Table 1.

Adult sex ratio of the Western Australian seahorse in the study area. (Adult sex ratio was calculated as number of males/(males+females). The deviation from an expected unbiased sex ratio of 0.5 was tested using a binomial test.)

year	males	females	adult sex ratio	p-value
1997	23	40	0.37	0.04
1999	43	60	0.42	0.11
2000	14	36	0.28	0.003
Total	80	136	0.37	0.001