Table 1
Morphometric and trophic characteristics of the studied lakes in NE Poland. TSI − Carlson trophic state index (Carlson, 1977); HDI − hydrochemistry dystrophy index (Górniak, 2017); SDV − Secchi disk visibility.
| No. | Lake name | Trophic | TSI | HDI | SDV (m) | Longitude | Latitude | Max depth (m) | Area (ha) |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Jegocin | Meso | 39.6 | 37.7 | 7.0 | 53°39’52 | 21°41’54 | 36.1 | 123.3 |
| 2 | Hańcza | Meso | 40.8 | 25.4 | 4.2 | 54°15’90 | 22°51’10 | 108.5 | 311.4 |
| 3 | Buwełno | Meso | 42.4 | 30.7 | 2.4 | 53°52’48 | 21°51’37 | 49.1 | 360.3 |
| 4 | Białe Wigierskie | Meso | 44.2 | 38.2 | 5.7 | 54°01’57 | 23°05’41 | 34.0 | 102.0 |
| 5 | Busznica | Meso | 44.3 | 37.3 | 6.6 | 53°56’38 | 23°05’00 | 48.0 | 49.4 |
| 6 | Szurpiły | Meso | 45.8 | 27.1 | 2.9 | 54°14’30 | 22°53’50 | 38.7 | 183.1 |
| 7a | Wigry − North Basin | Meso | 46.9 | 26.2 | 3.5 | 54°03’34 | 23°04’44 | 56.0 | |
| 7b | Wigry − Central Basin | Meso | 45.9 | 27.6 | 3.2 | 54°02’37 | 23°07’14 | 74.0 | |
| 7c | Wigry − Zadworze Bay | Meso | 44.8 | 29.9 | 4.9 | 54°04’42 | 23°05’19 | 20.0 | |
| 8 | Jaczno | Meso | 41.5 | 27.7 | 2.9 | 54°17’01 | 22°52’30 | 11.7 | 163.8 |
| 9 | Okrągłe | Eut | 50.0 | 30.5 | 3.1 | 54°01’14 | 23°01’22 | 10.0 | 13.5 |
| 10 | Kierzlińskie | Eut | 53.1 | 31.7 | 1.5 | 53°48’03 | 20°44’32 | 44.5 | 92.8 |
| 11 | Długie Wigierskie | Eut | 53.5 | 28.6 | 1.6 | 54°01’17 | 23°02’03 | 14.8 | 80.0 |
| 12 | Leszczewek | Eut | 54.4 | 29.7 | 2.3 | 54°04’18 | 23°03’50 | 6.4 | 21 |
| 13 | Nidzkie | Eut | 55.4 | 34.5 | 0.9 | 53°37’46 | 21°32’38 | 23.7 | 1831 |
| 14 | Miłkowskie | Eut | 59.4 | 26.4 | 0.5 | 53°56’31 | 21°52’14 | 15.0 | 23.7 |
| 15 | Suchar I | Dys | 62.0 | 71.5 | 1.1 | 54°05’07 | 23°00’54 | 4.0 | 1.0 |
| 16 | Suchar II | Dys | 53.7 | 76.8 | 1.9 | 54°05’15 | 23°01’04 | 10.0 | 2.6 |
| 17 | Suchar Wielki | Dys | 56.7 | 77.7 | 2.2 | 54°01’40 | 23°03’22 | 9.6 | 8.9 |
| 18 | Gryżlewskie | Dys | 50.6 | 79.8 | 1.8 | 53°43’26 | 21°33’03 | 5.0 | 4.3 |
| 19 | Sęczek | Dys | 56.0 | 80.5 | 0.9 | 53°43’41 | 21°32’47 | 3.5 | 3.8 |
| 20 | Borkowskie | Dys | 53.7 | 83.2 | 1.2 | 53°43’16 | 21°32’57 | 5.0 | 2.9 |
| 21 | Kurczy Staw | Dys | 47.7 | 82.4 | 2.0 | 53°39’41 | 21°24’21 | 8.0 | 2.1 |
| 22 | Kruczek Mały | Dys | 46.7 | 84.5 | 1.7 | 53°39’28 | 21°25’01 | 9.0 | 2.6 |
| 23 | Kruczek Duży | Dys | 51.3 | 84.9 | 1.5 | 53°39’36 | 21°24’08 | 4.0 | 4.2 |
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