Table 2 The mean and range (minimum and maximum) of the body weight, total length and condition factor (CF) of sprat and herring with sampling areas (the Baltic Proper, Bothnian Sea and Gulf of Finland), seasons (autumn and spring) and age groups combined, and the lipid content (in wet weight), total thiamine concentration, and the contents of individual fatty acids and their sums (i.e., the main FA groups) in age group pools of sprat (17 pools, each consisting of 12–92 specimens) and herring (24 pools, each consisting of 7–133 specimens)
Sprat | p < | Herring | |||
|---|---|---|---|---|---|
Mean | Range | Mean | Range | ||
Weight, g | 8.38 | 2.40–12.0 | – | 18.1 | 2.71–42.27 |
Length, mm | 113.4 | 79–130 | – | 140.2 | 83–183 |
CF | 0.55 | 0.45–0.69 | – | 0.57 | 0.48–0.69 |
Lipid, % | 9.32 | 1.90–17.3 | 0.001 | 5.56 | 2.01–8.80 |
Total thiamine, nmol g−1 | 5.002 | 2.519–9.434 | ns | 4.649 | 2.538–7.213 |
Saturated FAs (SFA) | |||||
14:0, mg g−1 | 3.55 | 0.60–5.92 | 0.05 | 2.53 | 1.15–3.85 |
16:0, mg g−1 | 20.01 | 4.01–37.42 | 0.01 | 11.90 | 4.55–18.00 |
17:0, mg g−1 | 0.46 | 0.07–0.78 | 0.001 | 0.24 | 0.00–0.56 |
18:0, mg g−1 | 2.76 | 0.79–4.82 | 0.001 | 1.43 | 0.39–2.53 |
Total SFA, mg g−1 | 27.58 | 5.57–49.90 | 0.01 | 16.72 | 6.31–25.17 |
Monounsaturated FAs (MUFA) | |||||
16:1n-7, mg g−1 | 4.78 | 0.68–8.11 | ns | 3.87 | 1.32–10.09 |
17:1n-8, mg g−1 | 0.52 | 0.07–1.00 | 0.001 | 0.24 | 0.11–0.45 |
18:1n-7, mg g−1 | 2.98 | 0.70–6.18 | ns | 2.65 | 1.13–5.42 |
18:1n-9, mg g−1 | 25.04 | 3.91–47.54 | 0.001 | 9.34 | 4.13–14.58 |
20:1n-9, mg g−1 | 0.72 | 0.09–3.04 | ns | 0.47 | 0.19–1.03 |
Total MUFA, mg g−1 | 34.98 | 5.56–63.49 | 0.001 | 17.08 | 7.29–31.35 |
Polyunsaturated FAs (PUFA) | |||||
18:2n-6, mg g−1 | 3.09 | 0.49–5.81 | ns | 2.37 | 0.89–4.52 |
18:3n-3, mg g−1 | 2.36 | 0.07–5.12 | 0.01 | 1.26 | 0.29–3.46 |
20:2n-6, mg g−1 | 0.55 | 0.02–1.02 | ns | 0.88 | 0.17–6.56 |
20:4n-6 (ARA), mg g−1 | 0.37 | 0.00–1.03 | ns | 0.41 | 0.08–0.74 |
20:5n-3 (EPA), mg g−1 | 6.27 | 1.35–13.59 | 0.01 | 3.93 | 1.29–7.40 |
22:5n-3, mg g−1 | 0.37 | 0.00–1.06 | ns | 0.28 | 0.00–0.67 |
22:6n-3 (DHA), mg g−1 | 10.13 | 4.63–18.94 | 0.001 | 6.35 | 2.39–9.75 |
Total PUFA, mg g−1 | 25.69 | 7.13–50.76 | 0.01 | 16.81 | 5.59–31.62 |
n-3 PUFA, mg g−1 | 21.63 | 6.37–43.22 | 0.01 | 13.09 | 4.35–24.85 |
n-6 PUFA, mg g−1 | 4.07 | 0.75–7.54 | ns | 3.71 | 0.91–10.83 |