Analiza stanu ochrony starorzecza na przykładzie kompleksu starorzeczy "Wiśliska"- obszar Natura 2000 PLH 120084

Tadeusz Zając , Agnieszka Pociecha , Katarzyna Zając , Wojciech Bielański , Dariusz Ciszewski , Jacek Florek , Maria Gołąb , Marek Guzik , Anna Lipińska , Ryszard Myszka , Kamil Najberek , Marta Potoczek , Edward Walusiak , Bronisław Szczęsny , Elżbieta Wilk-Woźniak

Abstract

The habitat “3150 Natural eutrophic lakes with Magnopotamion or Hydrocharition vegetation” is defined on the basis of the water eutrophication level and the type of vegetation that covers the water table. These features are very frequently used as the only features determining the habitat integrity and the favorable conservation status. Based on the extensive studies of the “Wiśliska” complex of old river beds, we are presenting other features of old river beds, which should be analyzed in order to determine the habitat integrity. “Wiśliska” is an old river bed of the Vistula River, which was isolated during the river training works done ca. 100 years ago. Due to the straightened river channel and penetrable sediments in the valley, the Vistula bed was lowered and the old channel dried. The water level in “Wiśliska” was raised again, because of the dam construction in Łączany, which raised the water table over a large part of the valley. Meanwhile, the old river bed was divided into three parts, called Miejsce, Oko and Krajskie. Natural morphology was preserved only within Miejsce. It was separated from Oko by a large alluvial fan created at the mouth of the Łowiczanka stream. Krajskie was separated from Oko by channel levees constructed before WWII, although it still is connected with the main channel of Vistula. This has direct consequences for water quality – water in Miejsce and Oko is supplied by Łowiczanka, which has very good water quality, whereas Krajskie although is also supplied by clear waters of Łowiczanka, which come from Miejsce through Oko, also is supplied by rather polluted waters of the Bachówka stream and water coming directly from the polluted Vistula during high water levels. The biocenosis quality is related to hydrological regime. Although the water quality and related plankton communities are the best in Oko; Miejsce preserves not only the high quality of water and plankton, but also the largest population of protected unionid clams Anodonta cygnea and the related bitterling Rhodeus sericeus population. Also Oko and Miejsce are the place of occurrence of a large number of freshwater sponges Spongilla lacustris and related rare Trichoptera species of the genus Ceraclea. Also some rare species of dragonflies occur here: Sympecma paedisca, Aeshna viridis, Epitheca bimaculata, Leucorrhinia pectoralis. Miejsce is far more rich in vertebrate species than the other waterbodies. There are breeding places of Bombina bombina, Botaurus stellaris and Sterna hirundo. Near the mouth of Łowiczanka, there are two patches of threatened Nymphoides peltata. The only rare species found in Krajskie are Nymphoides peltata covering large areas, a single specimen of Trapa natans and the rare invertebrate Arcteonais lomondi (Naididae). There are also large populations of invasive mollusc species: Sinanodonta woodiana and Physella acuta.
Author Tadeusz Zając
Tadeusz Zając,,
-
, Agnieszka Pociecha
Agnieszka Pociecha,,
-
, Katarzyna Zając
Katarzyna Zając,,
-
, Wojciech Bielański
Wojciech Bielański,,
-
, Dariusz Ciszewski
Dariusz Ciszewski,,
-
, Jacek Florek (FoEEaLS / DoHEaG)
Jacek Florek,,
- Department of Hydraulic Engineering and Geotechnics
, Maria Gołąb
Maria Gołąb,,
-
, Marek Guzik
Marek Guzik,,
-
, Anna Lipińska
Anna Lipińska,,
-
, Ryszard Myszka
Ryszard Myszka,,
-
et al.`
Other language title versionsAnalysis of the conservation status of the "Wisliska" oxbow lakes - Natura 2000 site PLH 120084
Journal seriesChronmy Przyrode Ojczysta, ISSN 0009-6172, (B 8 pkt)
Issue year2013
Vol68
No2
Pages116-133
Publication size in sheets0.85
Keywords in Polish3150 eutroficzne zbiorniki wodne, starorzecze, biocenoza, antropopresja, gatunki obce
Abstract in PolishSiedlisko kodowane w Dyrektywie Siedliskowej jako 3150, obejmujące eutroficzne zbiorniki wodne, w tym starorzecza, jest definiowane na podstawie stopnia eutrofizacji wody i roślinności porastającej zbiornik. Cechy te są często analizowane w waloryzacjach, inwentaryzacjach i decyzjach środowiskowych jako jedyne, które charakteryzują to siedlisko. Na podstawie szeroko zakrojonych badań ekosystemowych kompleksu starorzeczy opisano typowe mechanizmy ekologiczne wpływające na stan ochrony starorzecza.
URL http://www.iop.krakow.pl/pobierz-publikacje,414
Internal identifierWIŚIG/2013/118
Languagepl polski
Score (nominal)8
ScoreMinisterial score = 3.0, 26-07-2017, ArticleFromJournal
Ministerial score (2013-2016) = 8.0, 26-07-2017, ArticleFromJournal
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