FN Archimer Export Format PT J TI Digging deep: lessons learned from meiofaunal responses to a disturbance experiment in the Clarion-Clipperton Zone BT AF Lefaible, Nene Macheriotou, Lara Purkiani, Kaveh Haeckel, Matthias Zeppilli, Daniela Pape, Ellen Vanreusel, Ann AS 1:1;2:1;3:2,3;4:2;5:4;6:1;7:1; FF 1:;2:;3:;4:;5:PDG-REM-BEEP-LEP;6:;7:; C1 Marine Biology Research Group, Ghent, Belgium GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany MARUM Centre for Marine Environmental Sciences and Faculty of Geosciences, University of Bremen, Bremen, Germany University Brest, CNRS, Ifremer, UMR6197 Biologie Et Ecologie Des Ecosystèmes Marins Profonds, 29280, Plouzané, France C2 UNIV GHENT, BELGIUM IFM GEOMAR, GERMANY UNIV BREMEN MARUM, GERMANY IFREMER, FRANCE SI BREST SE PDG-REM-BEEP-LEP UM BEEP-LM2E IN WOS Ifremer UMR copubli-europe IF 1.6 TC 0 UR https://archimer.ifremer.fr/doc/00846/95747/103552.pdf LA English DT Article DE ;Deep-sea mining;Polymetallic nodules;Meiofauna;Impact studies;Sediment plume;Numerical modelling AB The deep-sea mining industry is currently at a point where large-sale, commercial polymetallic nodule exploitation is becoming a more realistic scenario. At the same time, certain aspects such as the spatiotemporal scale of impacts, sediment plume dispersion and the disturbance-related biological responses remain highly uncertain. In this paper, findings from a small-scale seabed disturbance experiment in the German contract area (Clarion-Clipperton Zone, CCZ) are described, with a focus on the soft-sediment ecosystem component. Despite the limited spatial scale of the induced disturbance on the seafloor, this experiment allowed us to evaluate how short-term (< 1 month) soft-sediment changes can be assessed based on sediment characteristics (grain size, nutrients and pigments) and metazoan meiofaunal communities (morphological and metabarcoding analyses). Furthermore, we show how benthic measurements can be combined with numerical modelling of sediment transport to enhance our understanding of meiofaunal responses to increased sedimentation levels. The lessons learned within this study highlight the major issues of current deep-sea mining-related ecological research such as deficient baseline knowledge, unrepresentative impact intensity of mining simulations and challenges associated with sampling trade-offs (e.g., replication). PY 2023 PD AUG SO Marine Biodiversity SN 1867-1616 PU Springer Science and Business Media LLC VL 53 IS 4 UT 001024932800001 DI 10.1007/s12526-023-01353-0 ID 95747 ER EF