Late and post-glacial history of meromictic Längsee (Austria), in respect to climate change and anthropogenic impact

Schmidt, Roland; Wunsam, Sybille; Brosch, Ursula; Fott, Jan; Lami, Andrea; Löffler, Heinz; Marchetto, Aldo; Müller, Harald W.; Praǽáková, Miroslava; Schwaighofer, B.

doi:10.1007/s000270050026

Cited by 14 publications

(28 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Chydorid species inhabiting the lake soon after its origin are the same as those which have been reported to inhabit other European lakes in the Late-Glacial period (Hofmann, 1987(Hofmann, , 2000Flössner, 1990;Schmidt et al, 1998). They are mostly eurythermic but cold-tolerant, with rather wide substrate preferences.…”

Section: Discussionsupporting

confidence: 68%

“…We use the tentative designation D. cf. pulicaria, as we did in the lake Längsee, Austria (Schmidt et al, 1998). In the High Tatra Mountains (Slovakia) D. cf.…”

Section: Pelagic Cladocera -Bosmina and Daphniasupporting

confidence: 70%

“…However, this species was abundant in another Bohemian Forest lake (Černé Lake) until the end of the 19 th century AD. Its remains also occur in the upper sediment layers of the nearby lakes -Čertovo Lake (Frič & Vávra, 1897), Grosser Arbersee and Prášilské Lake (Schmidt et al, 1998). In addition, Pražáková (unpublished data) found remains of B. longispina in the lacustrine sediment of Stará Jímka -a small glacial lake close to Prášilské Lake, currently infilled.…”

Section: Pelagic Cladocera -Bosmina and Daphniamentioning

confidence: 99%

See 2 more Smart Citations

The long-term succession of cladoceran fauna and palaeoclimate forcing: A 14,600-year record from Plešné Lake, the Bohemian Forest

et al. 2006

Self Cite

View full text Add to dashboard Cite

A sediment record of cladoceran remains was analysed in a 543 cm long core from Plešné jezero (Plešné Lake), the Bohemian Forest, Czech Republic. The core covered the time period from the Oldest Dryas to the present. Littoral and benthic Cladocera included 11 species of the family Chydoridae while three species (Bosmina longispina, Daphnia cf. pulicaria and D. cf. longispina) lived in the open water. Remains of Alona quadrangularis and Chydorus sphaericus occurred in the oldest sediment layers from the beginning of the Bølling chronozone. Bosmina longispina and Daphnia cf. pulicaria appeared about 400 years later. Inorganic sediment accumulated at a relatively high rate of ∼90 mg cm −2 yr −1 at that time, diluting cladoceran remains and organic matter. Remains of Cladocera accumulated at 0.1 to 0.01 of the Holocene rate, making it difficult to observe effects of climate variation on the species structure of Cladocera in the Late-Glacial. Production of remains increased after warming during the Younger Dryas-Preboreal transition at ∼11.6 kyr BP, and the proportion of littoral species increased. The most important change in cladoceran fauna occurred at ∼10.5 kyr BP and culminated with afforestation of the catchment around 10.3 kyr BP. The domination of Bosmina longispina lasted for ∼250 years. The afforestation occurred concurrently with a decrease in lake water pH. Bosmina longispina and Daphnia cf. pulicaria disappeared, production of cladoceran remains decreased, but biodiversity increased. Planktonic Cladocera were represented by Daphnia cf. longispina during most of the rest of the Holocene. The production of Cladocera never reached the Preboreal level. Since ∼5 cal. kyr BP, the inferred pH continuously decreased. The final decline was likely caused by cooling during the Little Ice Age and by sulphur emissions from ore smelting. The recent acidification of lake water and impoverishment of aquatic fauna was brought about by emissions of sulphur and nitrogen compounds in the 20 th century.

show abstract

Section: Discussionsupporting

confidence: 68%

“…We use the tentative designation D. cf. pulicaria, as we did in the lake Längsee, Austria (Schmidt et al, 1998). In the High Tatra Mountains (Slovakia) D. cf.…”

Section: Pelagic Cladocera -Bosmina and Daphniasupporting

confidence: 70%

Section: Pelagic Cladocera -Bosmina and Daphniamentioning

confidence: 99%

See 1 more Smart Citation

The long-term succession of cladoceran fauna and palaeoclimate forcing: A 14,600-year record from Plešné Lake, the Bohemian Forest

et al. 2006

Self Cite

View full text Add to dashboard Cite

show abstract

“…The onset of afforestation directly after the Late Glacial/Holocene transition is in many pollen diagrams characterised by a maximum of Juniperus followed by expansion of Betula and Pinus trees. Pinus S376 V. Jankovská cembra and Larix play the same role in the Alps (e.g., Welten, 1982), in the Carpathians (e.g., Jankovská, 1984Jankovská, , 1995Jankovská et al, 2002) and some other regions in Europa (see e.g., Schmidt et al, 1998). In Plešné Lake, however, the final phase of Juniperus expansion coincides with the first substantial expansion of Betula and Pinus.…”

Section: S373mentioning

confidence: 96%

Late Glacial and Holocene history of Plešné Lake and its surrounding landscape based on pollen and palaeoalgological analyses

