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Jérôme OLLIER

Broad distribution of spider-shaped lebensspuren along the Australian continental margi... - 0 views

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distribution géographique forme araignée trace de vie Océanie Australie marge continentale alimentation enfouissement fonds marins épibenthos animal faune endofaune sédiment bioturbation trace océan Indien Parc Marin de Gascoyne observation mer profonde

shared by Jérôme OLLIER on 15 Dec 22 - No Cached
  • Jérôme OLLIER on 15 Dec 22
     
    During feeding and burrowing, many epibenthic and infaunal animals bioturbate sediments and form a range of traces called lebensspuren (German for 'life traces'), defined as any type of sedimentary structure produced by a living organism. During a 2020 survey along western Australia in the Gascoyne Marine Park, a distinct trace was observed several times, identical to the 'spider trace' observed in a 2007 survey along eastern Australia, over 4000 km away. The purpose of this brief note is to document and describe the occurrence of this unique and distinctive type of lebensspuren and to discuss ways in which similar observations may be effectively shared to increase our understanding of deep-sea biology.
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