FN Archimer Export Format
PT J
TI Ferromanganese nodule fauna in the Tropical North Pacific Ocean: Species richness, faunal cover and spatial distribution
BT 
AF VEILLETTE, J
   SARRAZIN, Jozee
   GOODAY, A
   GALERON, Joelle
   CAPRAIS, Jean-Claude
   VANGRIESHEIM, Annick
   ETOUBLEAU, Joel
   CHRISTIAN, J
   JUNIPER, S
AS 1:1;2:2;3:3;4:2;5:2;6:2;7:2;8:4;9:1;
FF 1:;2:PDG-DOP-DCB-EEP-LEP;3:;4:PDG-DOP-DCB-EEP-LEP;5:PDG-DOP-DCB-EEP-LEP;6:PDG-DOP-DCB-EEP-LEP;7:PDG-DOP-DCB-GM-LGM;8:;9:;
C1 Univ Quebec, Ctr GEOTOP, Montreal, PQ H3C 3P8, Canada.
   IFREMER, Ctr Brest, Dept Etude Ecosyst Profonds, F-29280 Plouzane, France.
   Univ Southampton, Natl Oceanog Ctr, Southampton SO14 3ZH, Hants, England.
   Univ Victoria, Ctr Climate Modelling & Analysis, Fisheries & Oceans Canada, Victoria, BC V8W 2Y2, Canada.
C2 UNIV QUEBEC (UQAM-GEOTOP), CANADA
   IFREMER, FRANCE
   NOC, UK
   UNIV VICTORIA, CANADA
SI BREST
SE PDG-DOP-DCB-EEP-LEP
   PDG-DOP-DCB-GM-LGM
IN WOS Ifremer jusqu'en 2018
   copubli-europe
   copubli-int-hors-europe
IF 1.795
TC 60
UR https://archimer.ifremer.fr/doc/2007/publication-3537.pdf
LA English
DT Article
CR NIXONAUT (NIXO 48)
   NODINAUT
BO Le Nadir
   L'Atalante
DE ;Environmental impacts;Environmental factors;Geographical distribution;Agglutinated foraminifera;Fixed fauna;Ferromanganese nodules
AB The poorly known ferromanganese nodule fauna is a widespread hard substratum community in the deep sea that will be considerably impacted by large-scale nodule mining operations. The objective of this study was to analyze the spatial distribution of the fauna attached to nodules in the Clarion-Clipperton Fracture Zone at two scales; a regional scale that includes the east (14 degrees N, 130 degrees W) and the west (9 degrees N, 150 degrees W) zones and a local scale in which different geological facies (A, B, C and west) are recognizable. The fauna associated with 235 nodules was quantitatively described: 104 nodules from the east zone (15 of facies A, 50 of facies B and 39 of facies C) and 131 nodules from the west zone. Percent cover was used to quantify the extent of colonization at the time of sampling, for 42 species out of the 62 live species observed. Fauna covered up to 18% of exposed nodule surface with an average of about 3%. While species richness increased with exposed nodule surface, both at the regional and at the facies scales (except for facies A), total species density decreased (again except for facies A). When all nodules were included in the statistical analysis, there was no relation between faunal cover and exposed nodule surface. Nevertheless, faunal cover did decrease with exposed nodule surface for the east zone in general and for both facies B and C in particular. Species distributions among facies were significantly different but explained only a very small portion of the variance (similar to 5%). We identified two groups of associated species: a first group of two species and a second group of six species. The other species (34) were independently distributed.. suggesting that species interactions play only a minor role in the spatial distribution of nodule fauna. The flux of particulate organic carbon to the bottom is the only major environmental factor considered to vary between the two zones within this study. We conclude that the higher species richness and higher percent faunal cover of the east zone can be partially attributed to greater food availability derived from surface inputs. Moreover, the surfaces of facies B and C nodules had a complex, knobby microrelief, creating microhabitat heterogeneity that may also have contributed to the greater species richness observed in the cast zone.
PY 2007
PD NOV
SO Deep Sea Research Part I: Oceanographic Research Papers
SN 0967-0637
PU Elsevier
VL 54
IS 11
UT 000251665400004
BP 1912
EP 1935
DI 10.1016/j.dsr.2007.06.011
ID 3537
ER

EF