Table 1.

Morphological and performance variables for deep-bodied and shallow-bodied crucian carps. (Numbers refer to group average±s.e.)

	variable	deep-bodied	shallow-bodied
morphology	length (mm)	97.8±2.8	102.0±2.1
	weight (g)	17.2±1.7	16.3±1.0
	length/depth	2.85±0.03	3.50±0.02
	drag coefficient	0.047±0.0005	0.040±0.0003
	muscle mass (%)	31.0±2.3	25.6±1.6
performance	latency (ms)	13.1±0.6	13.7±0.7
	cumulative distance (cm)	4.36±0.12	3.58±0.09
	velocity (m s−1)	1.18±0.03	0.97±0.03
	acceleration (m s−2)	44.8±1.7	36.6±1.1
	turning rate (° s−1)	2881±73	2503±79
	stage 1 angle (°)	95.8±5.2	104±6.3
	stage 1 duration (ms)	33.4±1.7	40.8±2.1