Table 2.
Range of physical–chemical conditions represented by the analyses
| Variable | Unit | Gulf of Bothnia | Baltic Proper | West coast | |||
|---|---|---|---|---|---|---|---|
| Inner | Outer | Inner | Outer | Inner | Outer | ||
| Latitude | °N | 60.1–65.9 | 60.1–65.3 | 56.1–59.8 | 55.4–59.8 | 57.3–59.1 | 55.7–58.4 |
| Exposure | 66–939,810 | 5–742,049 | 1–984,873 | 1–641,158 | 136–311,641 | 6299–984,873 | |
| Salinity | 0.5–5.8 | 0.6–5.3 | 1.8–7.8 | 5.9–8.3 | 18.4–25.9 | 9.2–30.5 | |
| Secchi depth | m | 1.0–8.5 | 3.0–8.0 | 1.3–10.5 | 5.0–12.0 | 3.0–8.3 | 4.5–9.0 |
| Total nitrogen | µmol L−1 | 11.3–76.3 | 11.2–22.7 | 15.0–52.7 | 17.5–25.4 | 14.9–20.9 | 12.0–19.4 |
| Total phosphorus | µmol L−1 | 0.16–2.40 | 0.14–0.51 | 0.38–2.25 | 0.33–1.13 | 0.33–0.88 | 0.36–0.78 |
| Chlorophyll a | µg L−1 | 1.3–41.6 | 1.4–11.1 | 0.8–15.0 | 0.5–9.6 | 1.3–4.4 | 0.7–3.2 |
Values represent growth season (May–September) surface (0–10 m depth) values for all variables except latitude and exposure. Exposure is calculated according to a simplified wave model (SWM) by Isæus (2004)