High-Antarctic regular sea urchins – the role of depth and feeding in niche separation

  title={High-Antarctic regular sea urchins – the role of depth and feeding in niche separation},
  author={Ute Jacob and S. Terpstra and Thomas Brey},
  journal={Polar Biology},
Regular sea urchins of the families Cidaridae and Echinidae are widespread and sympatrically occurring epibenthic species in Antarctic waters. Food preference and water depth distribution of the five most abundant species (Ctenocidaris gigantea, C. spinosa, Notocidaris mortenseni, Sterechinus antarcticus, S. neumayeri) were analysed based on trawl and photograph samples. Both diet and water depth contribute to niche separation among these species. All sea urchins consume bryozoans and sediment… CONTINUE READING
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