TABLE 1. Characteristics of the Polish lakes.
| Lake Name | Latitude | Longitude | WT surf °C | WT Bot °C | O2surf mg/l | O2 bot mg/l | pH | Conduc µS cm | Depth m | May °C | June °C | July °C | August °C | Nitrates ug/l | Phosphorous ug/l |
| M?ciszewickie | 54º15'44.4" | 17º51'03.9" | 20.9 | 7.8 | 11.5 | 0.13 | 10.15 | 116 | 8 | 12.7 | 14 | 17.3 | 16.7 | 13.17 | 0.24 |
| Kamionko | 54º14'48.3" | 18º02'53.7" | 20 | 7.1 | 9.7 | 0.05 | 7.12 | 61 | 12 | 12.9 | 14.2 | 17.5 | 16.9 | 0.71 | 0.04 |
| Rekowo | 54º19'31.8" | 18º07'19.7" | 19.2 | 8.4 | 8.32 | 0.71 | 8.24 | 305 | 10 | 12.8 | 14.3 | 17.5 | 17 | 0.98 | 0.22 |
| Bukowiec | 53º45'05.9" | 15º45'45.3" | 23.2 | 10.2 | 8.2 | 0.15 | 8.26 | 199 | 6 | 13.4 | 15 | 17.7 | 17.1 | 0.37 | 0.03 |
| Suminko | 54º11'12.0'' | 17º48'00.0'' | 19.5 | 4.6 | 9.68 | 0.04 | 8.57 | 228 | 15 | 13.1 | 14.4 | 17.7 | 17.1 | 0.69 | 0.03 |
| Wierzchowo | 53º51'34.7" | 16º40'19.7" | 22 | 8.3 | 9.98 | 0.21 | 9.05 | 254 | 23 | 13.3 | 14.8 | 17.7 | 17 | 1.15 | 0.05 |
| Rzuno | 54º00'46.7" | 17º46'18.2" | 23.1 | 6.3 | 9.52 | 0.1 | 8.88 | 172 | 20 | 13.4 | 14.6 | 17.9 | 17.1 | 0.95 | 0.03 |
| Średnik | 54º03'29.3" | 18º04'58.2" | 18.4 | 7 | 10.93 | 0.04 | 8.74 | 330 | 11 | 13.4 | 14.6 | 17.9 | 17.2 | 1.75 | 0.09 |
| Dubie | 53º30'31.2" | 15º40'38.6" | 25.4 | 4.1 | 9.03 | 0 | 8.72 | 312 | 25 | 14 | 15.4 | 18 | 17.2 | 0.91 | 0.04 |
| Błotno | 53º19'35.8" | 15º29'42.7" | 23 | 7.4 | 9.86 | 0.03 | 8.66 | 848 | 11 | 14.1 | 15.5 | 18.1 | 17.3 | 1.80 | 0.05 |
| Dobińskie | 53º14'02.0" | 16º32'25.1" | 23.9 | 5.8 | 9.47 | 0.02 | 8.71 | 325 | 10 | 14.4 | 15.5 | 18.3 | 17.2 | 3.60 | 0.06 |
| Sumile | 53º15'38.0" | 16º19'30.4" | 24.5 | 9.4 | 14.7 | 0.32 | 9.76 | 272 | 6 | 14.4 | 15.5 | 18.3 | 17.2 | 3.39 | 0.09 |
| Szczycienko | 53º45'43.5" | 17º12'23.3" | 22.7 | 13.8 | 10.9 | 0.9 | 8.94 | 277 | 8 | 14.1 | 15.1 | 18.3 | 17.5 | 1.34 | 0.05 |
| Szerokie | 53º13'22.1" | 15º54'24.6" | 23.6 | 7 | 9.87 | 0 | 8.66 | 212 | 13 | 14.4 | 15.6 | 18.4 | 17.5 | 0.29 | 0.03 |
| Trzebieszki | 53º21'08.9" | 16º37'20.8" | 23.8 | 5.4 | 9.4 | 0 | 8.56 | 278 | 18 | 14.3 | 15.4 | 18.5 | 17.6 | 0.84 | 0.04 |
| Dołgie | 53º00'13.2" | 14º37'39.0" | 25.3 | 17.6 | 8.78 | 0.13 | 8.46 | 539 | 5 | 14.8 | 16 | 18.6 | 18.1 | 0.97 | 0.04 |
