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
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 serie...
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ftoceanrep:oai:oceanrep.geomar.de:40401 2023-05-15T16:18:04+02:00 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 Busch, Kathrin Bauerfeind, Eduard Nöthig, Eva-Maria 2015 text https://oceanrep.geomar.de/id/eprint/40401/ https://oceanrep.geomar.de/id/eprint/40401/1/10.1007_s00300-015-1644-9.pdf https://doi.org/10.1007/s00300-015-1644-9 en eng Springer https://oceanrep.geomar.de/id/eprint/40401/1/10.1007_s00300-015-1644-9.pdf Busch, K. , Bauerfeind, E. and Nöthig, E. M. (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). pp. 845-859. DOI 10.1007/s00300-015-1644-9 <https://doi.org/10.1007/s00300-015-1644-9>. doi:10.1007/s00300-015-1644-9 info:eu-repo/semantics/restrictedAccess Article PeerReviewed 2015 ftoceanrep https://doi.org/10.1007/s00300-015-1644-9 2023-04-07T15:36:45Z 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. Article in Journal/Newspaper Fram Strait Limacina helicina Polar Biology Subarctic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Polar Biology 38 6 845 859 |
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Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Busch, Kathrin Bauerfeind, Eduard Nöthig, Eva-Maria |
spellingShingle |
Busch, Kathrin Bauerfeind, Eduard Nöthig, Eva-Maria 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 |
author_facet |
Busch, Kathrin Bauerfeind, Eduard Nöthig, Eva-Maria |
author_sort |
Busch, Kathrin |
title |
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 |
title_short |
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 |
title_full |
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 |
title_fullStr |
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 |
title_full_unstemmed |
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 |
title_sort |
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 |
publisher |
Springer |
publishDate |
2015 |
url |
https://oceanrep.geomar.de/id/eprint/40401/ https://oceanrep.geomar.de/id/eprint/40401/1/10.1007_s00300-015-1644-9.pdf https://doi.org/10.1007/s00300-015-1644-9 |
genre |
Fram Strait Limacina helicina Polar Biology Subarctic |
genre_facet |
Fram Strait Limacina helicina Polar Biology Subarctic |
op_relation |
https://oceanrep.geomar.de/id/eprint/40401/1/10.1007_s00300-015-1644-9.pdf Busch, K. , Bauerfeind, E. and Nöthig, E. M. (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). pp. 845-859. DOI 10.1007/s00300-015-1644-9 <https://doi.org/10.1007/s00300-015-1644-9>. doi:10.1007/s00300-015-1644-9 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1007/s00300-015-1644-9 |
container_title |
Polar Biology |
container_volume |
38 |
container_issue |
6 |
container_start_page |
845 |
op_container_end_page |
859 |
_version_ |
1766004151612866560 |