The Macrophyte Flora and Vegetation of the Paučko Lake (Mt. Konjuh)

Abstract

UDK: 581.9:574.5 (497.6) (285)
 The study presents the first data on biodiversity of macrophyte flora and vegetation of Paučko Lake, which is recognized as an area of great natural, landscape and hydrological value in the Protected Landscape “Konjuh”. Paučko Lake has a small surface and it’s located at 711 m a.s.l. in the catchment area of the Drinjača River. The aquatic and marsh vegetation were studied during spring and summer in 2018 using the traditional Zürich-Montpellier approach. The vegetation of Paučko Lake is comprised of aquatic and marsh associations of the classes Potamogetonetea Klika in Klika et Novák 1941 and Phragmito-Magnocaricetea Klika in Klika et Novák 1941. The following aquatic and marsh plant associations were identified: Myriophyllo-Potametum Soó 1934, Scirpo-Phragmitetum australis W. Koch 1926, Thelypterido palustris-Phragmitetum australis Kuiperex van Donselaar et al. 1961, Schoenoplectetum lacustris Chouard 1924, Typhetum latipholiae Lang. 1973 and Scirpetum silvatici Ht et H-ić prov. (in Ht et al.1974). Rare vulnerable taxa Thelypteris palustris Schott and Menyanthes trifoliata L. were recorded in emerged littoral communities, whose habitats are under successional changes caused by excessive macrophyte overgrowth by competitor species. Restoration measures are necessary to be taken to preserve the habitats of endangered species of the Paučko Lake.

Diversity of Cyanobacteria and Microalgae in the Shallow Mountain Lake Paučko, Konjuh Mountain

“…macrophytedominated versus turbid state. The Paučko lake is macrophyte dominated type, inhabited with aquatic submerged competitive macrophyte species Myriophyllum spicatum, that covers almost the entire bottom of the lake in the summer aspect [8]. Macrophytes can maintain clear water and nutrient retention in shallow lakes [44], and reduce the growth of the plankton communities.…”

“…The Paučko lake is a small mountain water body, located in Protected Landscape Konjuh and recognized as an area of natural, landscape and hydrological value in northeastern Bosnia and Herzegovina. The lake is not on the list of monitoring stations due to its small size, and recent studies of macrophytes point to the problem of accelerated overgrowth of the lake with aquatic vegetation of weed taxa Myriophyllum spicatum which threatens the disappearance of endangered species in lake [8]. On the other hand, there is a lack of published data on algal research of the lake Paučko on the Konjuh Mt.…”

Balkan endemic vascular flora of the Konjuh Mountain

“…The diversity of algae and aquatic plants in crenic communities of the Konjuh Mountain was described by Kamberović (2015;2020) and Kamberović et al (2019). Several endangered and endemic taxa were listed in the paper on the diversity of Paučko Lake (Kamberović et al, 2020). Recent publications include remarks on the distribution of endemic plants Polygonum albanicum (Maslo and Šarić, 2021) and Euphorbia serpentini (Maslo et al, 2022), as well as data on the distribution of the threatened species Adenophora liliifolia (Ballian and Šarić, 2015).…”