The Diatom Species Fragilaria martyi (Heribaud) Lange-Bertalot, Identity and Ecology

Witkowski, Andrzej; Lange‐Bertalot, Horst; Metzeltin, Ditmar

doi:10.1016/s0003-9365(96)80015-7

Cited by 36 publications

(58 citation statements)

References 6 publications

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“…living on sand grains (Round et al, 1990). Mass occurrences of S. martyi have been often reported in calcium-rich sediments and in calcareous gyttja (Witkowski et al, 1995). This zone may therefore correspond to an episode of increased mineral influx to the lake, presumably as a result of erosion of less stable soils.…”

Section: Zone Rdaz2: Sample 890 (15150 Cal Yr Bp Best Estimate)mentioning

confidence: 99%

Environmental and climate reconstruction of the late-glacial-Holocene transition from a lake sediment sequence in Aubrac, French Massif Central: Chironomid and diatom evidence

Gandouin

Rioual

Paillès

et al. 2016

Palaeogeography, Palaeoclimatology, Palaeoecology

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International audienceThe analysis of fossil chironomid and diatom assemblages from a sedimentary record from Les Roustieres peat bog (Massif Central, France, 1196 m asl) allows the reconstruction of past environmental and climate changes during the late-glacial and early Holocene. Chironomid assemblages showed that the infilling of the palaeolake had commenced during the Oldest Dryas (GS-2b) as suggested by the rapid decrease in chironomid species associated with the cold and deep zone of lakes and by their replacement by littoral and eutrophic taxa. Quantitative July temperature reconstructions, based on the chironomid data, suggest that mean July air temperature (Tjul) ranged between 6 degrees C and 11 degrees C at the termination of the Oldest Dryas period (GS-2b). Climate began to warm at the start of the Bolling period (GI-1e), between 15,000 and 14,800 cal yr BP, with a rise in Tjul of about 4 degrees C. This climate warming is contemporaneous with lake eutrophication as suggested by diatoms and chironomids. Maximum temperatures of 13-14 degrees C were reached around 13,600 cal yr BP during the Allered period (GI-1c-GI-1a). The Younger Dryas period (GS-1) is marked by a return to cold conditions with Tjul of about 10 degrees C during a first phase, then 13 degrees C in its terminal part. A probable increase in the duration of the ice-cover may have favoured arctic and alpine diatom species. The early-Holocene climate improvement is marked by a rise in Tjul of about 3 degrees C. (C) 2016 Elsevier B.V. All rights reserved

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Section: Zone Rdaz2: Sample 890 (15150 Cal Yr Bp Best Estimate)mentioning

confidence: 99%

Environmental and climate reconstruction of the late-glacial-Holocene transition from a lake sediment sequence in Aubrac, French Massif Central: Chironomid and diatom evidence

Gandouin

Rioual

Paillès

et al. 2016

Palaeogeography, Palaeoclimatology, Palaeoecology

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“…Diatom identifications were based on the works of Podzorski (1985), Krammer & Lange-Bertalot (1986, 1991a, b, 1997, Sala et al (1993), Lange-Bertalot & Moser (1994), , , Witkowski et al (1996), Metzeltin & Lange-Bertalot (1998), Lange-Bertalot & Genkal (1999), Reichardt (1999), Lange-Bertalot (2001), Krammer (1992Krammer ( , 2000Krammer ( , 2002 and Håkansson (1990Håkansson ( , 2002 for freshwater taxa and Witkowski et al (2000) for marine forms. Diatoms were divided into groups according to their ecological requirements after Denys (1992), Hoffman (1994) and Van Dam et al (1994).…”

Section: Methodsmentioning

confidence: 99%

Diatom (Bacillariophyceae) flora of early Holocene freshwater sediments from Skalafjord, Faeroe Islands

Witon¹,

Witkowski

2003

J. Micropalaeontol.

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Abstract. Relative abundance data of diatom (Bacillariophyceae) species were generated for sediment core SKPC-01B from the Skalafjord, Faeroe Islands. The record shows distinct temporal changes in species composition. In the lowermost 65 cm of the 230 cm long core a species-rich freshwater diatom assemblage was found. Most of the taxa observed in this section are typical of oligotrophic to dystrophic lakes in northern Europe (Scandinavia, Iceland and Spitsbergen). Above this interval the diatom flora is dominated by marine taxa. The change from a freshwater to a marine flora is inferred to be caused by rising sea-level that took place about 7700–6400 years BP. Drastic changes in the diatom species composition within the transitional core section show that environmental change in the Skalafjord took place in several pulses. The first stage included strong inflow (possibly catastrophic) of marine waters. As a possible trigger of this phenomenon the tsunami released by the Storegga Slide is proposed. Before the final flooding by marine waters, freshwater conditions were re-established within the Skalafjord. These results have important implications for the interpretation of the palaeogeographical development of the Eysturoy area. Hence, it is suggested that the Storegga Slide led to inflow of marine waters at a distinctly lower water level in the area of the Skalafjord than proposed in recent publications and that the inundation of the threshold in the fjord happened after the tsunami.

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“…Moreover, selected samples were analyzed under Scanning Electron Microscopy (SEM) at the Laboratory of Electron and Confocal Microscopy, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland. The individual diatom species were identified following descriptions presented by Bąk et al (2012), Witkowski (1994), Witkowski et al (2000), Potapova (1993, 1995), Snoeijs and Vilbaste (1994), Snoeijs and Kasperoviciene (1996), Snoeijs and Balashova (1998), and Krammer and Lange-Bertalot (1986, 1991a, 1991b. The diatom assemblages were grouped according to the salinity and environmental preferences after Kolbe (1927), Vos and de Wolf (1993), Van Dam et al (1994), and Witkowski et al (2000.…”

Section: Diatom Analysismentioning

confidence: 99%

“…The individual diatom species were identified following descriptions presented by Bąk et al (2012), Witkowski (1994), Witkowski et al (2000), Potapova (1993, 1995), Snoeijs and Vilbaste (1994), Snoeijs and Kasperoviciene (1996), Snoeijs and Balashova (1998), and Krammer and Lange-Bertalot (1986, 1991a, 1991b. The diatom assemblages were grouped according to the salinity and environmental preferences after Kolbe (1927), Vos and de Wolf (1993), Van Dam et al (1994), and Witkowski et al (2000. Additionally, grouping according to the habitat followed https://www.algaebase.org/ database, www.diatoms.org and Round (1981).…”

Section: Diatom Analysismentioning

confidence: 99%

Late Holocene Vistula River Floods Recorded in Grain Size Distributions and Diatom Assemblages of Marine Sediments of the Gulf of Gdańsk (Baltic Sea)

Mitręga,

Kokociński,

Jagodziński

et al. 2022

SSRN Journal

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The Diatom Species Fragilaria martyi (Heribaud) Lange-Bertalot, Identity and Ecology

Cited by 36 publications

References 6 publications

Environmental and climate reconstruction of the late-glacial-Holocene transition from a lake sediment sequence in Aubrac, French Massif Central: Chironomid and diatom evidence

Environmental and climate reconstruction of the late-glacial-Holocene transition from a lake sediment sequence in Aubrac, French Massif Central: Chironomid and diatom evidence

Diatom (Bacillariophyceae) flora of early Holocene freshwater sediments from Skalafjord, Faeroe Islands

Late Holocene Vistula River Floods Recorded in Grain Size Distributions and Diatom Assemblages of Marine Sediments of the Gulf of Gdańsk (Baltic Sea)

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