Figure 1
Distribution of the surveyed river sites (N = 206)
Table 1
Descriptive statistics of major habitat characteristics of the surveyed rivers (N = 206)
| Environmental variables | Units | Min. | Median | Max | Coefficient variation |
|---|---|---|---|---|---|
| Physical and chemical parameters of water | |||||
| pH | - | 6.90 | 7.76 | 9.30 | 0.04 |
| Alkalinity | mg CaCO3 l-1 | 37 | 165 | 490 | 0.36 |
| Conductivity | μS cm-1 | 192 | 449 | 2990 | 0.60 |
| Total phosphorus | mg P l-1 | 0.02 | 0.19 | 3.47 | 1.48 |
| Reactive phosphorus | mg PO43- l-1 | 0.02 | 0.35 | 8.58 | 1.80 |
| Nitrate nitrogen | mg N l-1 | 0.01 | 0.57 | 12.90 | 1.48 |
| Ammonium nitrogen | 0.00 | 0.16 | 12.96 | 2.78 | |
| Dimensions of a riverbed | |||||
| Average width | m | 1.5 | 5.5 | 45.0 | 0.97 |
| Average depth | 0.13 | 0.59 | 1.65 | 0.54 | |
| Hydromorphological metrics | |||||
| Altitude | m a.s.l. | 1 | 97 | 464 | 0.65 |
| HQA index | 0-100 | 15 | 39 | 79 | 0.34 |
| HMS index | 0-120 | 0 | 29 | 109 | 0.93 |
| RHQ index | 50-600 | 107 | 305 | 490 | 0.25 |
| RHM index | 0-240 | 0 | 34 | 174 | 0.98 |
| Shading of riverbed | % | 0 | 12 | 90 | 1.15 |
| Bottom sediments | |||||
| Granulometry index | 1-6 | 1.00 | 2.09 | 5.00 | 0.30 |
| Cobble | 0 | 0 | 53 | 2.69 | |
| Gravel/pebble | 0 | 10 | 93 | 1.21 | |
| Sand | % | 0 | 57 | 100 | 0.56 |
| Silt | 0 | 7 | 100 | 1.35 | |
| Peat | 0 | 0 | 93 | 5.85 | |
| Anthropogenic | 0 | 0 | 100 | 3.00 | |
| Flow types | |||||
| Flow type index | 1-6 | 1.00 | 1.51 | 4.13 | 0.42 |
| Chute | 0 | 0 | 19 | 1.82 | |
| Broken standing waves | 0 | 0 | 10 | 3.21 | |
| Unbroken standing waves | % | 0 | 0 | 58 | 2.21 |
| Rippled | 0 | 13 | 93 | 1.04 | |
| Smooth | 0 | 63 | 100 | 0.49 | |
| No perceptible flow | 0 | 3 | 100 | 1.79 | |
| Land use in a river valley | |||||
| Forest | 0 | 19 | 100 | 0.92 | |
| Wetland | % | 0 | 0 | 74 | 1.75 |
| Grassland | 0 | 30 | 100 | 0.80 | |
| Arable land | 0 | 0 | 81 | 1.56 | |
| Urban area | 0 | 0 | 100 | 1.63 | |
Table 2
Descriptive statistics of concentrations of elements in water of selected Elodea canadensis rivers (based on data from the State Environmental Monitoring)
| Elements | Units | Min. | Median | Max | Coefficient variation |
|---|---|---|---|---|---|
| Al (aluminum) | μg Al l-1 | 5 | 24 | 370 | 1.38 |
| As (arsenic) | μg As l-1 | 0.3 | 1.3 | 32.5 | 1.54 |
| B (boron) | μg B l-1 | 9 | 26 | 409 | 1.09 |
| Ba (bar) | μg Ba l-1 | 5 | 35 | 108 | 0.66 |
| Ca (calcium) | mg Ca l-1 | 19.4 | 79.6 | 191.1 | 0.37 |
| Cd (cadmium) | μg Cd l-1 | 0.01 | 0.10 | 7.70 | 2.64 |
| Cl (chlorine) | mg Cl- l-1 | 3.5 | 17.6 | 440.1 | 1.52 |
| Cr (chromium) | μg Cr l-1 | 0.02 | 0.63 | 42.50 | 2.23 |
| Cu (cooper) | μg Cu l-1 | 0.20 | 2.77 | 101.00 | 2.08 |
| F (fluorine) | mg F- l-1 | 0.02 | 0.18 | 1.75 | 1.18 |
| Fe (iron) | μg Fe l-1 | 1 | 133 | 1172 | 1.06 |
| Hg (mercury) | μg Hg l-1 | 0.01 | 0.10 | 3.28 | 1.87 |
| K (potassium) | mg K l-1 | 0.2 | 4.0 | 30.0 | 0.99 |
| Mg (magnesium) | mg Mg l-1 | 2.0 | 9.9 | 35.8 | 0.57 |
| Mn (manganese) | μg Mn l-1 | 2 | 110 | 492 | 0.85 |
| Na (sodium) | mg Na l-1 | 0.7 | 9.5 | 247.0 | 1.67 |
| Ni (nickel) | μg Ni l-1 | 0.25 | 2.50 | 34.73 | 1.35 |
| Pb (lead) | μg Pb l-1 | 0.20 | 2.50 | 33.00 | 1.48 |
| S (sulfur) | mg SO42- l-1 | 4.6 | 44.9 | 342.9 | 0.82 |
| Se (selenium) | μg Se l-1 | 0.3 | 2.9 | 25.0 | 1.05 |
| Zn (zinc) | μg Zn l-1 | 0.3 | 10.0 | 244.8 | 1.89 |
Table 3
Factor loadings of the first three principal components
| Environmental variables | Factorl | Factor 2 | Factor 3 |
|---|---|---|---|
| Physical and chemical parameters of water | |||
| pH | 0.198 | 0.089 | 0.199 |
| Alkalinity | 0.019 | 0.539 | -0.166 |
| Conductivity | -0.057 | 0.451 | -0.149 |
| Total phosphorus | -0.061 | 0.934* | -0.036 |
| Reactive phosphorus | -0.040 | 0.904* | 0.005 |
| Nitrate nitrogen | 0.041 | 0.094 | 0.013 |
| Ammonia nitrogen | -0.035 | 0.718* | -0.033 |
| Dimensions of a riverbed | |||
| Average width | 0.282 | -0.215 | 0.042 |
| Average depth | 0.213 | -0.281 | -0.248 |
| Hydromorphological metrics | |||
| Altitude | 0.106 | -0.149 | 0.060 |
| HQA index | 0.409 | -0.074 | 0.789* |
| HMS index | -0.759* | 0.001 | -0.361 |
| RHQ index | 0.614* | -0.174 | 0.150 |
| RHM index | -0.788* | -0.040 | -0.322 |
| Granulometry index | -0.423 | -0.195 | 0.432 |
| Flow type index | 0.127 | -0.192 | 0.595 |
| Shading of riverbed | 0.145 | 0.036 | 0.682* |
| Land use in a river valley at a distance of 50 m from the banks | |||
| Forests | 0.357 | -0.070 | 0.731* |
| Wetlands | 0.224 | -0.059 | 0.028 |
| Grassland | 0.482 | 0.050 | -0.617* |
