The benthic foraminiferal communities of the northern Adriatic continental shelf

Donnici, Sandra; Barbero, R. Serandrei

doi:10.1016/s0377-8398(01)00043-3

Cited by 133 publications

(102 citation statements)

References 19 publications

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“…It is also recoded south of the Po Delta, where it reaches relatively high concentrations at shallow depths (ca. 15-20 m) (Jorissen, 1988;Donnici and Serandrei Barbero, 2002). This species lives in areas characterized by high organic matter inputs and it shows a limited tolerance for anoxic conditions (Jorissen, 1988).…”

Section: Benthic Foraminifera or Ostracoda The Conclusionmentioning

confidence: 99%

Benthic foraminifera or Ostracoda? Comparing the accuracy of palaeoenvironmental indicators from a Pleistocene lagoon of the Romagna coastal plain (Italy)

Barbieri

Vaiani

2018

J. Micropalaeontol.

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Abstract. Integrated analyses of multiple groups of microfossils are frequently performed to unravel the palaeoenvironmental evolution of subsurface coastal successions, where the complex interaction among several palaeoecological factors can be detected with benthic assemblages. This work investigates the palaeoenvironmental resolution potential provided by benthic foraminifera and ostracoda within a Pleistocene lagoonal succession of the Romagna coastal plain (northern Italy). Quantitative approaches and statistical techniques have been applied to both groups in order to understand the main factors that controlled the composition of assemblages and compare the palaeoecological record provided by single fossil groups.The two faunal groups are characterized by the high dominance of opportunistic species (Ammonia tepidaAmmonia parkinsoniana and Cyprideis torosa); however, detailed palaeoecological information is inferred from less common taxa. Benthic foraminiferal assemblages are mainly determined by the frequencies of abnormal individuals and species related to high concentrations of organic matter, showing two assemblages: a stressed assemblage, consistent with a brackish-water environment subject to salinity and oxygen fluctuations, and an unstressed assemblage, which indicates more stable conditions. Despite the lower number of species, ostracoda show more significant differences in terms of species composition and ecological structure between their three assemblages, formed in response to a salinity gradient and indicative of inner, central, and outer lagoon conditions. The stratigraphic distribution of ostracod assemblages shows a general transgressive-regressive trend with minor fluctuations, whereas benthic foraminifera highlight the presence of a significant palaeoenvironmental stress.In this case, the higher abundance along the stratigraphic succession, the higher differentiation of the assemblages, and the well-defined relationship between taxa and ecological parameters determine Ostracoda as the most reliable fossil group for precise palaeoenvironmental reconstructions. Nevertheless, benthic foraminifera indicate palaeoenvironmental stress and can be used to refine the environmental interpretation in the presence of monospecific ostracod assemblages.

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Section: Benthic Foraminifera or Ostracoda The Conclusionmentioning

confidence: 99%

Benthic foraminifera or Ostracoda? Comparing the accuracy of palaeoenvironmental indicators from a Pleistocene lagoon of the Romagna coastal plain (Italy)

Barbieri

Vaiani

2018

J. Micropalaeontol.

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“…In general, continental organic matter is more refractory than organic matter primarily produced in marine settings since terrestrial-derived organic matter is degraded before reaching the marine environment (Zonneveld et al, 2010). High input of this terrestrial organic matter can provoke eutrophication and led to oxygen depletion at the bottom and pore waters (Van der Zwaan and Jorissen, 1991;Jorissen et al, 1992;Donnici and Serandrei Barbero, 2002) The inner-middle shelf Nonion fabum assemblage at the base of the section (Fig 7) indicates the most eutrophic conditions, suggesting organic matter run-off from the continent. This assemblage is characterised by low diversity and dominance of intermediate infaunal taxa (Figs.…”

Section: Accepted M Manuscriptmentioning

confidence: 99%

Messinian paleoenvironmental evolution in the lower Guadalquivir Basin (SW Spain) based on benthic foraminifera

Pérez-Asensio

Aguirre

Schmiedl

et al. 2012

Palaeogeography, Palaeoclimatology, Palaeoecology

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Benthic foraminiferal assemblages of a drill core from the lower Guadalquivir Basin (northern Gulf of Cádiz, SW Spain) have been analysed in order to reconstruct the paleoenvironmental evolution in the vicinity of the Betic seaways during the Messinian. The core consists of marine sediments ranging from the latest Tortonian to the early Pliocene. Changes in the abundance of certain marker species, planktonic/benthic ratio (P/B ratio), paleodepth estimated with a transfer function, content of sand grains and presence of glauconitic layers indicate a complete transgressive-regressive sea-level cycle from the bottom to the top of the section. An abrupt sea-level rise, from inner-middle shelf to middle slope, is recorded at the lowermost part of the core (latest Tortonian-earliest Messinian), followed by a relatively rapid shallowing from middle slope to outer shelf. Magnetobiostratigraphic data show These assemblages are dominated by Nonion fabum and Bulimina elongata, two taxa that are able to feed from continental low-quality organic matter, most likely derived from river run-off. The paleoenviromental evolution on the Atlantic side of Betic and Rifian seaways is similar during the Messinian, with a Messinian continuous sea-level lowering driven by regional tectonic uplift and upwelling-related waters reaching the upper slope. This study will further contribute to understand the role of tectonics on the sea-level changes as well as on the closure of the Atlantic-Mediterranean gateways that led to the MSC, and on the paleoceanography on the Atlantic sides of these corridors.

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“…group and the more marine groups: Asterigerinata mamilla, Cibicides lobatulus, and miliolids. According to Donnici and Serandrei-Barbero (2002), Discorbidae and Cibicidae taxa are typically found on substrates with abundant sand and vegetation and in nutrient-poor environments. The presence of miliolids is indicative, according to Redois and Debenay (1996), of slightly hypersaline, restricted environments which may prevail in a more enclosed part of a lagoon.…”

Section: Lithology and Foraminiferan Fauna: G1 Borehole (Gilão Area)mentioning

confidence: 99%

Chronology of the sedimentary processes during the postglacial sea level rise in two estuaries of the Algarve coast, Southern Portugal

Boski

Camacho

Moura

et al. 2008

Estuarine, Coastal and Shelf Science

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The benthic foraminiferal communities of the northern Adriatic continental shelf

Cited by 133 publications

References 19 publications

Benthic foraminifera or Ostracoda? Comparing the accuracy of palaeoenvironmental indicators from a Pleistocene lagoon of the Romagna coastal plain (Italy)

Benthic foraminifera or Ostracoda? Comparing the accuracy of palaeoenvironmental indicators from a Pleistocene lagoon of the Romagna coastal plain (Italy)

Messinian paleoenvironmental evolution in the lower Guadalquivir Basin (SW Spain) based on benthic foraminifera

Chronology of the sedimentary processes during the postglacial sea level rise in two estuaries of the Algarve coast, Southern Portugal

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