Table 2 Morphometric measurements and results of t-test for significances of diploid and triploid spontaneous generation on crucian carp, Carassius auratus, crucian carp, C. cuvieri and common carp, Cyprinus carpio^*

Morphometric measurement	Carassius auratus			C. cuvieri			Cyprinus carpio
	Diploid	Triploid	t-test	Diploid	Triploid	t-test	Diploid	Triploid	t-test
Ls (cm)	20.8±6.00	21.5±4.90	†	26.2±4.84	29.6±6.42	†	39.3±5.56	41.7±5.76	†
ED/Ls	5.3±1.17	5.2±1.03	NS	4.9±0.52	5.3±0.80	NS	3.5±0.47	3.1±0.43	NS
Classical dimension
1×2/Ls	49.3±5.14	49.1±2.67	NS	48.1±3.61	44.3±5.21	†	43.1±7.87	43.9±6.34	NS
1×3/Ls	57.6±7.24	56.1±6.41	†	39.3±5.56	43.9±5.56	†	58.2±8.12	57.3±7.24	†
1×5/Ls	56.8±6.22	55.5±8.04	†	39.3±5.56	39.3±5.56	†	57.1±7.88	55.8±8.61	†
1×6/Ls	45.9±3.69	45.3±2.67	NS	44.3±7.18	43.9±4.81	NS	39.7±6.08	41.3±7.88	†
1×8/Ls	27.1±2.74	28.0±2.45	†	28.0±2.61	28.7±6.82	NS	25.6±6.35	23.5±8.14	†
2×4/Ls	59.5±3.43	59.6±2.14	NS	61.4±5.38	62.8±6.08	†	56.7±9.78	55.4±9.06	†
Truss dimension
2×5/Ls	44.6±3.22	43.7±1.82	†	45.6±4.59	47.3±4.38	†	40.6±4.34	39.1±7.42	†
2×6/Ls	35.6±2.23	34.5±1.64	†	38.8±3.40	41.2±3.51	†	26.0±3.05	25.2±6.88	†
2×7/Ls	35.5±1.85	33.7±1.85	†	36.5±3.70	35.8±6.63	†	28.7±2.12	27.3±8.14	†
2×9/Ls	13.9±2.99	14.4±2.11	NS	13.4±2.33	13.2±1.28	NS	14.1±9.09	13.9±5.50	NS
3×5/Ls	23.7±3.66	24.6±1.47	†	25.8±4.40	27.4±4.04	†	19.1±2.75	18.5±6.77	†
3×6/Ls	44.7±3.77	43.0±3.04	†	44.0±4.58	49.0±5.56	†	39.8±2.90	41.5±7.31	†
3×7/Ls	57.4±5.12	55.5±2.76	†	55.3±5.36	57.8±6.32	†	56.9±9.34	59.7±8.11	†

^* Data of each experimental group were analyzed using t-test on data transformed to the arcsine of the square root. NS: no significant; †:0.05. Refer to the landmarks in Fig. 1 and Table 1 for the dimension numbers in Table 2.