Abyssal plain faunal carbon flows remain depressed 26 years after a simulated deep-sea mining disturbance
Tanja Stratmann,Lidia Lins,Autun Purser,Yann Marcon,Clara F. Rodrigues,Ascensão Ravara,Marina R. Cunha,Erik Simon-Lledó,Daniel O. B. Jones,Andrew K. Sweetman,Kevin Köser,and Dick van Oevelen
NIOZ Royal Netherlands Institute for Sea Research, Department of
Estuarine and Delta Systems, and Utrecht University, P.O. Box 140, 4400 AC
Yerseke, the Netherlands
Departamento de Biologia & Centro de Estudos do Ambiente e
do Mar (CESAM), Departamento de Biologia, Universidade de Aveiro, Campus de
Santiago, 3810-193 Aveiro, Portugal
Ascensão Ravara
Departamento de Biologia & Centro de Estudos do Ambiente e
do Mar (CESAM), Departamento de Biologia, Universidade de Aveiro, Campus de
Santiago, 3810-193 Aveiro, Portugal
Departamento de Biologia & Centro de Estudos do Ambiente e
do Mar (CESAM), Departamento de Biologia, Universidade de Aveiro, Campus de
Santiago, 3810-193 Aveiro, Portugal
National Oceanography Centre, University of Southampton Waterfront
Campus, European Way, Southampton SO14 3ZH, UK
Andrew K. Sweetman
Marine Benthic Ecology, Biogeochemistry and In-situ Technology
Research Group, The Lyell Centre for Earth and Marine Science and
Technology, Heriot-Watt University, Edinburgh EH14 4AS, UK
Kevin Köser
GEOMAR Helmholtz Centre for Ocean Research, FE Marine Geosystems,
Wischhofstr 1–3, 24148 Kiel, Germany
Dick van Oevelen
NIOZ Royal Netherlands Institute for Sea Research, Department of
Estuarine and Delta Systems, and Utrecht University, P.O. Box 140, 4400 AC
Yerseke, the Netherlands
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Extraction of polymetallic nodules will have negative impacts on the deep-sea ecosystem, but it is not known whether the ecosystem is able to recover from them. Therefore, in 1989 a sediment disturbance experiment was conducted in the Peru Basin to mimic deep-sea mining. Subsequently, the experimental site was re-visited 5 times to monitor the recovery of fauna. We developed food-web models for all 5 time steps and found that, even after 26 years, carbon flow in the system differs significantly.
Extraction of polymetallic nodules will have negative impacts on the deep-sea ecosystem, but it...
