Table 1.
Characteristics of the studied dystrophic lakes in NE Poland.
| Lake no | Lake name | Latitude (n) | Longitude (e) | Area (ha) | Max depth (m) | SDV (m) | pH | EC (μS cm−1) | HDI |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Borkowskie | 53°43′16ʺ | 21°32′57ʺ | 2.9 | 5.0 | 2.0 | 5.7 | 32.4 | 63.8 |
| 2 | Tobolinka | 55°01′36ʺ | 23°24′23ʺ | 2.6 | 7.5 | 3.0 | 6.5 | 74.2 | 55.5 |
| 3 | Rosochaty Róg | 53°45′45ʺ | 21°28′42ʺ | 2.2 | 7.5 | 2.7 | 6.1 | 13.3 | 69.6 |
| 4 | Kruczek Duży | 53°39′41ʺ | 21°24′21ʺ | 4.2 | 8.0 | 2.4 | 5.9 | 47.9 | 58.2 |
| 5 | Suchar Dembowskich | 54°02′18ʺ | 23°03′33ʺ | 3.1 | 5.5 | 1.8 | 6.4 | 11.7 | 69.1 |
| 6 | Ślepe | 53°53′33ʺ | 23°01′46ʺ | 4.8 | 6.5 | 1.0 | 5.3 | 18.1 | 74.3 |
| 7 | Martwe | 53°39′20ʺ | 21°34′07ʺ | 1.4 | 5.0 | 2.2 | 6.4 | 13.5 | 67.4 |
| 8 | Sęczek | 53°43′41ʺ | 21°32′41ʺ | 3.7 | 6.8 | 1.3 | 5.6 | 38.2 | 64.2 |
| 9 | Konopniak | 53°35′07ʺ | 21°33′09ʺ | 1.7 | 5.0 | 1.1 | 5.1 | 45.0 | 60.9 |
| 10 | Suchar Wielki | 54°01′40ʺ | 23°03′20ʺ | 11.0 | 8.0 | 2.1 | 5.7 | 38.6 | 62.7 |
SDV Secchi disk visibility, EC electrical conductivity, HDI Hydrochemical Dystrophy Index4.