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  • Van Denderen 2019 Baltic

    Llawysgrif awdur wedi’i dderbyn, 1 MB, dogfen-PDF

    Embargo yn dod i ben: 31/12/99

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  • P.D. van Denderen
    Centre for Ocean Life - Danish Technical University
  • S.G. Bolam
    Centre for Environment, Fisheries and Aquaculture Science
  • R. Friedland
    Leibniz-Institut für Ostseeforschung Warnemünde, Rostock
  • Jan Geert Hiddink
  • K. Noren
    Swedish University of Agricultural Sciences
  • A.D. Rijnsdrop
    Wageningen University
  • M. Skold
    Swedish University of Agricultural Sciences
  • A. Tornroos
    Åbo Akademi University, Turku
  • E.A. Virtanen
    Finnish Environment Institute (SYKE), Helsinki
  • S. Valanko
    International Council for the Exploration of the Sea, Copenhagen
Bottom trawling disturbance and hypoxia are affecting marine benthic habitats worldwide. We present 22 an approach to predict their effects on benthic communities, and use the approach to estimate the state, 23 the biomass relative to carrying capacity, of the Baltic Sea at the local, habitat and regional scale. 24 Responses to both pressures are expected to depend on the longevity of fauna, which is predicted from 25 benthic data from 1558 locations. We find that communities in low-salinity regions mostly consist of 26 short-lived species, which are, in our model, more resilient than those of the saline areas. The model 27 predicts that in 14% of the Baltic Sea region benthic biomass is reduced by at least 50%, whereas an 28 additional 8% of the region has reductions of 10-50%. The effects of hypoxia occur over larger spatial 29 scales and lead to a low state of especially deep habitats. The approach is based on a simple 30 characterization of the benthic community, which comes with high uncertainty, but allows for the 31 identification of benthic habitats that are at greatest risk and prioritization of management actions at the 32 regional scale. This information supports the development of sustainable approaches to manage impact 33 of human activities on benthic ecosystems.
Iaith wreiddiolSaesneg
CyfnodolynICES Journal of Marine Science
StatwsWedi ei Dderbyn / Yn y wasg - 26 Hyd 2019
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