Jankovská

2006

Biologia

View full text Add to dashboard Cite

Pollen analysis has been carried out on a 549 cm thick sediment profile from lake Plešné jezero (Plešné Lake) in the Bohemian Forest (Šumava, Czech Republic; 1090 m a.s.l.; 48• 47 N; 13• 52 E). Analyses of 67 samples characterise the development of the lake biotope and the surrounding landscape during the last ca. 14,000 years. The pollen diagram shows a very distinct transition between the Late Glacial and the Holocene biostratigraphic units at a depth of ca. 312 cm. In the surroundings of Plešné Lake the vegetation was treeless during the entire Late Glacial. The alpine tree limit, formed by Betula and Pinus with undergrowth of shrubs, might have been at ca. 500 m a.s.l. Pollen transported from long distances was significant due to the openness of the landscape, coming from southern Europe and even Africa, and including high numbers of Artemisia, Poaceae, Chenopodiaceae, and some other herbs and shrubs from steppe and forest-steppe areas in southern Europe or Africa (likely Ephedra, certainly Lygeum spartum). The expansion of shrubs, particularly Juniperus, preceded the expansion of trees near the end of the Late Glacial. Afforestation of the region by thin stands of Betula and Pinus occurred during the Preboreal. Significant warming in the Boreal resulted in the expansion of Corylus, Quercetum mixtum (QM) trees, and probably also Picea and Alnus. Picea as well as QM trees were further expanding during the Early Atlantic. Picea was the dominant tree during the Late Atlantic and Fagus started to spread towards its end. Abrupt expansion of Abies marks the Subboreal. A high degree of afforestation (Abies, Fagus, Picea) was characteristic for the Early Subatlantic. During Late Subatlantic, pollen of synanthropic plants appears. Phases of the lake biotope development were defined on the basis of coccal green algae and Isoëtes.

show abstract

“…In particular, large lakes register major events averaging long-term environmental changes. Their sediment infills, therefore, record regional cli-The sedimentary infill of numerous perialpine lakes has been studied during the last several years in Switzerland (Gaillard & Moulin 1989, Lister 1988, Lotter 1999, Niessen & Kelts 1989, Schwalb 1992, Sturm & Matter 1978, Wohlfarth & Schneider 1991, France (Chapron 1999, Magny 1992, Van Rensbergen et al 1998 and Austria (Schmidt et al 1998, Wessels 1998. However, the use of both high resolution seismic and sedimentary studies is still scarce.…”

Section: -Introductionmentioning

confidence: 99%

Bottom-current and wind-pattern changes as indicated by Late Glacial and Holocene sediments from western Lake Geneva (Switzerland)

Girardclos

Baster

Wildi

et al. 2003

Lake Systems From the Ice Age to Industrial Time

View full text Add to dashboard Cite

The Late-Glacial and Holocene sedimentary history of the Hauts-Monts area (western Lake Geneva, Switzerland) is reconstructed combining high resolution seismic stratigraphy and well-dated sedimentary cores. Six reflections and seismic units are defined and represented by individual isopach maps, which are further combined to obtain a three-dimensional age-depth model. Slumps, blank areas and various geometries are identified using these seismic data.The sediment depositional areas have substantially changed throughout the lake during the end of the Late-Glacial and the Holocene. These changes are interpreted as the result of variations in the intensity of deep lake currents and the frequency of strong winds determining the distribution of sediment input from the Versoix River and from reworking of previously deposited sediments within the lacustrine basin.The identified changes in sediment distribution allowed us to reconstruct the lake's deep-current history and the evolution of dominant strong wind regimes from the Preboreal to present times. RESUME L'histoire sédimentaire tardiglaciaire et holocène de la zone des Hauts-Monts (partie occidentale du Lac Léman, Suisse) est reconstruite grâce à la combinaison d'une stratigraphie sismique à haute résolution et de datations de carottes de sédiment. Six réflecteurs et unités sismiques sont définis et représentés sous forme de cartes isopaques individuelles, qui réunies, établis-sent un modèle âge-profondeur tridimensionnel. Des slumps, des zones 'sourdes' et la géométrie des réflecteurs sont identifiés à l'aide des données sismiques.Les principales zones de dépôt sédimentaire ont considérablement changé durant la fin du Tardiglaciaire et l'Holocène. Ces changements, interprétés en terme d'intensité des courants lacustres profonds et de fréquence des forts vents, déterminent la distribution des apports sédimentaires de la Versoix et du remaniement des sédiments précédemment déposés au sein du bassin lacustre.Ces modifications dans la distribution des sédiments ont permis de reconstruire l'histoire des courants lacustres profonds et l'évolution des régimes dominants des fort vents du Préboréal à nos jours. mate changes allowing inter-site comparisons over distances of hundreds of kilometres (Eicher & Siegenthaler 1976, Kelts 1978, Lotter et al. 1992, Niessen et al. 1992, and eventually to the marine and ice core records. Depending on the part of the lacustrine basin -lake-bottom or delta/coastal areas-the sedimentary record is dominated by internal or external processes, respectively.

show abstract

Late and post-glacial history of meromictic Längsee (Austria), in respect to climate change and anthropogenic impact

Cited by 14 publications

References 0 publications

The long-term succession of cladoceran fauna and palaeoclimate forcing: A 14,600-year record from Plešné Lake, the Bohemian Forest

The long-term succession of cladoceran fauna and palaeoclimate forcing: A 14,600-year record from Plešné Lake, the Bohemian Forest

Late Glacial and Holocene history of Plešné Lake and its surrounding landscape based on pollen and palaeoalgological analyses

Bottom-current and wind-pattern changes as indicated by Late Glacial and Holocene sediments from western Lake Geneva (Switzerland)

Contact Info

Product

Resources

About