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Jamno Lake

jamno lakeA lake also known as Gamel or Gemel (30,84ha, 9,2m deep), located in the eastern part of the Drawa National Park, in a land gully parallel to the Płociczna valley. Waters from Lake Drogie flow into it through a stream, and flow out Jamno to Lake Płociczno. Jamno is a eutrophic lake. Its fertile waters are devoid of oxygen from 4m down in the summer, even though the relatively shallow lake is prone to being stirred by the winds. Average water translucency doesn’t even reach 2m. The abundant underwater vegetation is dominated by pond-weed, hornwart, and water nimfoil. The fish fauna is dominated by a very numerous here population of roach. There is also lots of bleak and perch. They are accompanied by bream, tench, pike bitterling, eel, and rudd.

The rushes by Lake Jamno are relatively poorly developed, only the southwestern edge has a larger patch of the manna rush. In the north, pretty alder-lined meadows and swamps stretch along the coastline, with some mixed-in well-head vegetation. There is one of the very few in this region basin-type brooks hidden in these alder woods. As mentioned in a historical document dating back to the 16th century, the lake was a property of Maciej Czarnkowski of Czarnkowo, the castellan of Bydgoszcz. Since then the lake was being used for fishing. A red tourist trail Pustelnia-Tuczno runs through the tops of the hills called Śmiałkowe Wzgórza parallel to the western bank of Jamno. The trail provides beautiful lake sightseeing.