Heinz von Löffler

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The northwestern area of the Pannonian Lowland extends into Austria. The climatic and hydrologic attributes of this biographic region promote the existence of extremely astatic bodies water lacking any fish and hence the occurrence of Anostraca, Notostraca, Laevicaudata and Spinicaudata. Zoogeographical and ecological features as well as the extinction of(More)
The most interesting (Hutchinson, 1957), and at the same time oldest graben lakes of Europe, are Lakes Ohrid and Prespa. According to geologists and geographers, both originated during the Pliocene. They show karstic features and differ by volume, much less by area. At the occasion of an excursion to Lake Prespa in September 1994, an absence of oxygen in(More)
Neusiedlersee is a shallow, alkaline lake (Table 1), which came into existance by tectonic subsidence about 12000–14000 yr ago. At present, half of it is covered by Phragmites australis which developed after the lake fell dry for the last time in 1868. Due to its astatic character, with about 100–200 dry periods since the lake came into existence, most of(More)
Multidisciplinary palaeolimnological approaches were applied to long sediment cores from Längsee, Carinthia. Climate amelioration after deglaciation allowed the expansion of shrubs and timber-line trees and the onset of plankton and probably lake summer stratification. This phase called Pre-Bölling has an upper boundary of approx. 16 kyrs BP. The change(More)
The aim of the present study was to analyse the data structure of a large data set from rainwater samples collected during a long-term interval (1990-1997) by the Austrian Precipitation Monitoring Network. Eleven sampling sites from the network were chosen as data sources (chemical concentrations of major ions only) covering various location characteristics(More)
Traunsee is the deepest (189 m) lake in Austria and has been holomictic until the beginning of industrial discharges from the alkali works in Ebensee. The input of soluble compounds such as CaCl2 and NaCl have produced meromictic conditions. The relatively high oxygen content of the monimolimnion is due to water movements promoted by the large inflow and(More)
Lobsigensee is a small kettle on the western Swiss Plateau in a tectonic depression of the tertiary Molasse. At present its maximum depth is 2.7 m. Analysis of ostracods and other organisms (Chaoborus) from a 13 m core indicates that the lake became meromictic during the Bølling and returned again to a holomictic stage during the Boreal when the lake was(More)
The aim of the present study was to determine the long-time trends in concentrations and depositions of major ions in wet precipitation samples collected at 11 sampling sites from the Austrian precipitation chemistry network in the period 1984-1999. The analytical results were treated by the use of least square linear regression method. It is shown that a(More)
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