Table 2. Summary growth data.

Stations	Name	L∞ (mm)	k (year−1)	T0 (year)	R2	Φ′	MDG
1	Vigo	109.7 [107.6 111.8]	0.67 [0.62 0.72]	0.50 [0.46 0.54]	0.96	1.91	257.9±5.1
2	Ile de Re	101.1 [98.4 103.8]	0.68 [0.61 0.75]	0.47 [0.41 0.53]	0.95	1.84	217.7±2.1
3	Bay of Brest	103.6 [101.3 105.9]	0.83 [0.76 0.90]	0.56 [0.52 0.60]	0.97	1.95	241.0±1.6
4	Bay of Seine	108.4 [104.7 112.0]	0.87 [0.76 0.97]	0.58 [0.53 0.63]	0.95	2.01	260.9±1.3
5	Plymouth	108.4 [102.9 113.8]	0.61 [0.52 0.71]	0.48 [0.40 0.56]	0.96	1.86	223.1±2.4
6	Holyhead	143.6 [136.3 150.9]	0.26 [0.23 0.29]	0.41 [0.32 0.49]	0.97	1.73	261.3±2.1
7	Scarborough	137.0 [126.8 147.2]	0.25 [0.21 0.29]	0.40 [0.31 0.50]	0.95	1.67	273.3±5.6
8	Campbell town	146.9 [131.9 161.8]	0.23 [0.18 0.27]	0.19 [0.07 0.31]	0.95	1.70	264.8±3.4
9	Austevoll	155.9 [126.5 185.2]	0.20 [0.13 0.28]	0.36 [0.16 0.56]	0.95	1.69	210.6±1
10	Bessaker	127.2 [118.5 135.9]	0.28 [0.24 0.33]	0.42 [0.30 0.55]	0.94	1.66	235.6±2.9
11	Bronnoysund	133.5 [128.6 138.4]	0.23 [0.21 0.25]	0.54 [0.46 0.61]	0.97	1.61	240.6±5.8
12	Traena	144.5 [139.3 149.8]	0.24 [0.22 0.26]	0.56 [0.49 0.63]	0.97	1.70	261.0±1.8

Von Bertalanffy growth parameters and index of growth performance (Φ′) were fitted from growth data of each study station (in brackets, the limits of the asymptotic 95% confidence interval). Maximum daily growth, MDG (in µm d⁻¹), was averaged on the ten highest successive increments (± standard error).