Remarks to macrobenthic investigation of the Siberian shelf seas and deep Arctic basins - PowerPoint PPT Presentation

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Remarks to macrobenthic investigation of the Siberian shelf seas and deep Arctic basins PowerPoint Presentation
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Remarks to macrobenthic investigation of the Siberian shelf seas and deep Arctic basins

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  1. Remarks to macrobenthic investigation of the Siberian shelf seas and deep Arctic basins Hendrik Deubel, Michael Klages, Eike Rachor Alfred Wegener Institute, Bremerhaven, Germany

  2. Expeditions Arctic Ocean 1996 IB Oden ARK XIV/1a 1998 RV Polarstern ARK VIII/3 1991 RV Polarstern ARK XIII/2 1997 RV Polarstern ARK IXX/1a 2003 RV Polarstern ARK VIII/2 1991 RV Polarstern Kara Sea Expedition 1993 RV Dmitri Mendeleyev ARK XI/1 1995 RV Polarstern ARK IX/4 1993 RV Polarstern SIRRO 1997 - 2002 RV Akademik Boris Pretov

  3. General objectives • Analysis of the structure, species composition, abundance and biomass of biological communities. • Investigation for food preferences of character species. How much organic carbon is utilized by the macrozoobenthos per time unit? • How important is the input of freshwater for the biological communities? • Biochemical investigations on the lipid metabolism. • Model for energy flow and trophic relations between the pelagic and benthic systems.

  4. Macrobenthic biomass[AFDW] Kara Sea (southern) Laptev Sea (northern) Arctic Ocean (central) Polychaeta Mollusca Crustacea Echinodermata others

  5. Distribution of the macrofauna along the continental slope (≈147°E) species number Depth [m] others Sipunculida Cnidaria Echinodermata abundance / m2 Depth [m] Crustacea Mollusca Polychaeta depth Depth [m] biomass [AFDW g/m2]