| Renickie | 52º54'53.8" | 14º55'43.6" | 24.2 | 15.5 | 15.38 | 0.34 | 8.73 | 635 | 5 | 14.8 | 15.9 | 18.6 | 18.1 | 1.68 | 0.06 |
| Śmiardówka | 53º21'31.1" | 17º07'58.9" | 23 | 12.2 | 11.2 | 0.5 | 9.12 | 338 | 7 | 14.4 | 15.3 | 18.6 | 17.8 | 0.86 | 0.11 |
| Buszewo | 52º55'10.9" | 15º24'34.0" | 24.3 | 8 | 8.94 | 0.7 | 8.42 | 414 | 9 | 14.7 | 15.9 | 18.7 | 17.9 | 0.84 | 0.04 |
| Sarcze | 53º03'36.5" | 16º27'42.2" | 24.1 | 12.1 | 12.2 | 0.09 | 9.14 | 296 | 6 | 14.7 | 15.8 | 18.7 | 17.8 | 1.03 | 0.06 |
| Kościelne | 54º15'06.8" | 22º38'49.9" | 22.4 | 14.9 | 8.65 | 355 | 6 | 13.2 | 14.4 | 18.8 | 16.3 | 0.25 | 0.08 | ||
| Krzywe | 53º22'54.0" | 17º52'34.3" | 18.9 | 4.9 | 9.04 | 0 | 8.43 | 543 | 16 | 14.4 | 15.4 | 18.8 | 18 | 1.31 | 0.06 |
| Czarne | 53º17'06.3" | 19º15'42.7" | 23.5 | 8.5 | 8.57 | 365 | 11 | 13.3 | 14.5 | 18.9 | 16.4 | 2.50 | 0.04 | ||
| Długie | 53º49'10.2" | 20º01'22.3" | 19.9 | 6.3 | 9.8 | 0 | 9.11 | 46 | 15 | 13.6 | 15.1 | 18.9 | 17.6 | 0.62 | 0.30 |
| Gil | 53º49'45.3" | 19º59'12.3" | 19.3 | 7.7 | 9.27 | 0 | 8.54 | 295 | 20 | 13.6 | 15.1 | 18.9 | 17.6 | 1.28 | 0.01 |
| Szurpiły | 54º13'48.9" | 22º53'53.1" | 23.6 | 4.4 | 8.56 | 334 | 41 | 13.3 | 14.5 | 18.9 | 16.4 | 0.53 | 0.06 | ||
| Archidiakonka | 53º11'57.5" | 18º36'32.6" | 20.4 | 12 | 8.78 | 0.15 | 8.71 | 472 | 7 | 14.7 | 15.6 | 19 | 18.3 | 2.28 | 0.10 |
| Giławy | 53º42'44.6" | 20º49'09.7" | 19.7 | 19.5 | 8.1 | 8.45 | 8.14 | 365 | 3 | 13.5 | 15.1 | 19 | 17.3 | 1.15 | 0.03 |
| Plińskie Duże | 53º36'00.9" | 19º01'24.7" | 19.2 | 6.5 | 8.5 | 0 | 8.43 | 388 | 16 | 14.2 | 15.5 | 19 | 18.1 | 1.59 | 0.04 |
| Salno | 53º29'17.3" | 18º57'28.8" | 19.1 | 5.9 | 7.78 | 2.71 | 8.41 | 417 | 16 | 14.3 | 15.5 | 19 | 18.1 | 1.70 | 0.06 |
| Borówko | 53º45'58.4" | 21º11'25.2" | 19.8 | 5.9 | 10.09 | 0.07 | 8.96 | 274 | 8 | 13.6 | 15.3 | 19.2 | 17.4 | 2.45 | 0.03 |
| Dobrzyń | 53º62'41.9" | 22º08'02.9" | 19.8 | 6.1 | 8.45 | 0 | 8.59 | 319 | 20 | 13.6 | 15 | 19.2 | 16.9 | 0.09 | 0.07 |
| Gorzyńskie | 52º34'05.9" | 15º53'08.5" | 24.8 | 4.3 | 8.78 | 0.4 | 8.47 | 435 | 31 | 15 | 16.3 | 19.2 | 18.8 | 0.77 | 0.03 |
| Priamy | 53º32'10.7" | 20º36'55.4" | 19 | 4.6 | 11.7 | 0 | 9.38 | 220 | 20 | 14.1 | 15.4 | 19.2 | 17.8 | 0.58 | 0.37 |
