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Recent benthic foraminiferal assemblages from cold-water coral mounds in the porcupine seabight

Joachim Schönfeld, Wolf-Christian Dullo, Olaf Pfannkuche, André Freiwald, Andres Rüggeberg UGent, Steffi Schmidt and Janice Weston (2011) FACIES. 57(2). p.187-213
abstract
Cold-water coral ecosystems are characterised by a high diversity and population density. Living and dead foraminiferal assemblages from 20 surface sediment samples from Galway and Propeller Mounds were analysed to describe the distribution patterns of benthic foraminifera on coral mounds in relation to different sedimentary facies. Hard substrates were examined to assess the foraminiferal microhabitats and diversities in the coral framework. We recognised 131 different species, of which 27 prefer an attached lifestyle. Epibenthic species are the main constituents of the living and dead foraminiferal assemblages. The frequent species Discanomalina coronata was associated with coral rubble, Cibicides refulgens showed preference to the off-mound sand veneer, and Uvigerina mediterranea displayed abundance maxima in the main depositional area on the southern flank of Galway Mound, and in the muds around Propeller Mound. The distribution of these species is rather governed by their specific ecological demands and microhabitat availability than by the sedimentary facies. Benthic foraminiferal assemblages from coral mounds fit well into basin-wide-scale distribution patterns of species along the western European continental margin. The diversity of the foraminiferal faunas is not higher on the carbonate mounds as in their vicinity. The living assemblages show a broad mid-slope diversity maximum between 500 and 1,300 m water depth, which is the depth interval of coral mound formation at the Celtic and Amorican Margin. The foraminiferal diversity maximum is about 700 m shallower than comparable maxima of nematodes and bivalves. This suggests that different processes are driving the foraminiferal and metazoan diversity patterns.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
OXYGEN-MINIMUM ZONE, DEEP-SEA, LOPHELIA-PERTUSA L, NE ATLANTIC, CONTINENTAL-MARGIN, CARBONATE MOUND, NORTHEAST ATLANTIC, DISTRIBUTIONAL PATTERNS, COMMUNITY STRUCTURE, SPECIES-DIVERSITY, Benthic foraminifera, Epizoans, Cold-water coral ecosystems, Carbonate mound
journal title
FACIES
Facies
volume
57
issue
2
pages
187 - 213
Web of Science type
Article
Web of Science id
000288258000001
JCR category
GEOLOGY
JCR impact factor
1.388 (2011)
JCR rank
16/46 (2011)
JCR quartile
2 (2011)
ISSN
0172-9179
DOI
10.1007/s10347-010-0234-0
project
HERMIONE (Hotspot Ecosystem Research and Man's Impact on European seas)
language
English
UGent publication?
yes
classification
A1
copyright statement
I have transferred the copyright for this publication to the publisher
id
1244641
handle
http://hdl.handle.net/1854/LU-1244641
date created
2011-05-26 13:01:13
date last changed
2011-06-09 09:42:01
@article{1244641,
  abstract     = {Cold-water coral ecosystems are characterised by a high diversity and population density. Living and dead foraminiferal assemblages from 20 surface sediment samples from Galway and Propeller Mounds were analysed to describe the distribution patterns of benthic foraminifera on coral mounds in relation to different sedimentary facies. Hard substrates were examined to assess the foraminiferal microhabitats and diversities in the coral framework. We recognised 131 different species, of which 27 prefer an attached lifestyle. Epibenthic species are the main constituents of the living and dead foraminiferal assemblages. The frequent species Discanomalina coronata was associated with coral rubble, Cibicides refulgens showed preference to the off-mound sand veneer, and Uvigerina mediterranea displayed abundance maxima in the main depositional area on the southern flank of Galway Mound, and in the muds around Propeller Mound. The distribution of these species is rather governed by their specific ecological demands and microhabitat availability than by the sedimentary facies. Benthic foraminiferal assemblages from coral mounds fit well into basin-wide-scale distribution patterns of species along the western European continental margin. The diversity of the foraminiferal faunas is not higher on the carbonate mounds as in their vicinity. The living assemblages show a broad mid-slope diversity maximum between 500 and 1,300 m water depth, which is the depth interval of coral mound formation at the Celtic and Amorican Margin. The foraminiferal diversity maximum is about 700 m shallower than comparable maxima of nematodes and bivalves. This suggests that different processes are driving the foraminiferal and metazoan diversity patterns.},
  author       = {Sch{\"o}nfeld, Joachim and Dullo, Wolf-Christian and Pfannkuche, Olaf and Freiwald, Andr{\'e} and R{\"u}ggeberg, Andres and Schmidt, Steffi and Weston, Janice},
  issn         = {0172-9179},
  journal      = {FACIES},
  keyword      = {OXYGEN-MINIMUM ZONE,DEEP-SEA,LOPHELIA-PERTUSA L,NE ATLANTIC,CONTINENTAL-MARGIN,CARBONATE MOUND,NORTHEAST ATLANTIC,DISTRIBUTIONAL PATTERNS,COMMUNITY STRUCTURE,SPECIES-DIVERSITY,Benthic foraminifera,Epizoans,Cold-water coral ecosystems,Carbonate mound},
  language     = {eng},
  number       = {2},
  pages        = {187--213},
  title        = {Recent benthic foraminiferal assemblages from cold-water coral mounds in the porcupine seabight},
  url          = {http://dx.doi.org/10.1007/s10347-010-0234-0},
  volume       = {57},
  year         = {2011},
}

Chicago
Schönfeld, Joachim, Wolf-Christian Dullo, Olaf Pfannkuche, André Freiwald, Andres Rüggeberg, Steffi Schmidt, and Janice Weston. 2011. “Recent Benthic Foraminiferal Assemblages from Cold-water Coral Mounds in the Porcupine Seabight.” Facies 57 (2): 187–213.
APA
Schönfeld, J., Dullo, W.-C., Pfannkuche, O., Freiwald, A., Rüggeberg, A., Schmidt, S., & Weston, J. (2011). Recent benthic foraminiferal assemblages from cold-water coral mounds in the porcupine seabight. FACIES, 57(2), 187–213.
Vancouver
1.
Schönfeld J, Dullo W-C, Pfannkuche O, Freiwald A, Rüggeberg A, Schmidt S, et al. Recent benthic foraminiferal assemblages from cold-water coral mounds in the porcupine seabight. FACIES. 2011;57(2):187–213.
MLA
Schönfeld, Joachim, Wolf-Christian Dullo, Olaf Pfannkuche, et al. “Recent Benthic Foraminiferal Assemblages from Cold-water Coral Mounds in the Porcupine Seabight.” FACIES 57.2 (2011): 187–213. Print.