Table 2.

Length (millimetres) for herring larvae reared in four treatments and sampled at five points during the experiment (T_0 − 5). Larvae were reared at 11°C and pH 8.0 (control/control+) and at 14°C and pH 7.6 (OWA/OWA+). The proportion of each stage is indicated for each sampling point

(Sample) CDD	Treatment	Stage	n	Proportion	Length (mm) Minimum	Length (mm) Maximum	Length (mm) Mean	Length (mm) SD
(T 0 ) 35		1	35	100.0%	7	10	8.69	0.87
(T 1 ) 89	Control	1	42	61.8%	8	11	10.43	0.77
2A	26	38.2%	10	12	11.15	0.46
Control+	1	37	54.4%	8	12	10.51	0.9
2A	31	45.6%	7	12	10.81	0.87
OWA	1	42	95.5%	9	11	10.17	0.62
2A	2	4.5%	10	11	10.5	0.71
OWA+	1	67	100.0%	8	11	9.99	0.75
(T 2 ) 253	Control	2A	21	10.6%	9	12	10.81	0.93
2B	177	89.4%	8	15	12.2	1.12
Control+	2A	17	8.6%	9	13	11.06	0.9
2B	179	90.4%	9	16	12.58	1.25
3A	2	1.0%	15	15	15	NA
OWA	2A	67	50.8%	9	13	11.16	0.79
2B	65	49.2%	11	14	12.88	0.74
OWA+	2A	63	31.8%	10	13	11.25	0.86
2B	135	68.2%	10	15	13.17	0.85
(T 3 ) 436	Control	2B	16	20.5%	12	17	15.25	1.48
3A	45	57.7%	15	20	17.69	1.18
3B	17	21.8%	18	22	19.82	1.42
Control+	2B	13	16.7%	13	16	14.38	1.19
3A	44	56.4%	12	19	17.02	1.42
3B	21	26.9%	17	21	19.19	1.29
OWA	2A	1	1.9%	11	11	11	NA
2B	14	26.9%	10	15	13.14	1.7
3A	26	50.0%	13	17	15.08	1.16
3B	11	21.2%	14	21	17.55	1.75
OWA+	2B	22	28.2%	10	16	13.45	1.41
3A	39	50.0%	13	19	15.21	1.26
3B	17	21.8%	16	20	17.59	1.18
(T 4 ) 663	Control	2B	6	2.1%	14	16	15	0.89
3A	31	10.7%	14	19	16.55	1.21
3B	228	78.9%	13	25	20.53	1.87
4	24	8.3%	22	27	24.33	1.34
Control+	2B	5	1.7%	13	16	14.6	1.14
3A	18	6.2%	15	18	16.22	0.94
		3B	209	72.6%	15	25	20.78	1.87
		4	56	19.4%	21	30	24.79	1.68
	OWA	2B	17	8.9%	12	16	14.06	1.03
	3A	37	19.3%	13	19	15.84	1.42
	3B	106	55.2%	15	25	19.64	1.93
	4	32	16.7%	19	27	23.19	2.26
	OWA+	2B	13	4.5%	13	16	14.85	1.14
	3A	46	16.0%	12	21	16.15	1.92
	3B	181	62.8%	15	24	19.08	1.88
	4	48	16.7%	19	26	22.19	1.78