Drużno Lake nature reserve - fauna nature reserve in Poland, in Warmian-Masurian Voivodeship, in Elbląg district, established in the municipalities of: Elblag and Markusyon Żuławy Elbląskie.
Even though the reserve was named after the lake Druzno, in its name there is an incorrect version of the name of the lake - Team.
Geographical coordinates of the beginning of the nature trail in the reserve: 54 ° 03′54 ″ N, 19 ° 27′05 ″ E
The lake is located in the south-eastern part of Żuławy Elbląskie, in the Elbląg Upland Landscape Park. A large reservoir constituting a sightseeing attraction for both tourists and naturalists and, recently, anglers. Area: from 1109.42 ha to 1790.1 ha. The water surface fluctuates significantly depending on the wind direction. Maximum depth of Lake Druzno - 2.5 m to 3 m; average 1 to 2.25 m. The depth, like the surface of the reservoir, is variable and depends on weather conditions (winds!) and water levels of the Vistula Lagoon.
Cleanliness class: Strongly eutrophicated reservoir. One of the sources of pollution is the Elbląg Canal, which is used to deliver all kinds of "rubbish". On the basis of the lake water purity tests carried out in 2003, it was classified as out of class waters.
The bottom is overgrown with underwater and floating vegetation - only the track of the Elbląg Canal has been redeveloped, which still needs to be cleaned again. Muddy bottom. Several small rivers flow into the reservoir, including: Brzeźnica, Burzanka, Dzierzgoń, Elszka, Kowalewka, Marwicka Młynówka, Tina (one branch in the lower course), and Wąska. The Elbląg River flows out of the lake.
The lake is very difficult to access - there is practically no access to the open water. The shores are surrounded by flood embankments, heavily overgrown, with a predominance of rushes, alder forests and meadows. Rush vegetation is abundantly developed around the lake and drainage ditches. The water surface is heavily overgrown with floating vegetation. The system of embankments and watercourses around the lake is under the care of the Board of Melioration and Water Facilities of the Warmińsko-Mazurskie Voivodeship, Regional Branch in Elbląg.
A shipping route from Elbląg to Ostróda runs through the lake. The Elbląg Canal begins in the southern part of this lake.
The area of the reserve: 3,021.6 ha. It was established in 1966.
The reserve covers the reservoir of Lake Druzno with the surrounding areas of rush vegetation, willow thickets and alder forest.
The reserve was established for scientific and didactic reasons. There are almost 700 species of vascular plants and a large number of diverse fauna, including birds. The main goal of protection is to preserve the breeding sites of waterfowl and marsh birds. There are many species of water birds, both during the breeding season and during migrations. The most famous breeding species are: white tern, white-tailed eagle, temple, forage, spotted hat, crane, marsh harrier and - perhaps the most important and rarest - feverishness - a duck, the number of which decreased by over 90% in the 1980s! Only 3 pairs of these ducks have been breeding in the reserve in recent years (for the sake of their safety, you should not reveal where, or look for them). Of course, the list of breeding species is much larger.
Additionally, the area of the reserve coincides with Natura 2000 areasDruzno (PLH280028) (Special Area of Conservation of Habitats) and a larger area of Drużno (PLB280013) (Area of Special Protection of Birds).
In 2002, due to the richness of plants and biodiversity, it was included in the international form of protection and entered into the Ramsar list.
It is a unique place in the scale of the country, and perhaps the whole of Europe (sometimes referred to as the "Polish Amazon").
Lake Druzno does not resemble most of the lakes in Poland. The vast majority of the lake's surface is covered nymfeids, i.e. plants with floating leaves: water lilies, water lily and also very rare mushroom (it is the northernmost position of this plant in Europe, a plant under strict species protection in Poland). The beauty of the mushroom is best admired from afar. During flowering, it turns the lake from green to yellow.
The reserve is practically closed to tourists. However, there are two ways to admire this phenomenal place.
1. A cruise along the Elbląg Canal, which runs through the middle of the lake. At this point, it should be emphasized that you can only move on the canal, outside it the presence of tourists is illegal, which for unwise tourists - due to frequent river police patrols - may end with a ticket.
2. Educational trail and observation tower in the southern part of the reserve. This is by far the best place for bird watching on the lake. There is a view of the colony from the tower black-headed gulls (about 2000-4000 pairs), around which the life of the rest of the lake Druzno wetland avifauna is practically concentrated. I suggest taking a good quality spotting scope on a tripod to the tower - it will be very helpful in observing long distances.
Admittedly, the educational trail is incomplete, there are no information boards, and the path itself is riddled with Beavers, grubs and minkso be careful not to twist your ankle. We start our walk in a real and wild alder forest, then we come to the Dzierzgoń River, the same river where St. Adalbert to convert pagan Prussians. Walking along the river, we will reach the lookout tower - it is impossible to go any further, because there is only water left.
Fishing is managed in the reserve, but it is subject to strict restrictions. Fishing from the shore is usually prohibited. Only in the autumn period, i.e. from September to December, you can rent a boat and fish at the local fishing harbor for a fee (only artificial lures are allowed, it is forbidden to silver crucian as a livestock. There are significant limits and protective exchanges, e.g. you can take a maximum of 2 pikes not smaller than 50 cm and not larger than 80 cm). Pike, pike perch and eel have a total daily limit - 2 pcs. The perch is protected up to 20 cm. You can take 20 perch with you. In winter, you can fish from ice on the entire surface of the lake, but without baiting.
http://ptasieogrody.pl/wiki/Rezerwat_Jezioro_Drużno
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