0.0002732
	0.1 µM OA injected into NL 10 min before pairing	Naive Small	5	2	1	62.5	0.334589	0.0068649
	0.5 µM OA injected into NL 10 min before pairing	Naive Small	6	3	1	60	0.205421	0.0052903
	1.0 µM OA injected into NL 10 min before pairing	Naive Small	2	8	0	20	0.0011736	0.538462
	0.1 µM TA injected into NL 10 min before pairing	Naive Small	3	6	1	30	0.0059154	0.264214
C	20 µM mianserin injected into NL 10 min before pairing	Naive Small	4	3	3	40	0.0348716	no test
	20 µM mianserin injected into NL 1 HR before pairing	Naive Small	5	5	0	50	0.0895054	no test
D	saline injected into SL after social rank formation	Naive Small	1	11	0	8.33	0.0000333	1
	10 µM phentolamine injected into SL after social rank formation	Naive Small	2	7	1	20	0.0011736	0.538462
	25 µM phentolamine injected into SL after social rank formation	Naive Small	5	5	0	50	0.0895054	0.0184251
	20 µM mianserin injected into SL after social rank formation	Naive Small	2	8	0	20	0.0011736	0.538462