Diversity and abundances of foraminifera in living sponges of the Norwegian-Greenland Sea

Lintner, Bianca; Lintner, Michael; Wollenburg, Jutta E; Wurz, Erik; Heinz, Petra

doi:10.1016/j.seares.2022.102245

Cited by 3 publications

(1 citation statement)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…They are less or not sensitive to the calcitic dissolution that affects the calcareous forms at great depth (Berger 1972;Sliter et al 1975), or under extreme conditions (Nardelli et al 2022). Agglutinated foraminifers exploit different life strategies and microhabitats, with species thriving as infaunal or epifaunal (Murray 2006) and also able to exhibit an epibiotic or epilithic lifestyle (Waskowska & Kaminski 2019;Lintner et al 2022).…”

Section: Introductionmentioning

confidence: 99%

Common and Rare Lower Pliocene Agglutinated Foraminifers of Piedmont (Northwestern Italy): Distribution, Taxonomy and Paleoenvironment

VIOLANTI

2023

RIPS

View full text Add to dashboard Cite

Agglutinated foraminiferal taxa from five stratigraphic sections and eightheen small outcrops of Lower Pliocene deposits were quantitatively analyzed for paleoenvironmental purposes. The studied area is located in Piedmont, northwestern Italy, and includes the northeastern Monferrato, the southern margins of the Turin Hill, the Astigiano, the Albese and part of the Langhe. Studied samples were mainly collected in the marine Argille Azzurre (AA) Formation, and cover a time interval ranging from the MPl1 zone to the MPl4a subzone in the Pliocene Mediterranean Foraminiferal Zonation. Most of the agglutinated assemblages are dominated, or exclusively made, by calc-agglutinated infaunal species of elongated tapered or subcylindrical shape, mainly represented by Bigenerina nodosaria and Martinottiella communis. The deep-water infaunal Cylindroclavulina rudis, Eggerella bradyi and Martinottiella perparva characterized the open-sea basinal facies deposited in the central part of the Piedmont region during the earliest Pliocene. These taxa progressively decreased in abundance until to disappear, and were replaced in the upper silty succession by shelf taxa, dominated by Bannerella gibbosa and Textularia aciculata. In particular, T. aciculata showed its highest abundances in infralittoral to shallow circalittoral muddy sediments of probable fluvial origin, widespread in the Astigiano area, and could be suggested as a typical species of shallow marine delta deposits. Among the 42 agglutinated species here determined, Cyclammina cancellata and Reophax scorpiurus were seldom reported in previous works, Ammobaculites agglutinans, Ammoscalaria spp., Cribrostomoides subglobosus subglobosus, Haplophragmoides canariensis, Psammosphaera spp., and Psammolingulina papillosa were not previously found. The occurrence of these rare taxa could be the proxy of particular sea-floor conditions during the MPl3 zone, characterized by a locally active bottom circulation and mesotrophic waters.

show abstract

Section: Introductionmentioning

confidence: 99%

Common and Rare Lower Pliocene Agglutinated Foraminifers of Piedmont (Northwestern Italy): Distribution, Taxonomy and Paleoenvironment

VIOLANTI

2023

RIPS

View full text Add to dashboard Cite

show abstract

Climate forcing of regional deep-sea biodiversity documented by benthic foraminifera

Schmiedl

Milker

Mackensen

2023

Earth-Science Reviews

View full text Add to dashboard Cite

Foraminiferal population dynamics on elevated plastic substrates and in sediments at 4000 m in the Eastern Pacific

Burkett,

Rathburn,

Gonzalez Acevedo

et al. 2023

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Although plastics are becoming more prevalent, even in the far reaches of the deep sea, the influence of these novel attachment surfaces has yet to be systematically studied regarding the ecology and distribution patterns of attached fauna. Herein, we report the abundances and vertical distribution patterns of epibenthic foraminifera living on plastics after 2 yr on the seafloor at 4000 m water depth and compare these populations with those of nearby naturally occurring substrates and their surrounding sediments. After 2 yr, 239 foraminifera were found attached to 4 Seafloor Epibenthic Attachment Cubes (SEA3s). Dominant taxa included Cibicidoides wuellerstorfi var. lobatulus, Pyrgoella sp., and arborescent foraminifera. Variations in colonization height and abundance between plastic types were observed, but no clear drivers of these patterns can be ascertained from this study. Foraminiferal populations from elevated substrates and the nearby sediment cores showed no significant overlap in populations, suggesting that foraminifera colonizing SEA3s did not originate from surrounding sediments and likely recruited from other elevated substrates common in the area (e.g. glass sponges). This study demonstrates that plastics serve as hard substrates which deep-sea foraminifera inhabit and that plastics may persist for extended periods of time, potentially altering ecosystem compositions in environments dominated by soft sediments. There is a significant difference between colonizing epifaunal and sediment populations, which raises interesting questions about colonization and distribution processes in deep bathyal and abyssal environments. Epibenthic foraminifera attached to elevated substrates may be underrepresented in the sedimentary record through preservation and sampling biases.

show abstract

Diversity and abundances of foraminifera in living sponges of the Norwegian-Greenland Sea

Cited by 3 publications

References 44 publications

Common and Rare Lower Pliocene Agglutinated Foraminifers of Piedmont (Northwestern Italy): Distribution, Taxonomy and Paleoenvironment

Common and Rare Lower Pliocene Agglutinated Foraminifers of Piedmont (Northwestern Italy): Distribution, Taxonomy and Paleoenvironment

Climate forcing of regional deep-sea biodiversity documented by benthic foraminifera

Foraminiferal population dynamics on elevated plastic substrates and in sediments at 4000 m in the Eastern Pacific

Contact Info

Product

Resources

About