A statistical evaluation of the microhabitats of living (stained) infaunal benthic foraminifera

Buzas, Martin A.; Culver, Stephen J.; Jorissen, Frans

doi:10.1016/0377-8398(93)90040-5

Cited by 117 publications

(68 citation statements)

References 19 publications

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“…After the first classification with four main microhabitats proposed by Corliss and Chen (1988), it was argued that only species living on elevated substrates can be considered as ''epifaunal'' (Buzas et al, 1993). Therefore, in the soft bottom communities described in this study, we recognise only three different groups: shallow infaunal, intermediate infaunal and deep infaunal species.…”

Section: Study Area Materials and Methodsmentioning

confidence: 72%

Live benthic foraminiferal faunas from the Bay of Biscay: faunal density, composition, and microhabitats

Fontanier

Jorissen

Licari

et al. 2002

Deep Sea Research Part I: Oceanographic Research Papers

461

280

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In the meso-oligotrophic Bay of Biscay, a diminishing downward organic matter flux with depth is accompanied by an important decrease of the live foraminiferal density. Although bottom water oxygenation is not directly influenced by organic matter input, the oxygenation of interstitial waters and the primary redox fronts do change in response to variations of the organic matter flux. The occurrence of deep and intermediate infaunal taxa can be linked to fundamental redox fronts and putative associated bacterial consortia. Our data are in agreement with the TROXmodel, which explains the benthic foraminiferal microhabitat as a function of organic flux and benthic ecosystem oxygenation. Both the depth of the principle redox fronts and the microhabitat of deep infaunal species show important increases with depth. At the deepest oligotrophic stations, deep infaunal faunas become relatively poor. Therefore, the exported flux of organic matter appears to be the main parameter controlling the composition and the vertical distribution of benthic foraminiferal faunas below the sediment-water interface. The oxygenation of pore waters plays only a minor role. A species-level adaptation of the TROX-model is presented for the Bay of Biscay. r

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Section: Study Area Materials and Methodsmentioning

confidence: 72%

Live benthic foraminiferal faunas from the Bay of Biscay: faunal density, composition, and microhabitats

Fontanier

Jorissen

Licari

et al. 2002

Deep Sea Research Part I: Oceanographic Research Papers

461

280

View full text Add to dashboard Cite

show abstract

“…Yingst 1978, Ellison 1984, Rudnick et al 1985, Josefson & Widbom 1988 and in soft sediments the majority occurs infaunally (Buzas et al 1993). They have been encountered living to depths of 30 to 35 cm (e.g.…”

Section: Introductionmentioning

confidence: 99%

Tolerance of benthic foraminifera (Protista:Sarcodina) to hydrogen sulphide

Moodley¹,

Schaub²,

Zwaan³

et al. 1998

Mar. Ecol. Prog. Ser.

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Benthic foraminlfera are dominant members of the meiofauna, commonly occurring below the anoxic-oxic interface in marine sediments. The absence of oxygen in marine coastal sediments is often correlated with the formation of hydrogen sulphide. In this study the tolerance of benthic foraminifera (from the northwestern Adriatic Sea) to hydrogen sulphide was examined experimentally. Although the foraminiferal assemblage exhib~ted a high tolerance to short-term exposure (21 d ) , prolonged exposure to sulph~dic conditions (66 d with a final concentration of 12 PM dissolved hydrogen sulphide) resulted in a significant reduction of total foraminiferal densities with time. Reproduction was evident under oxic conditio~s but none of the gencra prc!iferated under sillphidic conditions. This implies that tolerance of sulphidic conditions was restricted to survival and that sulphlde may be a prominent distnbutional factor for benthic foraminifera.

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“…[36,37,[41][42][43][44][45][46][47][48][49][50][51][52][53][54]. These factors may vary seasonally or be influenced by large scale palaeoceanographicpalaeogeographic changes, and benthic foraminifera may migrate about through the sediment in response to these changes [21,37,55,56].…”

Section: Environmental Setting Of the Oligocene Afales Basin Derived mentioning

confidence: 99%

Palaeoenvironmental reconstruction of the Oligocene Afales Basin, Ithaki island, western Greece

Drinia

2009

Open Geosciences

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Assemblages of benthic foraminifera from one clastic succession in the Afales Basin (Ithaki Island, western Greece) were investigated to reconstruct palaeoenvironmental conditions during the Oligocene. The section consists of alternating hemipelagic marls and detrital deposits, designated as flysch-like beds, attributed to biostratigraphic Zones P20 and P21. Planktic percentages are mostly high (66-80%). Benthic foraminiferal assemblages comprise calcareous and agglutinated taxa (up to 15%). The prevalence of epifaunal foraminifera indicates good ventilation of the bottom water resulting from basin morphology, which enabled the undisturbed flow of water throughout the basin. Palaeodepth estimates imply bathyal deposition, from about 800 to 1200 m deep. The benthic foraminiferal fauna is of high diversity along the section, as is expected in deep marine environments. The abundances of the most common foraminiferal taxa (Cibicidoides spp., Oridorsalis umbonatus, Gyroidinoides spp., Stilostomella spp., Nodosariidae, Nuttallides umbonifera) are quite variable and imply generally oligotrophic to mesotrophic environmental conditions with variable organic flux.

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A statistical evaluation of the microhabitats of living (stained) infaunal benthic foraminifera

Cited by 117 publications

References 19 publications

Live benthic foraminiferal faunas from the Bay of Biscay: faunal density, composition, and microhabitats

Live benthic foraminiferal faunas from the Bay of Biscay: faunal density, composition, and microhabitats

Tolerance of benthic foraminifera (Protista:Sarcodina) to hydrogen sulphide

Palaeoenvironmental reconstruction of the Oligocene Afales Basin, Ithaki island, western Greece

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