Author/Editor | Brancelj, Anton; Šiško, Miljan; Rejec-Brancelj, Irena; Jeran, Zvonka; Jaćimović, Radojko | |
Title | Effects of land use and fish stocking on a mountain lake - evidence from the sediment | |
Type | članek | |
Source | Period Biol | |
Vol. and No. | Letnik 102, št. 3 | |
Publication year | 2000 | |
Volume | str. 259-68 | |
Language | eng | |
Abstract | Background and purpose; Mountain and high mountain lakes all over the Alps were originally without fish, In medieval times; a lot of lakes were stocked with fish, but not in Slovenia, Lake Jezero Na Palanini Pri Jezeru (1430 m a.s.l.; NW Slovenia) was stocked in 1851, Other human activities, particularly forges and alpine dary farming; were known there since the 14th century. From 1950 onward tourism has became an important human activity around the lake too.: Today the lake is highly eutrophic, To reveal the main milestones during eutrophication process of the lake analyses of the sediment were done. Material and Methods: A sediment corer vas employed to get a 40 cm long sediment core from the deepest point of the lake. The core was immedately sliced into 0.5-1 cm thin slices for further analyses. Dating (210Pb method) and analyses of physical properties of the sediment (dry weight, loss-on-ignition) as well as analyses of diatom and Cladocera remains were performed to reconstruct events in the lake's catchment and lake itself, Historical data were used to cornment results obtained from the sediment analyses. (Abstract truncated at 2000 characters) | |
Descriptors | FRESH WATER FISHES EUTROPHICATION GEOLOGIC SEDIMENTS DIATOMS ZOOPLANKTON WATER POLLUTANTS |