Table 3. Line and replicate means for assayed traits.

Line	Paternity: all		Paternity: sires only		Male attractiveness		Male distance		Female distance		Fecundity
	Mean±s.e.	N	Mean±s.e.	N	Mean±s.e.	N	Mean±s.e.	N	Mean±s.e.	N	Mean±s.e.	N
Control A	6.67±2.98	18	15.00±5.54	8	142.08±17.08	51	21.03±0.58	54	17.70±0.50	50	8.78±1.27	40
Down A	6.56±4.42	18	23.60±14.08	5	160.36±21.58	51	21.55±0.57	54	16.13±0.52	50	5.05±1.19	40
Up A	6.61±2.87	18	17.00±5.53	7	140.38±16.83	51	22.50±0.55	53	16.34±0.53	50	7.85±1.25	40
Control B	13.65±4.11	20	21.00±5.33	13	155.36±21.38	58	21.94±0.48	50	15.73±0.55	50	10.55±1.10	40
Down B	8.63±2.51	19	11.71±3.00	14	151.36±18.77	58	23.79±0.55	50	15.53±0.58	50	7.55±1.05	40
Up B	12.30±3.33	20	20.50±4.07	12	141.04±20.59	58	22.00±0.60	50	15.79±0.50	50	12.45±0.95	40
Control C	26.05±4.80	20	30.66±4.83	17	178.27±29.02	42	20.82±0.50	50	13.17±0.62	50	11.15±1.55	40
Down C	18.35±5.49	20	30.58±7.23	12	187.70±24.21	42	22.96±0.46	50	16.04±0.44	50	8.58±0.89	40
Up C	14.20±3.70	20	17.75±4.17	16	199.66±33.27	42	21.16±0.51	50	12.27±0.71	50	7.55±1.29	40
Overall	12.79±1.37	173	26.04±3.11	104	159.62±7.42	453	21.97±0.18	461	15.41±0.20	450	8.83±0.41	360

Paternity is the number of offspring sired by males during competitive mating trials; male attractiveness is measured as female association time (s) in mate choice trials; male and female burst swimming performance are measured as distance (mm) travelled in 38 ms; fecundity is the total number of offspring produced by within-line pairs of generation 8 fish.