NDLI: Basal monothalamous and pseudochambered benthic foraminifera associated with planktonic foraminiferal shells and mineral grains from the Porcupine Abyssal Plain, NE Atlantic

Content Provider	Springer Nature Link
Author	Stefanoudis, Paris V. Gooday, Andrew J.
Copyright Year	2014
Abstract	We present a survey of ‘live’ (stained) and dead monothalamous (single-chambered, mainly spherical) and pseudochambered (chain-like) foraminifera associated with planktonic foraminiferal shells and mineral grains, based on two samples from one abyssal plain site (F2, 4,880 m water depth) and one abyssal hill site (H4, 4,330 m water depth) on the Porcupine Abyssal Plain (PAP), northeast Atlantic. Our study is the first to focus on this poorly known component of abyssal foraminiferal faunas and highlight their abundances and diversity at the PAP. In both samples these monothalamids and pseudochambered forms represented 27–35 % and 18–23 %, respectively, of the entire ‘live’ and dead foraminiferal assemblage (>150 μm, 0–1 cm sediment layer). Among 1,078 stained and dead specimens we recognise a total of 18 distinct morphotypes on the basis of test characteristics. Another 144 specimens could not be assigned to any morphotype and are regarded as indeterminate. Most of the monothalamids are small (<150 μm), although some incorporate planktonic foraminiferal shells to create larger structures. In absolute terms, stained and dead individuals of these morphotypes were more abundant at the abyssal hill site, although data from additional samples are needed to confirm if this is representative of differences between abyssal hills and the surrounding abyssal plain at the PAP. Agglutinated spheres and domes similar to some of our abyssal forms have been reported from shelf and slope settings, but they are generally much larger. Small agglutinated spheres are very common in the abyssal Pacific, at depths close to or below the carbonate compensation depth (CCD). However, they are composed largely of siliceous particles, including mineral grains, radiolarians and diatom fragments. In contrast, carbonate oozes at the PAP, situated above the CCD, are rich in coccoliths and planktonic foraminiferal shells, which are used in the construction of agglutinated spheres and domes. Our results underline the important contribution made by largely underestimated foraminiferal taxa to abyssal communities.
Starting Page	357
Ending Page	369
Page Count	13
File Format	PDF
ISSN	18671616
Journal	Marine Biodiversity
Volume Number	45
Issue Number	3
e-ISSN	18671624
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-10-14
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Single-chambered monothalamids Pseudochambered foraminifera Diversity Deep-sea benthos Abyssal faunas Biodiversity Freshwater & Marine Ecology Plant Systematics/Taxonomy/Biogeography Animal Systematics/Taxonomy/Biogeography
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Formation of agglutinated cysts by the foraminiferan Sphaeroidina bulloides on the Porcupine Abyssal Plain (NE Atlantic)

Porcupine abyssal plain (ne atlantic): a stable isotope.

Toxisarcon taimyr sp. nov., a new large monothalamous foraminifer from the Kara Sea inner shelf

Modern benthic foraminiferal diversity of Jeju Island and initial insights into the total foraminiferal diversity of Korea

The influence of productivity on abyssal foraminiferal biodiversity

Two new genera and species of the monothalamous foraminifera from coastal waters of the Black Sea

Formation of agglutinated cysts by the foraminiferan Sphaeroidina bulloides on the Porcupine Abyssal Plain (NE Atlantic)

Basal foraminifera and gromiids (Protista) at the Håkon-Mosby Mud Volcano (Barents Sea slope)

Early Jurassic benthic foraminiferal diversification and biozones in shallow-marine carbonates of western Tethys

Basal monothalamous and pseudochambered benthic foraminifera associated with planktonic foraminiferal shells and mineral grains from the Porcupine Abyssal Plain, NE Atlantic

Similar Documents

Formation of agglutinated cysts by the foraminiferan Sphaeroidina bulloides on the Porcupine Abyssal Plain (NE Atlantic)

Porcupine abyssal plain (ne atlantic): a stable isotope.

Toxisarcon taimyr sp. nov., a new large monothalamous foraminifer from the Kara Sea inner shelf

Modern benthic foraminiferal diversity of Jeju Island and initial insights into the total foraminiferal diversity of Korea

The influence of productivity on abyssal foraminiferal biodiversity

Two new genera and species of the monothalamous foraminifera from coastal waters of the Black Sea

Formation of agglutinated cysts by the foraminiferan Sphaeroidina bulloides on the Porcupine Abyssal Plain (NE Atlantic)

Basal foraminifera and gromiids (Protista) at the Håkon-Mosby Mud Volcano (Barents Sea slope)

Early Jurassic benthic foraminiferal diversification and biozones in shallow-marine carbonates of western Tethys

Basal monothalamous and pseudochambered benthic foraminifera associated with planktonic foraminiferal shells and mineral grains from the Porcupine Abyssal Plain, NE Atlantic