| Trąbińskie | 53º05'05.1" | 19º17'27.6" | 19.8 | 7.5 | 8.4 | 0.03 | 8.54 | 478 | 12 | 14.5 | 15.5 | 19.2 | 18.2 | 1.00 | 0.18 |
| Wąsoskie | 52º56'47.6" | 17º44'23.2" | 23.6 | 6.1 | 9 | 0 | 8.59 | 645 | 26 | 15 | 15.9 | 19.2 | 18.4 | 0.79 | 0.03 |
| Brożówka | 54º05'34.7" | 21º57'00.4" | 19.8 | 9.7 | 8.8 | 0.13 | 8.71 | 313 | 7 | 13.8 | 15.1 | 19.3 | 17.1 | 4.13 | 0.08 |
| Czarne | 54º06'56.6" | 22º28'13.5" | 20.2 | 8 | 9.5 | 0.5 | 8.55 | 520 | 12 | 14.6 | 15.6 | 19.3 | 18.3 | 1.16 | 0.05 |
| Jędzelewo | 53º56'10.3" | 22º08'27.8" | 19.2 | 8.7 | 7.8 | 0 | 8.25 | 427 | 12 | 13.7 | 15.1 | 19.3 | 17 | 1.09 | 0.10 |
| Kiernoz W | 53º31'49.4" | 20º28'26.1" | 19.3 | 6.7 | 9.8 | 0 | 8.56 | 333 | 15 | 14.1 | 15.4 | 19.3 | 17.8 | <0,20 | 0.07 |
| Łazduny | 53º51'24.0'' | 21º57'30.0'' | 20.4 | 4.4 | 9.3 | 0.12 | 8.51 | 342 | 18 | 13.7 | 15.1 | 19.3 | 17 | 1.29 | 0.03 |
| Łękuk Wielki | 54º07'32.5" | 22º01'41.6" | 19.5 | 5 | 7.4 | 0 | 8.53 | 310 | 12 | 13.8 | 15.1 | 19.3 | 17.1 | 1.24 | 0.06 |
| Stępuchowskie | 52º48'54.5" | 17º24'23.9" | 24.8 | 13.8 | 11.46 | 0.11 | 8.82 | 742 | 7 | 15.1 | 16.1 | 19.3 | 18.6 | 2.69 | 0.06 |
| Stęszewskie | 52º31'02.8" | 17º10'26.5" | 24.2 | 6 | 10.1 | 0 | 8.45 | 492 | 12 | 15.1 | 16 | 19.3 | 18.5 | 0.95 | 0.02 |
| Szóstak | 53º58'34.2" | 22º09'09.5" | 20.1 | 7.4 | 9.66 | 0.19 | 8.8 | 327 | 22 | 13.7 | 15.1 | 19.3 | 17 | 1.34 | 0.06 |
| Kępno | 53º46'12.0'' | 22º06'36.0'' | 20.3 | 6.2 | 9.2 | 0.02 | 8.56 | 299 | 17 | 13.8 | 15.3 | 19.4 | 17.1 | <0,20 | 0.02 |
| Kuchenne | 52º37'19.1" | 16º15'22.0" | 26.2 | 8.2 | 8.6 | 0.1 | 8.87 | 472 | 16 | 15.4 | 16.4 | 19.4 | 18.7 | 1.12 | 0.04 |
| Żabińskie | 54º07'54.0" | 21º58'59.1" | 19.7 | 3.7 | 9.77 | 0 | 8.59 | 348 | 41 | 13.8 | 15.1 | 19.4 | 17.2 | 2.02 | 0.05 |
| Zyzdrój Mały | 53º37'17.8" | 21º18'36.4" | 19.1 | 6.7 | 9.6 | 0 | 8.63 | 320 | 12 | 13.8 | 15.5 | 19.4 | 17.3 | 1.09 | 0.03 |
| Maciejak | 52º39'07.2" | 17º08'40.8" | 26.3 | 13.7 | 22.3 | 0 | 9.16 | 538 | 6 | 15.3 | 16.2 | 19.5 | 18.7 | 1.82 | 0.20 |
| MAX | 26.3 | 19.5 | 22.3 | 8.45 | 10.15 | 848 | 41 | 15.4 | 16.4 | 19.5 | 18.8 | 13.17 | 0.372 | ||
| MIN | 7.4 | 0 | 7.12 | 46 | 3 | 12.7 | 14 | 17.3 | 16.3 | 0.09 | 0.006 | 0 | 0 | ||
| Gradient | 18.9 | 19.5 | 15.18 | -37.55 | 7.15 | 835.3 | 27 | -1.9 | 0.1 | 19.41 | 18.794 | 13.17 | 0.372 |
