Preservation of organic-walled dinoflagellate cysts in different oxygen regimes: a 10,000 year natural experiment

Zonneveld, Karin A F; Versteegh, Gerard J.M.; Lange, Gert J. de

doi:10.1016/s0377-8398(96)00032-1

Cited by 192 publications

(110 citation statements)

References 25 publications

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“…Di¡erences may be explained by preferential preservation of L. machaerophorum over cysts of Protoperidinium spp., as indicated by e.g. the studies of Zonneveld (Zonneveld, 1996;Zonneveld et al, 1997Zonneveld et al, , 2001.…”

Section: Discussionmentioning

confidence: 91%

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Modern organic-walled dinoflagellate cyst distribution offshore NW Iberia; tracing the upwelling system

Sprangers

Dammers

Brinkhuis

et al. 2004

Review of Palaeobotany and Palynology

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The northwest Iberian ocean margin experiences seasonal upwelling of nutrient-rich water resulting in enhanced primary productivity. The quantitative organic-walled dinoflagellate cyst distribution and that of other palynomorphs has been determined in 37 box core-tops along three transects to trace the upwelling signal. Oligotrophic Impagidinium spp. represent the dominant offshore elements. Cysts of heterotrophic Protoperidinium spp. mainly occur in sediments of the seasonal upwelling area on the shelf and slope and show a sharp decrease offshore. The eutrophic autotrophic taxon Lingulodinium machaerophorum is also abundant in sediments of the seasonal upwelling area on the shelf and slope, and also decreases more offshore. Both relative as well as absolute numbers of these taxa may be used to trace the upwelling system despite potential taphonomic problems. Considering the overall similar environmental conditions with respect to the other two transects, the elevated palynomorph concentrations in the shielded Nazare ¤ Canyon samples may be seen to represent the actual fluxes of palynomorphs along the Iberian coast. If accepted, this would indicate a preservational and transport loss of cysts of an order of magnitude in other transects. ß

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Section: Discussionmentioning

confidence: 91%

“…X-axis shows distance from coast in km; rectangle is transect 1, cross is transect 2, triangle is Nazare ¤ transect. (Zonneveld et al, 1997) suggests that these cyst types, despite their dominance, may be underrepresented in the o¡shore samples. Nematosphaeropsis labyrinthus occurs in the o¡-shore section of the research area.…”

Section: Discussionmentioning

confidence: 99%

Modern organic-walled dinoflagellate cyst distribution offshore NW Iberia; tracing the upwelling system

Sprangers

Dammers

Brinkhuis

et al. 2004

Review of Palaeobotany and Palynology

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“…et al (1998), the organic wall of the dinocysts is not resistant to the oxygen-rich waters in the Antarctic domain and/or winnowing at depth and/or low sedimentation rates precludes preservation of these microfossils (e.g., Zonneveld et al, 1997Zonneveld et al, , 2001Versteegh and Zonneveld, 2002;Hopkins and McCarthy, 2002 Dinocyst species throughout Hole 1168A are largely cosmopolitan and rather long ranging, with important contributions of typical lowlatitude taxa. Dinocyst stratigraphic distribution broadly matches that known from the Northern Hemisphere and equatorial regions, although significant differences are noted (see below).…”

Section: H Brinkhuis Et Al Late Eocene-quaternary Dinoflagellate Cymentioning

confidence: 99%

Late Eocene–Quaternary Dinoflagellate Cysts from ODP Site 1168, off Western Tasmania

Brinkhuis¹,

Munsterman²,

Sengers³

et al. 2003

Proceedings of the Ocean Drilling Program, 189 Scientific Results

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Palynomorphs were studied in samples from Ocean Drilling Program (ODP) Leg 189, Hole 1168A (slope of the western margin of Tasmania; 2463 m water depth). Besides organic-walled dinoflagellate cysts (dinocysts), broad categories of other palynomorphs were quantified in terms of relative abundance. In this contribution, we provide an overview of the early late Eocene-Quaternary dinocyst distribution and illustrate main trends in palynomorph distribution.Dinocyst species throughout Hole 1168A are largely cosmopolitan with important contributions of typical low-latitude taxa and virtual absence of endemic Antarctic taxa. Dinocyst stratigraphic distribution broadly matches that known from the Northern Hemisphere and equatorial regions, although significant differences are noted. Selected potentially biochronostratigraphically useful events are summarized. The distribution of dinocysts in the middle-upper Miocene interval is rather patchy, probably due to prolonged exposure to oxygen. An important general aspect in the dinocyst assemblages is the near absence of Antarctic endemic species and the apparent influence of relatively warm waters throughout the succession at Site 1168. General palynomorph distribution indicates continued deepening from an initial shallow, even restricted, marine setting from late Eocene-Quaternary times. A curious massive influx of small skolochorate acritarchs is recorded throughout the late early-early middle Miocene; the significance of this

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“…Oxidation will ultimately change the relative species composition of a fossil assemblage as well as the absolute abundances, thus potentially obstructing accurate paleoenvironmental reconstructions. Indeed, there is evidence that not all dinocysts have the same preservation potential, with Proto-peridinium cysts being some of the ¢rst to be destroyed (Zonneveld et al, 1997(Zonneveld et al, , 2001Versteegh and Zonneveld, 2002). Although the chemical composition of Protoperidinium cysts is unknown, the typically pale brown and smooth nature of the wall distinguish them from that of other dino£a-gellate cysts, notably those of the gonyaulacoid lineage.…”

Section: Introductionmentioning

confidence: 99%

Late Quaternary Protoperidinium cysts as indicators of paleoproductivity in the northern Arabian Sea

Reichart

Brinkhuis

2003

Marine Micropaleontology

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The reliability of organic-walled cysts of the heterotrophic dinoflagellate Protoperidinium as paleoproductivity indicators and the influence of bottom water oxygenation on cyst preservation is assessed by using Arabian Sea records of the past V125 kyr as a natural laboratory. Multidisciplinary geochemical, micropaleontological and palynological datasets are integrated to analyze the relationship between Protoperidinium cyst concentrations and other paleoproductivity proxies. Differential preservation potential is quantified in order to establish threshold oxidative degradation values for a possible application of quantitative Protoperidinium cyst records in paleoenvironmental reconstructions. Results indicate that variations in Protoperidinium cyst concentration closely correspond to other marine productivity and/or upwelling proxies. Although oxygenation will lead to significant cyst degradation, and thus decreased concentrations, down-core patterns in Protoperidinium cyst concentration still primarily reflect changes in sea surface productivity. In view of differential preservation among dinoflagellate cysts, down-core variations in relative abundance of Protoperidinium should be treated with caution. ß

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Preservation of organic-walled dinoflagellate cysts in different oxygen regimes: a 10,000 year natural experiment

Cited by 192 publications

References 25 publications

Modern organic-walled dinoflagellate cyst distribution offshore NW Iberia; tracing the upwelling system

Modern organic-walled dinoflagellate cyst distribution offshore NW Iberia; tracing the upwelling system

Late Eocene–Quaternary Dinoflagellate Cysts from ODP Site 1168, off Western Tasmania

Late Quaternary Protoperidinium cysts as indicators of paleoproductivity in the northern Arabian Sea

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