Table 3. Number of individuals and Chi-square test for sex ratio of roundscads

Species	n (ind.)	Male (ind.)	Female (ind.)	Ratio M:F	χ2 calc.	Conclusion ratio
Decapterus kurroides	35	18	17	1 : 0.94	0.03ns	M:F = 1:1
Decapterus macarellus	126	63	63	1 : 1	0.00ns	M:F = 1:1
Decapterus macrosoma	42	24	18	1 : 0.75	0.86ns	M:F = 1:1
Decapterus muroadsi	38	17	21	1 : 1.24	0.42ns	M:F = 1:1
Decapterus russelli	49	22	27	1 : 1.23	0.51ns	M:F = 1:1

ns, not significantly different.