The distribution of Salvinia natans (L.) All. in the Odra and the Oława River valleys in Wrocław area (Poland)

Abstract

The data presented in this paper concern the occurrence of Salvinia natans (L.) All. in Wrocław area. Field research was conducted in the vegetation season (June-September) between 2013 and 2017 in water bodies (natural and artificial), in the main river beds of the Oława and the Odra Rivers and in the Odra canals in Wrocław. The study provided 32 S. natans locations in the city area. The studied species occurred in various plant communities accompanied by numerous species which were also under protection, increasing the ecological value of the habitats. Additionally, a stable S. natans site was confirmed by the study in a location where aquatic fern had previously been recorded in Wrocław. The research indicates numerous populations of the species along the Odra and the Oława and in many old river beds and artificial water bodies in Wrocław and the results confirm the visible trend of a growing number of S. natans sites in all of Poland.

Removal of mercury from water by phytoremediation process with Salvinia natans(L.) All.

“…It occurs mainly in Lower Silesia in Poland, and its growing season is April-October (Zajac and Zajac , 2001 ; Gałka and Szmeja , 2013 ; Pietryka et al. , 2018 ).…”

“…In Poland, we have only S. natans , but in many African and American countries, adding several varieties are found (Gałka and Szmeja , 2013 ; Pietryka et al. , 2018 ).…”

New floristic records from Central Europe 7 (reports 99-108)

“…It was introduced to North and Central America (Plants of the World online 2021). It is usually found in eutrophic waters, in shallow lakes, oxbow lakes, rivers, and ponds (Krechowski et al 2010;Pietryka et al 2018). In Europe, it has been listed as a strictly protected species in Annex I of the Bern Convention on the conservation of European wildlife and natural habitats (European Environment Agency 2019).…”

Моніторинг поширення Salvinia natans (l.) all в річці Tурія в межах міста Kовель

“…книги України із природоохоронним статусомнеоцінений в межах держави [4]. Вид занесений до Червоної книги Республіки Білорусь (статус охорони ІV) [5], охороняється в Польщі [6,7]. В Росії на північній межі свого ареалу вид включений до регіональних червоних книг: Республік Башкортостан та Татарстан, Ульяновської та Самарської областей, Алтайського та Забайкальського краю тощо [8].…”