| Arable land | -0.567 | 0.213 | -0.085 |
| Urban area | -0.819* | -0.127 | -0.021 |
| Eigenvalues (λ) | 3.546 | 3.048 | 2.967 |
| Percentage variance (%) | 16.1 | 13.9 | 13.5 |
Figure 2
Percentage of each flow type (chute, broken standing waves, unbroken standing waves, rippled, smooth and no perceptible flow) in relation to all Elodea canadensis sites in four biocenotic types of rivers based on the RHS method (Environment Agency 2003; Szoszkiewicz et al.2012)
Figure 3
Percentage of each bottom sediment type (cobble, gravel, sand, silt, peat and anthropogenic) in relation to all Elodea canadensis sites in four biocenotic types of rivers based on the RHS method (Environment Agency 2003; Szoszkiewicz et al. 2012)
Figure 4
Percentage of each land-use type in river valleys (forest, wetlands, grassland, arable land, urban area) in relation to land use at all Elodea canadensis sites in four biocenotic types of rivers based on the RHS method (Environment Agency 2003; Szoszkiewicz et al. 2012)
Figure 5
DCA ordination diagrams of macrophyte species. The circle indicates the most common species occurring with Elodea canadensis
For comparison, the CCA ordination diagrams of plant communities accompanying Elodea canadensis in Polish lakes examined during the State Environmental Monitoring (area > 50 ha) and presented in Kolada & Kutyła (2013), Fig. 4b
Abbreviations:
Acocal – Acorus calamus, Alipla – Alisma plantago-aquatica, Bataqu – Batrachium aquatile, Batcir – Batrachium circinatum, Batflu – Batrachium fluitans, Battri – Batrachium trichophyllum, Batsp_ – Batrachospermum sp., Berere – Berula erecta, Brariv – Brachythecium rivulare, Butumb – Butomusum bellatus, Calcop – Callitriche cophocarpa, Calham – Callitriche hamulata, Calpal – Caltha palustris, Calpas – Calla palustris, Calver – Callitriche verna, Calsp_ – Callitriche sp., Caracu – Carex acutiformis, Cargra – Carex gracilis, Carpan – Carexpaniculata, Carpse – Carex, Carrip – Carex riparia, Carros – Carex rostrata, Carves – Carex vesicaria, Cerdem – Ceratophyllum demersum, Cersub – Ceratophyllum submersum, Chaglo – Chara globularis, Cicvir – Cicuta virosa, Clasp_ – Cladophora sp., Concon – Conocephalum conicum, Crafil – Cratoneuron filicinum, Elepal – Eleocharis palustris, Elocan – Elodea canadensis, Entsp_ – Enteromorpha sp., Equflu – Equisetum fluviatile, Equpal – Equisetum palustre, Fonant – Fontinalis antipyretica, Glyflu – Glyceria fluitans, Glymax – Glyceria maxima, Hilriv – Hildenbrandia rivularis, Hotpal – Hottonia palustris, Hydmor – Hydrocharis morsus-ranae, Hygten – Hygroamblystegium tenax, Iripse – Iris pseudacorus, Lemgib – Lemna gibba, Lemmin – Lemna minor, Lemtri – Lemna trisulca, Leprip – Leptodictyum riparium, Lyceur – Lycopus europaeus, Lysthy – Lysimachia thyrsiflora, Lysvul – Lysimachia vulgaris, Marpol – Marchantia polymorpha, Menaqu – Mentha aquatica, Micsp_ – Microspora sp., Mousp_ – Mougeotia sp., Myopal – Myosotis palustris, Myrspi – Myriophyllum spicatum, Myrvet – Myriophyllum verticillatum, Nuplut – Nuphar lutea, Oedsp_ – Oedogonium sp., Oenaqu – Oenanthe aquatica, Pelsp_ – Pellia sp., Peupal – Peucedanum palustre, Phaaru – Phalaris arundinacea, Phosp_ – Phormidium sp., Phraus – Phragmites australis, Plarip – Platyhypnidium riparioides, Polamp – Polygonum amphibium, Potalp – Potamogeton alpinus, Potber – Potamogeton berchtoldii, Potcom – Potamogeton compressus, Potcri – Potamogeton crispus, Potluc – Potamogeton lucens, Potnat – Potamogeton natans, Potnod – Potamogeton nodosus, Potobt – Potamogeton obtusifolius, Potpec – Potamogeton pectinatus, Potper – Potamogeton perfoliatus, Potpra – Potamogeton praelongus, Potpus – Potamogeton pusillus, Pottri – Potamogeton trichoides, Ranlin – Ranunculus lingua, Ransce – Ranunculus sceleratus, Rhisp_ – Rhizoclonium sp., Roramp – Rorippa amphibia, Rumhyd – Rumexhydrolapathum, Sagsag – Sagittaria sagittifolia, Schlac – Schoenoplectus lacustris, Scisyl – Scirpus sylvaticus, Scrumb – Scrophularia umbrosa, Scugal – Scutellaria galericulata, Siulat – Sium latifolium, Spaeme – Sparganium emersum, Spaere – Sparganium erectum, Spipol – Spirodela polyrhiza, Spisp_ – Spirogyra sp., Stralo – Stratiotes aloides, Typang – Typha angustifolia, Typlat – Typha latifolia, Ulosp_ – Ulothrix sp., Vausp_ – Vaucheria sp., Verana – Veronica anagallis-aquatica, Verbec – Veronica beccabunga, Zanpal – Zannichellia palustris
List of the surveyed river sites (N = 206) with Elodea canadensis. Geographical names are based on the National Register of Geographical Names and topographic maps on a scale of 1:10 000.
