FN Archimer Export Format
PT J
TI Patterns of Macrofaunal Biodiversity Across the Clarion-Clipperton Zone: An Area Targeted for Seabed Mining
BT 
AF Washburn, Travis W.
   Menot, Lenaick
   Bonifácio, Paulo
   Pape, Ellen
   Błażewicz, Magdalena
   Bribiesca-Contreras, Guadalupe
   Dahlgren, Thomas G.
   Fukushima, Tomohiko
   Glover, Adrian G.
   Ju, Se Jong
   Kaiser, Stefanie
   Yu, Ok Hwan
   Smith, Craig R.
AS 1:1;2:2;3:2;4:3;5:4;6:5;7:6,7;8:8;9:5;10:9;11:4;12:9;13:1;
FF 1:;2:PDG-REM-EEP-LEP;3:PDG-REM-EEP-LEP;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;
C1 Department of Oceanography, University of Hawai‘i at Mānoa, Honolulu, HI, United States
   Ifremer, Centre Bretagne, REM EEP, Laboratoire Environnement Profond, Plouzané, France
   Marine Biology Research Group, Ghent University, Ghent, Belgium
   Department of Invertebrate Zoology and Hydrobiology, University of Lodz, Łódź, Poland
   Department of Life Sciences, Natural History Museum, London, United Kingdom
   Department of Marine Sciences, University of Gothenburg, Gothenburg, Sweden
   Norwegian Research Centre, Bergen, Norway
   Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan
   Korea Institute of Ocean Science and Technology, Busan, South Korea
C2 UNIV HAWAII MANOA, USA
   IFREMER, FRANCE
   UNIV GHENT, BELGIUM
   UNIV LODZ, POLAND
   NHM, UK
   UNIV GOTHENBURG, SWEDEN
   NORCE, NORWAY
   JAMSTEC, JAPAN
   KIOST, SOUTH KOREA
SI BREST
SE PDG-REM-EEP-LEP
IN WOS Ifremer UPR
   DOAJ
   copubli-europe
   copubli-int-hors-europe
IF 5.247
TC 31
UR https://archimer.ifremer.fr/doc/00687/79937/82834.pdf
   https://archimer.ifremer.fr/doc/00687/79937/82835.pdf
LA English
DT Article
DE ;macrofauna;deep-sea mining;biodiversity;polychaeta;manganese nodules;POC flux;species ranges;areas of particular environmental interest
AB Macrofauna are an abundant and diverse component of abyssal benthic communities and are likely to be heavily impacted by polymetallic nodule mining in the Clarion-Clipperton Zone (CCZ). In 2012, the International Seabed Authority (ISA) used available benthic biodiversity data and environmental proxies to establish nine no-mining areas, called Areas of Particular Environmental Interest (APEIs) in the CCZ. The APEIs were intended as a representative system of protected areas to safeguard biodiversity and ecosystem function across the region from mining impacts. Since 2012, a number of research programs have collected additional ecological baseline data from the CCZ. We assemble and analyze macrofaunal biodiversity data sets from eight studies, focusing on three dominant taxa (Polychaeta, Tanaidacea, and Isopoda), and encompassing 477 box-core samples to address the following questions: (1) How do macrofaunal abundance, biodiversity, and community structure vary across the CCZ, and what are the potential ecological drivers? (2) How representative are APEIs of the nearest contractor areas? (3) How broadly do macrofaunal species range across the CCZ region? and (4) What scientific gaps hinder our understanding of macrofaunal biodiversity and biogeography in the CCZ? Our analyses led us to hypothesize that sampling efficiencies vary across macrofaunal data sets from the CCZ, making quantitative comparisons between studies challenging. Nonetheless, we found that macrofaunal abundance and diversity varied substantially across the CCZ, likely due in part to variations in particulate organic carbon (POC) flux and nodule abundance. Most macrofaunal species were collected only as singletons or doubletons, with additional species still accumulating rapidly at all sites, and with most collected species appearing to be new to science. Thus, macrofaunal diversity remains poorly sampled and described across the CCZ, especially within APEIs, where a total of nine box cores have been taken across three APEIs. Some common macrofaunal species ranged over 600–3000 km, while other locally abundant species were collected across ≤ 200 km. The vast majority of macrofaunal species are rare, have been collected only at single sites, and may have restricted ranges. Major impediments to understanding baseline conditions of macrofaunal biodiversity across the CCZ include: (1) limited taxonomic description and/or barcoding of the diverse macrofauna, (2) inadequate sampling in most of the CCZ, especially within APEIs, and (3) lack of consistent sampling protocols and efficiencies. 
PY 2021
PD APR
SO Frontiers In Marine Science
SN 2296-7745
PU Frontiers Media SA
VL 8
UT 000637060300001
DI 10.3389/fmars.2021.626571
ID 79937
ER

EF