Table 1
Basic limnological characteristics of the studied lakes.
| Skomielno | Czarne Sosn. | Tomaszne | Krzczeń | |
|---|---|---|---|---|
| Area (ha) | 75 | 38 | 95 | 174 |
| Max. depth (m) | 3.5 | 15.6 | 3.1 | 5.2 |
| SWAm. (cm)a | 5–8 | n.d. | 12–32 | 4–28 |
| Frequency of WLFsa | 0–1 | n.d. | 1–2 | 0–1 |
| TSI SD + P tot. + Chl-a | 51 | 65 | 67 | 80 |
| Trophic status | Meso-eutrophic | Eutrophic | Eutrophic | Hypertrophic |
| Submerged macrophyte cover (% of lake area) | 33b | 9c | 39d | 28d |
| Emergent macrophyte cover (% of lake area) | 49b | 19c | 13e | 20e |
| Use of the lake | Private user special angling site | No manager | Private fish farm special angling site | Polish Angling Association |
| Fishery management | Fish stocking, used by anglers | No fish stocking, used by anglers | Fish stocking, used by anglers | Fish stockingf, used by anglers |
SWAm − Seasonal water amplitude and WLF − the frequency of water level fluctuations per season according to: aSuchora (2012), Pawlik-Skowrońska and Toporowska (2016), n.d. − no data. Macrophyte cover according to: bSender (2012), cSender (2016), dMieczan et al. (2016), eapproximate data obtained from the calculations based on satellite images, fhttp://www.pzw.org.pl/naszewody/cms/6702/zarybienie.
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