Table 1.
Physical and chemical parameters for each basin.
| E. Med | C. Med | GAB | Caspian | |
|---|---|---|---|---|
| Temp surface | 20.3 (17.5–26.3) | 17.3 (16.7–17.7) | 16.6 (12.7–19.9) | 20.2 (11.2–25.1) |
| Temp deep (°C) | 13.9 (13.7–14.5) | 13.7 (13.7–13.8) | 2.9 (2.3–4.3) | 6.7 (6.1–7.2) |
| Dissolved oxygen—surface (mg/L) | 9.5 (9.3–11.5) | 6.8 (5.1–7.5) | 7.8 (7.6–8.0) | 8.4 (8.1–8.5) |
| Dissolved oxygen—deep (mg/L) | 6.4 (5.9–6.9) | 5.5 (4.2–6.1) | 5.9 (5.6–6.4) | 2.6 (0.5–5.2) |
| Salinity (psu) | 38.9 (38.5–39.5) | 38.6 (38.2–38.9) | 34.8 (34.4–35.7) | 11.3 (11.2–11.4) |
| Nitrate (μM) | 4.09 (0.01–6.95) | 3.11 (0.027–5.74) | 18.6 (0.01–33.1) | 4.5 (0.08–12.4) |
| Ammonia (μM) | 0.03 (<0.02–0.131) | 0.05 (0.027–5.74) | <0.02 | 0.02 (<0.02–0.04) |
| Nitrite (μM) | <0.01 | <0.01 | <0.01 | 0.03 (<0.01–0.1) |
| Inorganic P (μM) | 0.231 (0.008–0.437) | 0.151 (0.008–0.224) | 1.44 (0.013–2.45) | 0.42 (0.01–1.65) |
| Silicate (μM) | 5.17 (0.377–9.98) | 3.87 (0.449–7.56) | 30.5 (0.065–90.8) | 25.6 (0.24–84.7) |
| TOC (mg/L) | 0.952 (0.68–1.482) | 0.77 (0.58–1.07) | 0.952 (0.68–1.196) | 6.9 (5.7–7.9) |
| Total nitrogen (mg/L) | 0.13 (0.09–0.19) | 0.09 (0.07–0.13) | 0.33 (0.07–0.54) | 0.43 (0.34–0.50) |
The first number is the average for each parameter. The numbers in the parentheses are the range of values for each environmental parameter. Surface samples (<60 m) and deep-water samples (>60 m) were grouped together for comparison temperature and dissolved oxygen.