Table 2. Mean values for the meristic and morphometric asymmetry measurements in female marine medaka, Oryzias dancena, and the results of t-tests of the differences between diploid and triploid fish

Trait1) Diploid Triploid
Left Right t-test2) Left Right t-test2)
Eye diameter/HL (%) 53.0 53.0 NS 62.4 62.4 NS
1×2/Ls (%) 6.80 6.76 NS 6.03 6.03 NS
1×3/Ls (%) 27.6 27.6 NS 25.0 23.7 *
Number of pectoral fin ray 10 9 * 11 10 **
Number of pelvic fin ray 5 5 NS 6 5 *
HL, head length; Ls, standard length; 1×2, length from the middle point of the upper lip to each tip of the upper lip; 1×3, length from the middle point of the upper lip to each side of the operculum.
NS, denotes not significant at p=0.05;
denotes significant at p=0.05;
denotes significant at p=0.01.