Ulrike Hanz, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research, Benthic Ecology, Bremerhaven, Germany, Jürgen Laudien, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Benthic Ecology, Bremerhaven, Germany, Erik Wurz, Wageningen University and Research Center, Wageningen, Netherlands, Andreas Schmider Martínez, Austral University of Chile, Puerto Montt, Chile, Ian Hawes, University of Waikato, Hamilton, New Zealand and Claudio Richter, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany