Distribution and ecology of two interesting diatom species Navicula flandriae Van de Vijver et Mertens and Planothidium nanum Bąk, Kryk et Halabowski in rivers of Southern Poland and their spring areas
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05 juin 2021
À propos de cet article
Catégorie d'article: Original research paper
Publié en ligne: 05 juin 2021
Pages: 137 - 149
Reçu: 21 sept. 2020
Accepté: 15 déc. 2020
DOI: https://doi.org/10.2478/oandhs-2021-0013
Mots clés
© 2021 Dariusz Halabowski et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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Figure 3

Percentage of taxa (%) in diatom assemblages at the sampling sites (relative abundance >5% at least at one site)_
Taxa | S1 | S2 | S3 | S4 | S5 | S6 | S7 |
---|---|---|---|---|---|---|---|
1.0 | 0.5 | 16.9 | 16.4 | - | 0.9 | 0.9 | |
- | - | 1.4 | 3.7 | - | - | 5.5 | |
- | 0.5 | - | 1.5 | - | - | 9.1 | |
- | - | 0.7 | 5.2 | - | - | 2.7 | |
- | - | 0.7 | 18.7 | - | - | 0.9 | |
- | - | - | 5.2 | - | - | - | |
- | - | 9.2 | - | - | - | - | |
0.5 | 5.4 | - | - | - | - | - | |
- | 10.3 | - | - | - | - | - | |
1.5 | 7.6 | - | - | 10.2 | 15.1 | - | |
- | - | 2.1 | 1.5 | - | - | 9.1 | |
- | - | 19.7 | - | - | - | - | |
3.4 | 8.7 | - | - | - | - | - | |
28.2 | 6.0 | - | 0.8 | 75.2 | 74.9 | - | |
0.5 | 8.2 | - | - | - | - | - | |
- | 5.4 | - | - | 4.4 | 0.5 | - | |
- | 6.0 | - | - | - | - | - | |
10.2 | 6.5 | - | - | 0.7 | - | - | |
- | - | 0.7 | 0.8 | - | - | 5.5 | |
- | - | - | - | - | - | 6.4 | |
17.0 | 0.5 | - | - | - | - | - | |
- | - | 5.6 | 3.0 | - | - | - | |
- | 0.5 | 2.8 | 1.5 | - | - | 33.6 |
Physical and chemical parameters of water, velocity, morphometric features of the studied rivers (sampling sites)_
Parameter | Unit | S1 | S2 | S3 | S4 | S5 | S6 | S7 |
---|---|---|---|---|---|---|---|---|
Riverbed width | m | 7.10 | 4.30 | 4.07 | 3.60 | 2.70 | 8.10 | 7.00 |
Riverbed depth | cm | 27.0 | 21.0 | 14.0 | 58.5 | 30.0 | 105.0 | 26.5 |
Flow velocity | m s−1 | 0.055 | 0.451 | 0.105 | 0.722 | 0.023 | 0.170 | 0.143 |
Temperature | °C | 19.3 | 19.4 | 10.4 | 11.8 | 17.5 | 16.5 | 11.0 |
pH | 8.3 | 8.2 | 8.7 | 8.6 | 6.9 | 7.8 | 6.8 | |
Conductivity | μS cm−1 | 14 630 | 35 700 | 280 | 320 | 400 | 9290 | 330 |
Total dissolved solids | mg dm−3 | 7320 | 17 840 | 140 | 150 | 200 | 4640 | 160 |
Chlorides | 6160 | 16 180 | 10 | 12 | 29 | 3960 | 14 | |
Dissolved oxygen | 4.54 | 5.29 | 4.07 | 4.35 | 3.24 | 2.24 | 4.21 | |
Sulfates | 660 | 480 | 40 | 41 | 42 | 212 | 12 | |
Iron | 0.36 | 0.91 | 0.06 | 0.25 | 0.86 | 0.30 | 0.01 | |
Ammonium | 0.58 | 1.83 | 0.00 | 0.12 | 0.38 | 1.03 | 0.01 | |
Nitrites | 0.532 | 2.687 | 0.000 | 0.143 | 0.069 | 2.702 | 0.054 | |
Nitrates | 0.00 | 0.00 | 2.66 | 6.65 | 1.33 | 21.26 | 11.08 | |
Total nitrogen | 1.9 | 4.1 | 2.3 | 2.5 | 5.9 | 2.5 | 4.1 | |
Phosphates | 0.06 | 0.06 | 0.01 | 0.04 | 0.25 | 0.44 | 0.11 | |
Total phosphorus | 0.210 | 0.240 | 0.130 | 0.100 | 0.065 | 0.380 | < 0.050 | |
Biochemical Oxygen Demand (BOD) | 7 | 23 | < 3 | < 3 | < 3 | 4 | < 3 | |
Total Organic Carbon (TOC) | 2.5 | 3.5 | < 2.0 | < 2.0 | 9.8 | 8.7 | < 2.0 | |
Calcium | 412 | 696 | 57 | 60 | 70 | 190 | 78 | |
Magnesium | 75.57 | 476.64 | 0.73 | 0.12 | 35.36 | 91.25 | 19.56 | |
Total hardness | mg CaCO3 dm−3 | 1340 | 3700 | 145 | 150 | 320 | 850 | 275 |
Alkalinity | 360 | 280 | 95 | 130 | 150 | 235 | 150 |
Number of diatom taxa, values of the diatom index (IO) for the studied rivers (sampling sites)
Characteristic | the Bolina River, upper reaches | the Bolina River, lower reaches | the Centuria River, upper reaches | the Centuria River, lower reaches | the Mitręga River, lower reaches | the Mleczna River, lower reaches | the Wiercica River, upper reaches |
---|---|---|---|---|---|---|---|
Number of taxa | 39 | 45 | 43 | 48 | 15 | 19 | 24 |
Diatom index (IO) | 0.254 | 0.294 | 0.582 | 0.557 | 0.285 | 0.236 | 0.632 |
General characteristics of the studied rivers (sampling sites)
Geographic coordinates/Characteristic features | the Bolina River, upper reaches | the Bolina River, lower reaches | the Centuria River, upper reaches | the Centuria River, lower reaches | the Mitręga River, lower reaches | the Mleczna River, lower reaches | the Wiercica River, upper reaches |
---|---|---|---|---|---|---|---|
Coordinate N | 50°13′47.6″ | 50°14′44.5″ | 50°24′52.7″ | 50°21′55.2″ | 50°26′04.2″ | 50°07′01.1″ | 50°41′18.0″ |
Coordinate E | 19°05′08.5″ | 19°06′04.7″ | 19°29′11.4″ | 19°29′40.9″ | 19°17′57.4″ | 19°04′29.2″ | 19°24′42.0″ |
Altitude (m a.s.l.) | 262 | 257 | 343 | 311 | 300 | 236 | 309 |
Abiotic type | (type 5) mid-altitude siliceous streams with a fine particulate substrate | (type 6) mid-altitude calcareous streams with a fine particulate substrate on loess | (type 17) lowland sandy streams |