| No. | Name of the river | The nearest place | Province | Year of survey | Geographical coordinates | No. of a grid ATPOL square | Cover of E. canadensis* | |
|---|---|---|---|---|---|---|---|---|
| 1. | Baczyna | Lubin, ul. Sikorskiego | dolnośląskie | 2013 | 51°23′38.6″N | 16°12′14.1″E | BE13 | 2 |
| 2. | Biała (Biela) | Struga | lubuskie | 2008 | 52°06′34.8″N | 15°07′42.0″E | AD36 | 3 |
| 3. | Białka | Koniecpol | śląskie | 2011 | 50°45′43.2″N | 19°40′33.2″E | DE87 | 5 |
| 4. | BiałkaLelowska | Lelów | śląskie | 2010 | 50°41′09.2″N | 19°37′17.7″E | DE97 | 4 |
| 5. | Blizna | Szczebra | podlaskie | 2004 | 53°54′27.0″N | 22°58′49.3″E | FB29 | 2 |
| 6. | Błędzianka | PuszczaRomnicka | warmińsko-mazurskie | 2011 | 54°20′25.9″N | 22°35′03.7″E | FA86 | 3 |
| 7. | Bóbr | Żelisław | lubuskie | 2005 | 51°34′18.0″N | 15°24′43.0″E | AD98 | 1 |
| 8. | Brda | Piła - Młyn | kujawsko-pomorskie | 2005 | 53°30′49.2″N | 17°53′06.4″E | CB85 | 1 |
| 9. | Brda | Zapora (Mylof) | pomorskie | 2006 | 53°46′22.1″N | 17°43′07.6″E | CB54 | 3 |
| 10. | Bukówka (Kamionka) | Kuźniczka | wielkopolskie | 2005 | 52°56′46.1″N | 16°12′38.3″E | BC44 | 2 |
| 11. | Bytowa | Bytów | pomorskie | 2013 | 54°10′02.2″N | 17°29′04.0″E | CB03 | 4 |
| 12. | Chotla | ZaspyMałe | zachodniopomorskie | 2006 | 54°01′44.2″N | 16°09′30.5″E | BB14 | 1 |
| 13. | Ciemna | Tursko | wielkopolskie | 2009 | 51°52′19.4″N | 17°56′49.0″E | CD65 | 1 |
| 14. | Cieszynka | Bukowo | zachodniopomorskie | 2008 | 53°05′45.1″N | 16°11′55.6″E | BC24 | 5 |
| 15. | Cieszynka | Człopa, ul. Młyńska | zachodniopomorskie | 2008 | 53°05′23.1″N | 16°07′19.2″E | BC23 | 1 |
| 16. | Czapliniecka Struga | Czaplinek | zachodniopomorskie | 2013 | 53°33′43.3″N | 16°13′48.9″E | BB74 | 4 |
| 17. | Czarna | Okonek | wielkopolskie | 2011 | 53°32′08.3″N | 16°51′13.1″E | BB78 | 3 |
| 18. | Czarna Przemsza | Sosnowiec, ul. Będzińska | śląskie | 2006 | 50°17′51.8″N | 19°08′15.6″E | DF33 | 1 |
| 19. | Czarna Struga | Nowa Sól, os. Konstytucji 3 maja | lubuskie | 2013 | 51°48′20.3″N | 15°41 '32.1 "E | BD60 | 1 |
| 20. | Czarna Woda | Ostrowo | pomorskie | 2006 | 54°49′49.6″N | 18°14′22.8″E | CA38 | 3 |
| 21. | Czarna Woda | Sępolno | wielkopolskie | 2008 | 52°22′35.8″N | 16°00′40.7″E | BD02 | 2 |
| 22. | Czarnka | Opole, ul. Adama | opolskie | 2011 | 50°37′04.9″N | 17°59′37.0″E | CF05 | 4 |
| 23. | Czerska Struga | Czersk | pomorskie | 2013 | 53°47′33.0″N | 17°58′42.0″E | CB46 | 3 |
| 24. | Czerska Struga | Końskie Błota | pomorskie | 2006 | 53°43′04.0″N | 17°53′35.9″E | CB55 | 4 |
| 25. | Czerwona | Łasin Koszaliński | zachodniopomorskie | 2006 | 54°13′37.5″N | 15°48′06.6″E | BA92 | 1 |
| 26. | Dar (Sienica) | Dębno | zachodniopomorskie | 2008 | 52°44′44.1″N | 14°41 '28.1 "E | AC53 | 2 |
| 27. | Dobrzyca | Czapla | zachodniopomorskie | 2004 | 53°16′58.2″N | 16°34′07.2″E | BC06 | 5 |
| 28. | Dojca | Obra | wielkopolskie | 2008 | 52°04′29.3″N | 16°04′34.1″E | BD32 | 3 |
| 29. | dopływ Grabowej | Wielin (rez. Wieleń) | zachodniopomorskie | 2005 | 54°09′31.5″N | 16°42′27.7″E | BB08 | 4 |
| 30. | dopływ Krąpielicy (Młynówki) | Stargard Szczeciński, Park Panorama | zachodniopomorskie | 2013 | 53°20′30.9″N | 15°03′11.7″E | AB96 | 4 |
| 31. | Drawa | Sitnica | zachodniopomorskie | 2009 | 53°06′52.6″N | 15°53′24.2″E | BC22 | 6 |
| 32. | Dzierżęcinka | Koszalin, ul. Batalionów Chłopskich | zachodniopomorskie | 2007 | 54°12′21.8″N | 16°10′10.4″E | BB04 | 3 |
