Periodic events of Potamogeton alpinus in NW Poland (Pomerania region)
, , oraz | 13 mar 2018
O artykule
Article Category: Original research paper
Data publikacji: 13 mar 2018
Zakres stron: 41 - 49
Otrzymano: 06 lip 2017
Przyjęty: 08 wrz 2017
DOI: https://doi.org/10.1515/ohs-2018-0005
© 2018 Faculty of Oceanography and Geography, University of Gdańsk, Poland
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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Characteristics of age stages (J–S, where: J – juvenile, M – mature, G – generative, S – senile) and the time of their residence in the population, on the basis of 728 plant samples
| Trait/Age stage | J | M | G | S |
|---|---|---|---|---|
| No. of samples | 79 | 482 | 125 | 42 |
| Height of shoot (cm) | 4.5 ± 2.0 | 32.1 ±23.6 | 54.9 ± 32.4 | 15.0 ± 15.9 |
| (1.2–13.0) | (3.5–185.5) | (19.5–173.5) | (1.1–66.0) | |
| Number of leaves | 2.3 ± 2.4 | 11.5± 3.3 | 14.2 ± 3.2 | 2.3 ± 3.1 |
| (0–7) | (4–22) | (7–23) | (0–9) | |
| Biomass (mg d.w.) | 13.4 ± 12.3 | 43.1 ± 23.4 | 70.3 ± 29.9 | 16.8 ± 14.9 |
| (1.8–62.3) | (5.6–136.1) | (13.7–180.5) | (2.0–68.5) | |
| Allocation of biomass to stem (%) | 28.7 ±21.5 | 22.3 ± 9.2 | 28.9 ± 8.0 | 44.4 ± 20.8 |
| (4.0–95.5) | (3.3–62.7) | (13.6–57.1) | (7.4–90.4) | |
| Allocation of biomass to rhizome with roots (%) | 53.8 ± 20.2 | 20.9 ± 14.4 | 9.3 ± 6.4 | 38.5 ± 23.0 |
| (4.5–96.0) | (2.1–82.1) | (1.2–47.0) | (7.9–92.6) | |
| Allocation of biomass to leaves (%) | 17.5 ± 19.9 | 56.9 ± 13.4 | 57.4 ± 9.8 | 17.5 ± 24.3 |
| (0–71.4) | (12.0–88.0) | (24.4–77.4) | (0–71.5) | |
| Allocation of biomass to generative structures (%) | 0 | 0 | 4.9 ± 5.2 | 0 |
| (0.1–38.0) | ||||
| Residence time (weeks) | 28 | 18 | 12 | 16 |
| Week in the year | 12–40 | 22–40 | 24–36 | 30–44 |
| Temperature of water (°C) | 13.9 ± 5.23 | 16.3 ± 4.23 | 18.2 ± 3.46 | 13.1 ±6.12 |
| (5.2–24.5) | (8.3–24.5) | (13.0–24.5) | (3.4–24.4) |
Water characteristics at the sites (1–15) of P. alpinus
| Trait | PH | Cond. | Calcium | Total nitrogen | Total phosphorus | Water color | Flow | PAR |
|---|---|---|---|---|---|---|---|---|
| Site | (μS cm−1) | (mg Ca dm−3) | (mg N dm−3) | (mg P dm−3) | (mg Pt dm−3) | (m s−1) | (%) | |
| 1 | 7.7 | 272 ± 25 | 59.4 ± 1.2 | 2.6 ± 0.2 | 0.1 ± 0.0 | 20±3 | 0.5 ± 0.01 | 42.4 ± 1.2 |
| 2 | 7.9 | 257 ± 8 | 57.8 ± 1.0 | 2.2 ± 0.2 | 0.4 ± 0.0 | 19±1 | 0.2 ± 0.00 | 58.3 ± 4.6 |
| 3 | 7.2 | 197 ±13 | 44.4 ± 0.3 | 0.7 ± 0.3 | 0.1 ± 0.0 | 28±3 | 0.3 ± 0.02 | 43.4 ± 3.2 |
| 4 | 7.6 | 290 ± 23 | 58.6 ± 0.0 | 1.1 ±0.2 | 0.3 ± 0.1 | 26±8 | 0.4 ± 0.06 | 50.2 ± 3.4 |
| 5 | 7.3 | 206 ± 9 | 54.8 ± 3.5 | 0.4 ± 0.1 | 0.4 ± 0.1 | 18±6 | 0.1 ±0.01 | 73.5 ± 2.6 |
| 6 | 7.3 | 270 ± 23 | 67.3 ± 1.1 | 1.0 ± 0.1 | 0.1 ± 0.0 | 40±6 | 0.2 ± 0.03 | 94.9 ± 3.3 |
| 7 | 7.8 | 220 ± 35 | 41.7 ± 1.2 | 1.5 ± 0.9 | 0.2 ± 0.2 | 7 ± 1 | 0.5 ± 0.09 | 44.8 ± 1.6 |
| 8 | 7.5 | 255 ± 28 | 45.2 ± 1.7 | 1.5 ± 0.8 | 0.5 ± 0.2 | 21 ± 1 | 0.2 ± 0.06 | 45.9 ± 5.1 |
| 9 | 7.8 | 185 ±19 | 46.0 ± 0.2 | 1.5 ± 0.3 | 0.1 ± 0.0 | 20±2 | 0.1 ±0.01 | 70.7 ± 2.7 |
| 10 | 7.5 | 214 ± 19 | 42.2 ± 0.4 | 1.7 ± 0.2 | 0.2 ± 0.1 | 55±4 | 0.7 ± 0.02 | 68.8 ± 6.0 |
| 11 | 8.0 | 220 ± 12 | 77.0 ± 0.3 | 1.6 ± 0.5 | 0.3 ± 0.1 | 15±5 | 0.3 ± 0.02 | 49.9 ± 2.4 |
| 12 | 7.7 | 269 ± 21 | 61.3 ± 4.3 | 2.9 ± 2.2 | 0.4 ± 0.3 | 13±3 | 0.3 ± 0.07 | 64.6 ± 1.4 |
| 13 | 7.7 | 340 ± 47 | 62.1 ±0.3 | 0.9 ± 0.1 | 0.2 ± 0.1 | 29±6 | 0.3 ± 0.05 | 54.0 ± 0.4 |
| 14 | 7.2 | 231 ± 16 | 45.5 ± 0.4 | 1.0 ± 0.1 | 0.2 ± 0.1 | 15±3 | 0.1 ±0.01 | 44.3 ± 0.8 |
| 15 | 8.7 | 332 ± 24 | 56.6 ± 0.8 | 1.7 ± 0.3 | 0.3 ± 0.1 | 25±2 | 0.1 ±0.01 | 36.8 ± 1.7 |