. 2012 Mar 1;2(3):379–392. doi: 10.1534/g3.111.001867

Table 2 . Descriptive statistics of phenotypic traits measured in male (M) and female (F) brook charr from the QTL population (F₂ progeny).

	Spermatozoid Head Diameter, µm	Sperm Concentration, ×10⁹ spermatozoids mL^-1	Plasma Testosterone, ng mL^-1	Plasma 11-Keto-testosterone, ng mL^-1	Egg Diameter, mm	Plasma Testosterone, ng mL^-1	Plasma 17β-Estradiol, ng mL^-1
Sex	M	M	M	M	F	F	F
N	42	42	42	35	38	37	38
Min	2.57	4.52	0.56	0.39	3.35	0.85	0.15
Max	2.92	20.12	56.42	674.14	4.30	68.89	85.93
Mean ± SD.	2.86 ± 0.05	12.20 ± 3.20	20.23 ± 14.46	76.85 ± 167.84	3.96 ± 0.17	14.49 ± 13.69	6.91 ± 18.36

N, number of observations, Min, minimum mean value obtained; Max, maximal mean value obtained, mean ± SD, mean ± SD of the mean.

Table 2 . Descriptive statistics of phenotypic traits measured in male (M) and female (F) brook charr from the QTL population (F2 progeny).