| 33. | Flinta | Jaracz | wielkopolskie | 2008 | 52°42′26.3″N | 16°51′41.5″E | BC68 | 8 |
| 34. | Flinta | Ryczywół | wielkopolskie | 2009 | 52°48′34.1″N | 16°50′45.0″E | BC58 | 2 |
| 35. | Flinta | Skrzetusz | wielkopolskie | 2005 | 52°50′43.4″N | 16°48′05.3″E | BC58 | 2 |
| 36. | Gizela (Gryżlina) | Zajączki | warmińsko-mazurskie | 2005 | 53°33′26.5″N | 19°52′57.9″E | DB78 | 2 |
| 37. | Główna | Mechowo | wielkopolskie | 2007 | 52°26′47.9″N | 17°02′55.9″E | BC99 | 2 |
| 38. | Główna | Poznań, ul. Hlonda | wielkopolskie | 2007 | 52°25′32.4″N | 16°57′56.3″E | BD09 | 1 |
| 39. | Gniły Potok | Mościsko | dolnośląskie | 2011 | 50°46′52.8″N | 16°35′35.4″E | BE86 | 9 |
| 40. | Grabiczek | Grabin | warmińsko-mazurskie | 2004 | 53°37′40.3″N | 20°02′25.3″E | DB69 | 2 |
| 41. | Grabowa | Sulechówko | zachodniopomorskie | 2011 | 54°16′25.8″N | 16°33′54.9″E | BA97 | 6 |
| 42. | Graniczna | Żarkowo | pomorskie | 2011 | 54°22′31.7″N | 17°19′40.0″E | CA82 | 3 |
| 43. | Gryżynka (Gryżyński Potok) | Grabin | lubuskie | 2003 | 52°07′23.7″N | 15°16′45.9″E | AD27 | 2 |
| 44. | Gwda | Piła - Kalina | wielkopolskie | 2009 | 53°06′18.7″N | 16°47′02.9″E | BC28 | 1 |
| 45. | Ilanka | Maczków | lubuskie | 2004 | 52°16′17.7″N | 14°45′32.3″E | AD14 | 1 |
| 46. | Iławka | Młody Bór | warmińsko-mazurskie | 2007 | 53°32′14.4″N | 19°40′15.4″E | DB77 | 4 |
| 47. | Jerzgnia | Ciszewo | podlaskie | 2007 | 53°37′28.2″N | 22°42′11.7″E | FB67 | 1 |
| 48. | Kanal Nowa Ulga | Warszawa, os. Iskra | mazowieckie | 2013 | 52°13′13.8″N | 21°06′03.4″E | ED27 | 4 |
| 49. | Kanał Augustowski | Białobrzegi | podlaskie | 2012 | 53°48′18.3″N | 22°57′57.8″E | FB49 | 3 |
| 50. | Kanał Grójecki | Wola Podłężna | wielkopolskie | 2012 | 52°14′27.2″N | 18°20′42.0″E | CD28 | 2 |
| 51. | Kanał Lodowy | Gidle | łódzkie | 2007 | 50°57′19.1″N | 19°28′13.6″E | DE66 | 5 |
| 52. | Kanał Łeby | Cecenowo | pomorskie | 2006 | 54°39′03.3″N | 17°33′29.8″E | CA53 | 6 |
| 53. | Kanał Łęg - Klewiec | Krawce | podkarpackie | 2014 | 50°31′15.2″N | 21°53′47.3″E | FF13 | 4 |
| 54. | Kanał Młyński | Słupsk | pomorskie | 2011 | 54°27′44.7″N | 17°02′17.3″E | CA70 | 2 |
| 55. | Kanał Słupi | Słupsk | pomorskie | 2011 | 54°26′55.9″N | 17°01′58.4″E | CA70 | 6 |
| 56. | Kanał Turośl | pow. Turośli | podlaskie | 2011 | 53°23′34.4″N | 21°44′05.3″E | FB91 | 1 |
| 57. | Kanał Warty | Częstochowa | śląskie | 2011 | 50°48′19.0″N | 19°08′03.8″E | DE83 | 1 |
| 58. | Kanał Zuzanka | Włocławek, ul. Graniczna | pomorskie | 2013 | 52°38′52.8″N | 19°08′30.5″E | DC73 | 3 |
| 59. | Kania | Gostyń, ul. Fabryczna | wielkopolskie | 2013 | 51°52′53.2″N | 17°01′14.3″E | BD69 | 5 |
| 60. | Kania | pon. Gostynia | wielkopolskie | 2008 | 51°54′36.4″N | 17°00′54.2″E | BD59 | 3 |
| 61. | Kicz | Tuchola | kujawsko-pomorskie | 2013 | 53°35′13.9″N | 17°51′21.8″E | CB75 | 2 |
| 62. | Kirsna | Swajnie | warmińsko-mazurskie | 2006 | 54°01′28.5″N | 20°30′17.8″E | EB22 | 3 |
| 63. | Kisewa (Kisewska Struga) | Nowa Wieś Lęborska | pomorskie | 2013 | 54°33′30.8″N | 17°43′45.1″E | CA64 | 4 |
| 64. | Kłoniecznica | Kłonecznica | pomorskie | 2011 | 53°58′48.1″N | 17°30′33.6″E | CB23 | 5 |
| 65. | Kłoniecznica | Mielno | pomorskie | 2009 | 53°56′34.9″N | 17°29′59.9″E | CB33 | 4 |
| 66. | Konopka | Częstochowa - Sabinów | śląskie | 2011 | 50°46′18.3″N | 19°05′43.0″E | DE83 | 3 |
| 67. | Kończak | Podlesie | wielkopolskie | 2004 | 52°45′02.4″N | 16°40′29.6″E | BC67 | 5 |
