Table 1. Change in interbeat intervals (IBI) in Scylla paramamosain in response to sugarcane juice delivered to appendages.

Appendage	Crab	Sugarcane juice concentration (%)	Pre-test IBI: log10-transformed mean IBI (s)	Pre-test IBI: log10-transformed IBI 95% confidence interval (s)	Test-beat: log10-transformed IBI (s)
Swimming leg	A (male)	10	0.248	0.171−0.325	0.646*
		50	0.237	0.169−0.305	0.898*
	B (female)	10	0.290	0.249−0.331	0.643*
		50	0.266	0.233−0.299	0.981*
	C (female)	10	0.237	0.207−0.267	0.620*
		50	0.247	0.202−0.292	0.929*
Walking leg	A	10	0.404	0.350−0.458	0.737*
		50	0.261	0.206−0.316	0.729*
	B	10	0.331	0.261−0.401	0.659*
		50	0.246	0.178−0.314	0.676*
	C	10	0.400	0.354−0.446	0.898*
		50	0.203	0.168−0.238	0.484*
Claw	A	10	0.273	0.223−0.313	0.979*
		50	0.243	0.196−0.290	0.587*
	B	10	0.250	0.204−0.296	0.754*
		50	0.276	0.234−0.318	1.157*
	C	10	0.261	0.194−0.328	0.618*
		50	0.285	0.109−0.461	0.771*
Antenna	A	10	0.216	0.188−0.244	0.236
		50	0.137	0.066−0.208	0.090
	B	10	0.180	0.150−0.210	0.207
		50	0.089	0.020−0.158	0.117
	C	10	0.246	0.206−0.286	0.217
		50	0.198	0.127−0.269	0.196
Antennule	A	10	0.223	0.169−0.277	0.633*
		50	0.284	0.241−0.327	0.844*
	B	10	0.187	0.136−0.238	0.375*
		50	0.253	0.201−0.305	0.832*
	C	10	0.255	0.173−0.337	0.862*
		50	0.180	0.144−0.216	1.097*
Mouthparts	A	10	0.308	0.261−0.355	0.671*
		50	0.339	0.307−0.371	0.969*
	B	10	0.301	0.265−0.337	0.746*
		50	0.306	0.285−0.327	0.859*
	C	10	0.277	0.224−0.310	0.633*
		50	0.339	0.280−0.398	0.754*

Notes.

The stimulation was triplicated but cardiac responses were shown only for the first single touch. Mean pre-test IBI was calculated for 10 pre-test IBI.

^*denotes significantly larger test-beat interval than 95% confidence interval calculated using 10 pre-test IBIs.