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Busch, Kathrin; Bauerfeind, Eduard; Nöthig, Eva-Maria (2015): Pteropod sedimentation at AWI HAUSGARTEN at two different sites from 2004 to 2011. PANGAEA, https://doi.org/10.1594/PANGAEA.845918, Supplement to: Busch, K et al. (2015): Pteropod sedimentation patterns in different water depths observed with moored sediment traps over a 4-year period at the LTER station HAUSGARTEN in eastern Fram Strait. Polar Biology, 38(6), 845-859, https://doi.org/10.1007/s00300-015-1644-9

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Abstract:
Pteropods are important organisms in high-latitude ecosystems, and they are expected to severely suffer from climate change in the near future. In this study, sedimentation patterns of two pteropod species, the polar Limacina helicina and the subarctic boreal L. retroversa, are presented. Time series data received by moored sediment traps at the Long-Term Ecological Research (LTER) Observatory HAUSGARTEN in eastern Fram Strait were analyzed during the years 2008 to 2012. Results were derived from four different deployment depths (~200, 1,250, 2,400, and 2,550 m) at two different sites (79° N, 04°20' E; 79°43' N, 04°30' E). A species-specific sedimentation pattern was present at all depths and at both sites showing maximal flux rates during September/October for L. helicina and in November/December for L. retroversa. The polar L. helicina was outnumbered by L. retroversa (55-99 %) at both positions and at all depths supporting the recently observed trend toward the dominance of the subarctic boreal species. The largest decrease in pteropod abundance occurred within the mesopelagic zone (~200-1,250 m), indicating loss via microbial degradation and grazing. Pteropod carbonate (aragonite) amounted up to ~75 % of the total carbonate flux at 200 m and 2-13 % of the aragonite found in the shallow traps arrived at the deep sediment traps (~160 m above the seafloor), revealing the significance of pteropods in carbonate export at Fram Strait. Our results emphasize the relevance and the need for continuation of long-term studies to detect and trace changes in pteropod abundances and community composition and thus in the vertical transport of aragonite.
Related to:
Bauerfeind, Eduard; Nöthig, Eva-Maria; Beszczynska, Agnieszka; Fahl, Kirsten; Kaleschke, Lars; Kreker, Kathrin; Klages, Michael; Soltwedel, Thomas; Lorenzen, Christiane; Wegner, Jan (2009): Biogenic particle and biomarker flux from a mooring time-series at AWI HAUSGARTEN. PANGAEA, https://doi.org/10.1594/PANGAEA.714845
Bauerfeind, Eduard; Nöthig, Eva-Maria; Beszczynska, Agnieszka; Fahl, Kirsten; Kaleschke, Lars; Kreker, Kathrin; Klages, Michael; Soltwedel, Thomas; Lorenzen, Christiane; Wegner, Jan (2009): Particle sedimentation patterns in the eastern Fram Strait during 2000-2005: Results from the Arctic long-term observatory HAUSGARTEN. Deep Sea Research Part I: Oceanographic Research Papers, 56(9), 1471-1487, https://doi.org/10.1016/j.dsr.2009.04.011
Coverage:
Median Latitude: 79.374858 * Median Longitude: 4.499942 * South-bound Latitude: 79.078000 * West-bound Longitude: 4.092000 * North-bound Latitude: 79.739300 * East-bound Longitude: 5.164500
Date/Time Start: 2004-07-15T00:00:00 * Date/Time End: 2011-06-30T00:00:00
Size:
12 datasets

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Datasets listed in this publication series

  1. Busch, K; Bauerfeind, E; Nöthig, E-M (2015): Pteropod sedimentation at AWI HAUSGARTEN northern station HGN in 2004/2005 (Trap FEVI8). https://doi.org/10.1594/PANGAEA.845904
  2. Busch, K; Bauerfeind, E; Nöthig, E-M (2015): Pteropod sedimentation at AWI HAUSGARTEN northern station HGN in 2006/2007 (Trap FEVI11). https://doi.org/10.1594/PANGAEA.845905
  3. Busch, K; Bauerfeind, E; Nöthig, E-M (2015): Pteropod sedimentation at AWI HAUSGARTEN northern station HGN in 2006/2007 (Trap FEVI14). https://doi.org/10.1594/PANGAEA.845906
  4. Busch, K; Bauerfeind, E; Nöthig, E-M (2015): Pteropod sedimentation at AWI HAUSGARTEN northern station HGN in 2007/2008 (Trap FEVI17). https://doi.org/10.1594/PANGAEA.845907
  5. Busch, K; Bauerfeind, E; Nöthig, E-M (2015): Pteropod sedimentation at AWI HAUSGARTEN northern station HGN in 2008/2009 (Trap FEVI19). https://doi.org/10.1594/PANGAEA.845908
  6. Busch, K; Bauerfeind, E; Nöthig, E-M (2015): Pteropod sedimentation at AWI HAUSGARTEN northern station HGN in 2010/2011 (Trap FEVI21). https://doi.org/10.1594/PANGAEA.845909
  7. Busch, K; Bauerfeind, E; Nöthig, E-M (2015): Pteropod sedimentation at AWI HAUSGARTEN obtained by a lander system in 2004/2005. https://doi.org/10.1594/PANGAEA.845912
  8. Busch, K; Bauerfeind, E; Nöthig, E-M (2015): Pteropod sedimentation at AWI HAUSGARTEN obtained by a lander system in 2005/2006. https://doi.org/10.1594/PANGAEA.845913
  9. Busch, K; Bauerfeind, E; Nöthig, E-M (2015): Pteropod sedimentation at AWI HAUSGARTEN obtained by a lander system in 2007/2008. https://doi.org/10.1594/PANGAEA.845914
  10. Busch, K; Bauerfeind, E; Nöthig, E-M (2015): Pteropod sedimentation at AWI HAUSGARTEN obtained by a lander system in 2008/2009. https://doi.org/10.1594/PANGAEA.845915
  11. Busch, K; Bauerfeind, E; Nöthig, E-M (2015): Pteropod sedimentation at AWI HAUSGARTEN obtained by a lander system in 2009/2010. https://doi.org/10.1594/PANGAEA.845916
  12. Busch, K; Bauerfeind, E; Nöthig, E-M (2015): Pteropod sedimentation at AWI HAUSGARTEN obtained by a lander system in 2010/2011. https://doi.org/10.1594/PANGAEA.845917