| 68. | Korytnica | Jaźwiny | zachodniopomorskie | 2004 | 53°10′00.2″N | 15°54′58.6″E | BC12 | 2 |
| 69. | Krztynia | Tęgobórz | śląskie | 2011 | 50°38′33.0″N | 19°47′57.4″E | DF08 | 5 |
| 70. | Krzycki Rów | Krzekotów | kujawsko-pomorskie | 2004 | 52°46′46.8″N | 17°59′12.2″E | CC66 | 5 |
| 71. | Kulawa | Laska | pomorskie | 2009 | 53°56′08.9″N | 17°32′01.9″E | CB33 | 6 |
| 72. | Kulawa | Wawrzonowo | pomorskie | 2011 | 53°57′08.8″N | 17°31′59.3″E | CB33 | 4 |
| 73. | Kwacza | Kwakowo (odc. nie renat.) | pomorskie | 2012 | 54°22′06.5″N | 17°01′10.0″E | CA80 | 4 |
| 74. | Kwacza | Kwakowo (odc. renat.) | pomorskie | 2012 | 54°22′32.6″N | 17°01′47.2″E | CA80 | 3 |
| 75. | Kwisa | Luboszów | dolnośląskie | 2006 | 51°25′53.9″N | 15°23′56.9″E | AE07 | 3 |
| 76. | Kwisa | T rzebów | lubuskie | 2007 | 51°33′02.7″N | 15°23′38.9″E | AD98 | 5 |
| 77. | Lega | Olecko, ul. Partyzantów | warmińsko-mazurskie | 2004 | 54°02′21.1″N | 22°30′31.2″E | FB15 | 1 |
| 78. | Leśna Prawa | Topiło (rez. Olszynka Mysliszcze) | podlaskie | 2004 | 52°38′50.8″N | 23°40′24.4″E | GC64 | 4 |
| 79. | Lewińska Struga | Kołczewo | zachodniopomorskie | 2014 | 53°58′44.8″N | 14°37′56.6″E | AB24 | 7 |
| 80. | Liswarta | Tanina | śląskie | 2007 | 50°45′13.7″N | 18°46′56.7″E | DE81 | 6 |
| 81. | Liśnica | Białogard, ul. Nadbrzeżna | zachodniopomorskie | 2013 | 54°00′14.3″N | 15°59′02.8″E | BB23 | 2 |
| 82. | Liwiec | Nadkole | mazowieckie | 2005 | 52°35′25.1″N | 21°35′09.1″E | FC80 | 3 |
| 83. | Lubsza (Lubica) | Stargard Gubinski | lubuskie | 2006 | 51°53′01.6″N | 14°47′13.1″E | AD54 | 6 |
| 84. | Lutynia | Wilkowyja | wielkopolskie | 2006 | 51°59′41.1″N | 17°32′17.5″E | CD42 | 6 |
| 85. | Lutynia | Wola Książęca | wielkopolskie | 2006 | 51°57′57.1″N | 17°34′12.2″E | CD53 | 7 |
| 86. | Łabianka | Łabno | podlaskie | 2007 | 53°24′18.5″N | 21°56′28.9″E | FB82 | 1 |
| 87. | Łącza (Złoty Potok) | Czerwieńsk | lubuskie | 2005 | 52°00′46.7″N | 15°25′32.6″E | AD48 | 6 |
| 88. | Łupawa | Smołdzino, ul. Mostowa | pomorskie | 2011 | 54°39′43.2″N | 17°12′48.6″E | CA51 | 2 |
| 89. | Łutownia | Stara Bialowieża | podlaskie | 2004 | 52°44′01.8″N | 23°47′07.9″E | GC55 | 3 |
| 90. | Mała Panew | Brusiek | śląskie | 2009 | 50°34′49.3″N | 18°49′15.8″E | DF01 | 1 |
| 91. | Mała Wełna | Kiszkowo | wielkopolskie | 2004 | 52°35′23.5″N | 17°16′05.6″E | CC81 | 5 |
| 92. | Mała Wkra (Wikierka) | Stare Miasto | warmińsko-mazurskie | 2009 | 53°27′52.4″N | 20°00′22.7″E | DB89 | 7 |
| 93. | Meszna | Dziedzice-Kąty | wielkopolskie | 2007 | 52°14′34.8″N | 17°50′38.1″E | CD25 | 2 |
| 94. | Miała | Kamiennik | wielkopolskie | 2006 | 52°48′31.7″N | 15°59′03.3″E | BC52 | 3 |
| 95. | Miała | Piłka | wielkopolskie | 2004 | 52°47′44.1″N | 16°03′07.9″E | BC53 | 7 |
| 96. | Mierzawa | Słaboszowice | świętokrzyskie | 2007 | 50°35′13.6″N | 20°11′13.4″E | EF01 | 2 |
| 97. | Mierzawa | Tarnawa | świętokrzyskie | 2014 | 50°33′55.8″N | 20°02′56.8″E | EF00 | 2 |
| 98. | Mławka | Szreńsk | mazowieckie | 2004 | 53°00′31.6″N | 20°07′40.9″E | EC30 | 5 |
| 99. | Moszczenica | Sławno, ul. Wojska Polskiego | zachodniopomorskie | 2013 | 54°21′52.3″N | 16°40′27.0″E | BA87 | 4 |
| 100. | Mroczanka | Mroczno | warmińsko-mazurskie | 2009 | 53°20′56.6″N | 19°44′16.2″E | DB97 | 6 |
| 101. | Murynia | Spie | podkarpackie | 2014 | 50°23′24.8″N | 21°54′05.8″E | FF23 | 6 |
| 102. | Narew | Siemieniakowszczyzna | podlaskie | 2003 | 52°54′09.1″N | 23°53′39.3″E | GC35 | 1 |
| 103. | Nida (Wkra) | Nidzica, Park Gregoriusa | warmińsko-mazurskie | 2012 | 53°21′41.1″N | 20°25′10.0″E | EB92 | 5 |
| 104. | Niesób (Samica) | Kępno | wielkopolskie | 2013 | 51°16′52.0″N | 17°59′25.9″E | CE25 | 3 |
| 105. | Noteć | Ciszewo | wielkopolskie | 2005 | 53°03′07.1″N | 16°54′03.4″E | BC38 | 2 |
| 106. | Noteć | Kolonia Mchówek | kujawsko-pomorskie | 2004 | 52°25′40.9″N | 18°41′04.9″E | DD00 | 3 |
| 107. | Noteć | Morzyce | wielkopolskie | 2004 | 52°25′23.3″N | 18°37′09.4″E | DD00 | 1 |
| 108. | Ochnia | Kutno, ul. Zamkowa | łódzkie | 2013 | 52°13′51.4″N | 19°21′11.6″E | DD25 | 2 |
| 109. | Okalica | Lębork, ul. Chopina | pomorskie | 2013 | 54°32′25.9″N | 17°45′22.6″E | CA64 | 6 |
| 110. | Oleśnica | Stolec | łódzkie | 2009 | 51°22′01.8″N | 18°41′36.6″E | DE20 | 2 |
| 111. | Ołobok | Sławin | wielkopolskie | 2004 | 51°38′28.7″N | 18°03′09.9″E | CD86 | 4 |
| 112. | Omulew | Obory | mazowieckie | 2005 | 53°19′03.9″N | 21°05′16.3″E | EC06 | 4 |
| 113. | Orla | Jutrosin | wielkopolskie | 2013 | 51°39′35.8″N | 17°10′56.1″E | CD80 | 2 |
| 114. | Orla | Skałów | wielkopolskie | 2009 | 51°48′18.0″N | 17°22′57.3″E | CD71 | 2 |
| 115. | Orzyc | Przeradowo | mazowieckie | 2005 | 52°46′36.9″N | 21°12′47.5″E | EC67 | 1 |
| 116. | Ostroroga | Biezdrowo | wielkopolskie | 2004 | 52°41′17.8″N | 16°18′08.8″E | BC64 | 2 |
| 117. | Ostróżek | Szczukowice | świętokrzyskie | 2014 | 50°53′16.6″N | 20°30′54.8″E | EE73 | 4 |
| 118. | Paklica | Międzyrzecz, ul. Garncarska | lubuskie | 2008 | 52°26′36.1″N | 15°34′31.1″E | AC99 | 2 |
| 119. | Parsęta | Dębczyno | zachodniopomorskie | 2005 | 53°59′01.0″N | 16°00′18.0″E | BB23 | 4 |
| 120. | Parsęta | Pustkowie | zachodniopomorskie | 2014 | 53°44′36.5″N | 16°32′09.8″E | BB56 | 3 |
| 121. | Parsęta | Stare Dębno | zachodniopomorskie | 2005 | 53°52′22.5″N | 16°10′35.8″E | BB34 | 3 |
| 122. | Pasłęka | Wymój | warmińsko-mazurskie | 2006 | 53°39′45.9″N | 20°20′43.0″E | EB61 | 4 |
| 123. | Piława | Szwecja | wielkopolskie | 2003 | 53°21′27.1″N | 16°33′04.1″E | BB96 | 4 |
| 124. | Pisa | Pupki | warmińsko-mazurskie | 2007 | 53°20′52.5″N | 21°47′22.8″E | FB91 | 5 |
| 125. | Pisa | Szast | warmińsko-mazurskie | 2007 | 53°33′01.4″N | 21°50′24.4″E | FB71 | 3 |
| 126. | Pisa | Wincenta | warmińsko-mazurskie | 2007 | 53°27′34.7″N | 21°51′55.0″E | FB82 | 1 |
| 127. | Pissa (Pisia) | Gółkowo | kujawsko-pomorskie | 2005 | 53°12′04.1″N | 19°33′03.1″E | DC16 | 1 |
| 128. | Pliszka | Drzewce | lubuskie | 2004 | 52°13′51.1″N | 15°05′51.1″E | AD16 | 5 |
| 129. | Płoska | Kołodno | podlaskie | 2011 | 53°10′48.3″N | 23°25′08.9″E | GC02 | 5 |
| 130. | Płoska | Przechody | podlaskie | 2004 | 53°08′07.1″N | 23°28′04.8″E | GC12 | 2 |
| 131. | Płośniczanka | Prętki | warmińsko-mazurskie | 2009 | 53°17′17.4″N | 19°55′14.5″E | DC09 | 4 |
| 132. | Płytnica | Ptusza | wielkopolskie | 2011 | 53°20′14.7″N | 16°45′49.3″E | BB98 | 3 |
| 133. | Pokrzywna | Osówka | pomorskie | 2011 | 54°10′18.7″N | 17°01′19.9″E | CB00 | 1 |
| 134. | Pokrzywnica | Końska Wieś | wielkopolskie | 2009 | 51°38′01.5″N | 18°13′03.4″E | CD97 | 4 |
| 135. | Pokrzywnica | Slawoborze | zachodniopomorskie | 2007 | 53°53′40.7″N | 15°42′31.3″E | BB31 | 1 |
| 136. | Postomia | Sulęcin, ul. Chrobrego | lubuskie | 2013 | 52°26′26.0″N | 15°06′38.1″E | AC96 | 5 |
| 137. | Powa | Rumin | wielkopolskie | 2008 | 52°12′38.5″N | 18°12′41.0″E | CD27 | 2 |
| 138. | Prostynia | Prostynia | zachodniopomorskie | 2008 | 53°18′55.5″N | 15°46′28.7″E | BB91 | 1 |
| 139. | Przykopa (Łącza) | Korzonek | opolskie | 2007 | 50°16′59.0″N | 18°17′53.6″E | CF48 | 3 |
| 140. | Pyszna | Staw | wielkopolskie | 2009 | 51°15′10.4″N | 18°36′01.6″E | DE30 | 2 |
| 141. | Raciążnica | Raciąż, ul. 19 stycznia | mazowieckie | 2013 | 52°46′56.6″N | 20°07′21.7″E | EC60 | 3 |
| 142. | Radew | Bardzlino | zachodniopomorskie | 2007 | 54°03′43.3″N | 16°07′02.6″E | BB14 | 1 |
| 143. | Rakówka | Nowy Sumin | kujawsko-pomorskie | 2004 | 53°35′20.7″N | 17°58′20.6″E | CB76 | 6 |
| 144. | Reda | Mrzezino | pomorskie | 2012 | 54°38′13.2″N | 18°26′24.0″E | CA59 | 5 |
| 145. | Rgilewka | Grzegorzew | wielkopolskie | 2004 | 52°11′58.5″N | 18°44′33.7″E | DD21 | 3 |
| 146. | Rospuda | Józefowo | podlaskie | 2003 | 53°56′18.2″N | 22°54′13.3″E | FB28 | 3 |
| 147. | Rospuda | Raczki | podlaskie | 2011 | 53°59′23.9″N | 22°47′13.0″E | FB27 | 2 |
| 148. | Rów Polski | Kłoda Mala | wielkopolskie | 2013 | 51°47′02.1″N | 16°40′31.7″E | BD76 | 4 |
| 149. | Ruda | Rybnik - Wielkopole | śląskie | 2007 | 50°06′50.0″N | 18°33′12.9″E | CF69 | 3 |
| 150. | Rurzyca | Krępsko | wielkopolskie | 2011 | 53°15′49.9″N | 16°46′33.3″E | BC08 | 4 |
| 151. | Sama | Karczemka | wielkopolskie | 2004 | 52°41′55.3″N | 16°32′30.7″E | BC66 | 7 |
| 152. | Samica Stęszewska | Kraplewo | wielkopolskie | 2004 | 52°17′26.2″N | 16°41′07.3″E | BD17 | 8 |
| 153. | Samica Stęszewska | Mirosławki | wielkopolskie | 2005 | 52°18′53.9″N | 16°38′55.0″E | BD16 | 4 |
| 154. | Sanna | Szlachetczyzna | podkarpackie | 2014 | 50°41′04.9″N | 21°49′52.3″E | FF93 | 2 |
| 155. | Sierpienica | Sierpc, ul. 11 listopada | mazowieckie | 2013 | 52°51′23.4″N | 19°40′14.1″E | DC57 | 5 |
| 156. | Skarlanka | Otręba | warmińsko-mazurskie | 2004 | 53°25′23.6″N | 19°24′26.1″E | DB95 | 2 |
| 157. | Skotawa | Dębnica Kaszubska | pomorskie | 2005 | 54°22′17.6″N | 17°09′58.2″E | CA81 | 3 |
| 158. | Skrwa | Gostynin, ul. Parkowa | mazowieckie | 2008 | 52°25′44.7″N | 19°27′31.5″E | DD06 | 1 |
| 159. | Skrwa | Ziejka | mazowieckie | 2008 | 52°27′08.4″N | 19°26′40.1″E | DC96 | 8 |
| 160. | Słopica (Człopica) | Huta Szklana | wielkopolskie | 2004 | 52°55′49.0″N | 16°03′51.5″E | BC43 | 5 |
| 161. | Słupia | Gołębia Góra | pomorskie | 2005 | 54°15′27.8″N | 17°28′51.1″E | CA93 | 4 |
| 162. | Słupia | Włynkowo | pomorskie | 2005 | 54°30′45.2″N | 17°01′14.6″E | CA60 | 5 |
| 163. | Sokołda | Straż | podlaskie | 2003 | 53°20′00.2″N | 23°22′07.3″E | GB92 | 2 |
| 164. | Sopot | Hamernia (rez. Czartowe Pole) | lubelskie | 2009 | 50°26′27.7″N | 23°06′33.4″E | GF12 | 1 |
| 165. | Stążka (Ruda) | Rudzki Młyn | kujawsko-pomorskie | 2004 | 53°33′11.7″N | 17°54′15.7″E | CB75 | 3 |
| 166. | Stołunia (Łobżonka) | Stołuńsko | wielkopolskie | 2007 | 53°25′39.5″N | 17°15′27.0″E | CB81 | 1 |
| 167. | Strug | Biała | podkarpackie | 2014 | 49°59′47.7″N | 22°00′01.8″E | FF64 | 5 |
| 168. | Struga (Bawół) | Katy | wielkopolskie | 2004 | 52°14′25.1″N | 17°49′52.1″E | CD25 | 6 |
| 169. | Struga Goleniowska | Goleniów | zachodniopomorskie | 2013 | 53°33′48.1″N | 14°49′55.5″E | AB65 | 1 |
| 170. | Struga Rynek | Lorki | warmińsko-mazurskie | 2009 | 53°22′20.9″N | 19°46′00.7″E | DB98 | 3 |
| 171. | Supraśl | Zarzeczany | podlaskie | 2004 | 53°06′28.9″N | 23°40′26.9″E | GC14 | 3 |
| 172. | Swędrnia | Dębe | wielkopolskie | 2006 | 51°47′34.9″N | 18°12′15.6″E | CD77 | 4 |
| 173. | Swędrnia | Kalisz-Winiary | wielkopolskie | 2006 | 51°45′09.3″N | 18°07′30.0″E | CD76 | 1 |
| 174. | Szarka | Chojniki | wielkopolskie | 2008 | 52°17′00.4″N | 16°06′08.0″E | BD13 | 5 |
| 175. | Szpatnica | Dębianka | wielkopolskie | 2009 | 51°34′54.0″N | 16°59′31.8″E | BD99 | 4 |
| 176. | Śląska Ochla | Jeleniów | lubuskie | 2009 | 51°51′26.6″N | 15°27′21.3″E | AD58 | 5 |
| 177. | Śląski Rów | Laskowa | dolnośląskie | 2013 | 51°46′12.4″N | 16°31 '41.1 "E | BD75 | 1 |
| 178. | Ślina | Zawady | podlaskie | 2003 | 53°09′12.7″N | 22°40′17.9″E | FC17 | 2 |
| 179. | Średzka Woda | Środa Śląska | dolnośląskie | 2013 | 51°10′21.0″N | 16°35′13.0″E | BE36 | 4 |
| 180. | Toczna | Łosice | mazowieckie | 2005 | 52°12′52.1″N | 22°42′53.6″E | FD18 | 3 |
| 181. | Trojanka | Mściszewo | wielkopolskie | 2008 | 52°34′54.0″N | 16°58′35.3″E | BC89 | 5 |
| 182. | Trzcianka (Niekurska Struga) | Trzcianka, ul. Kościuszki | wielkopolskie | 2012 | 53°02′28.4″N | 16°27′51.2″E | BC36 | 1 |
| 183. | Warkocz | Niestachów | świętokrzyskie | 2007 | 50°50′27.0″N | 20°45′29.1″E | EE75 | 1 |
| 184. | Wda | Loryniec | pomorskie | 2008 | 54°02′58.2″N | 17°53′20.2″E | CB25 | 1 |
| 185. | Wda | Odry | pomorskie | 2008 | 53°54′02.3″N | 18°00′05.3″E | CB36 | 2 |
| 186. | Wda | Schodno | pomorskie | 2008 | 54°03′18.3″N | 17°50′39.4″E | CB25 | 4 |
| 187. | Wel | Lidzbark | warmińsko-mazurskie | 2009 | 53°15′11.1″N | 19°49′37.1″E | DC08 | 6 |
| 188. | Wel | Straszewy - rez. Piekiełko | warmińsko-mazurskie | 2009 | 53°20′00.2″N | 19°46′13.6″E | DC08 | 2 |
| 189. | Wełna | Pruśce | wielkopolskie | 2003 | 52°46′21.8″N | 17°05′23.6″E | CC60 | 2 |
| 190. | Widawa | Kolonia Grędzina | dolnośląskie | 2007 | 51°06′24.3″N | 17°22′44.1″E | CE41 | 2 |
| 191. | Wielki Kanał Brdy | Fojutowo | pomorskie | 2011 | 53°43′16.4″N | 17°54′11.5″E | CB55 | 1 |
| 192. | Wieprza | Kolonia Stary Kraków | zachodniopomorskie | 2011 | 54°26′38.0″N | 16°36′20.0″E | BA77 | 2 |
| 193. | Wieprza | Korzybie | pomorskie | 2005 | 54°18′11.5″N | 16°52′03.7″E | BA99 | 5 |
| 194. | Wieprza | Kwisno | pomorskie | 2006 | 54°05′05.6″N | 17°07′52.5″E | CB10 | 1 |
| 195. | Wiercica | Przyrów | śląskie | 2011 | 50°48′19.3″N | 19°31′21.9″E | DE86 | 1 |
| 196. | Wietcisa | Głodowo | wielkopolskie | 2008 | 52°16′11.2″N | 18°07′45.0″E | CD17 | 7 |
| 197. | Wirenka (Wirynka) | Komorniki, ul. Ogrodowa | wielkopolskie | 2009 | 52°20′07.4″N | 16°48′53.6″E | BD18 | 2 |
| 198. | Wkra | Pomiechówek | mazowieckie | 2005 | 52°28′45.5″N | 20°43′24.9″E | EC94 | 2 |
| 199. | Wołczenica | Świętoszewko | zachodniopomorskie | 2004 | 53°45′35.8″N | 14°54′17.0″E | AB46 | 3 |
| 200. | Wołkuszanka | Wołkusz | podlaskie | 2004 | 53°48′24.1″N | 23°30′47.6″E | GB32 | 7 |
| 201. | Wołkuszek (Perstunka) | Wołkusz | podlaskie | 2004 | 53°48′21.2″N | 23°31′04.4″E | GB32 | 2 |
| 202. | Zadrna | Czadrów | dolnośląskie | 2011 | 50°45′57.2″N | 16°03′19.0″E | BE82 | 4 |
| 203. | Zadrna | Krzeszów | dolnośląskie | 2012 | 50°44′07.0″N | 16°04′19.6″E | BE82 | 1 |
| 204. | Zimna Woda | Drutarnia | śląskie | 2010 | 50°35′00.6″N | 18°52′14.9″E | DF02 | 1 |
| 205. | Zimnica | Lubin | dolnośląskie | 2013 | 51°23′43.0″N | 16°12′38.9″E | BE13 | 3 |
| 206. | Zimny Potok | Krępa Mała | lubuskie | 2004 | 52°01′25.4″N | 15°31′22.8″E | AD49 | 3 |
* nine-scale cover using the macrophyte Method for River Assessment: < 0.1%(1), 0.1-1% (2), 1-2.5% (3), 2.5-5% (4), 5-10% (5), 10-25% (6), 25-50% (7), 50-75% (8) and > 75% (9) (Szoszkiewicz et al. 2010b)