Sea-ice communities: structure and composition in Baltic, Antarctic and Arctic seas
Sea ice is an important structural component of polar marine ecosystems but also at lower latitude seas like e.g. the northern Baltic Sea. This study summarises observations on biological, chemical and physical characteristics of sea ice and under-ice water obtained during three expeditions to the B...
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ftunivkiel:oai:macau.uni-kiel.de:diss_mods_00000639 2024-06-23T07:46:49+00:00 Sea-ice communities: structure and composition in Baltic, Antarctic and Arctic seas Meiners, Klaus Spindler, M. Hoppe, H.-G. 2002 https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-6393 https://macau.uni-kiel.de/receive/diss_mods_00000639 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/dissertation_derivate_00000639/d639.pdf eng eng https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-6393 https://macau.uni-kiel.de/receive/diss_mods_00000639 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/dissertation_derivate_00000639/d639.pdf https://rightsstatements.org/page/InC/1.0/ info:eu-repo/semantics/openAccess ddc:570 thesis Ostsee Polargebiete Meereis Biozönose TEP Stoffhaushalt dissertation Text doc-type:PhDThesis 2002 ftunivkiel 2024-06-12T14:21:31Z Sea ice is an important structural component of polar marine ecosystems but also at lower latitude seas like e.g. the northern Baltic Sea. This study summarises observations on biological, chemical and physical characteristics of sea ice and under-ice water obtained during three expeditions to the Baltic Sea, the Fram Strait area (Arctic) and the Bellingshausen Sea (Antarctica). The study aimed at a better understanding and quantification of different components of the sea ice related food web. The seasonal Baltic sea ice is least studied and therefore the work in this area focused on an inventory determination of the abundance and biomass composition of the sympagic (=ice-associated) community of the Bothnian Bay and Bothnian Sea as well as on the importance of abiotic and biotic factors in the control of ice algal accumulation. The work on the better explored polar sea ice focused on the abundance, distribution and characteristics of transparent exopolymer particles (TEP) in Arctic and Antarctic sea ice. TEP are a recently described class of exopolymeric particles, which are formed abiotically and biotically from polysaccharid-rich precursors. High amounts of TEP-precursors are released by bacteria and algae especially in response to environmental stress. In the pelagic realm TEP are important in the aggregation of diatom blooms, provide the matrix of macroaggregates and serve as substrate and habitat for attached bacteria. High concentrations of TEP have been recently described for Arctic sea ice and may have an important impact on carbon dynamics in sea-ice systems. The present study related TEP concentrations to biotic and abiotic sea ice parameters, potential modes of TEP formation were elucidated and the importance of TEP for the sea-ice habitat was discussed. Doctoral or Postdoctoral Thesis Antarc* Antarctic Antarctica Arctic Bellingshausen Sea Fram Strait Sea ice MACAU: Open Access Repository of Kiel University Antarctic Arctic Bellingshausen Sea |
institution |
Open Polar |
collection |
MACAU: Open Access Repository of Kiel University |
op_collection_id |
ftunivkiel |
language |
English |
topic |
ddc:570 thesis Ostsee Polargebiete Meereis Biozönose TEP Stoffhaushalt |
spellingShingle |
ddc:570 thesis Ostsee Polargebiete Meereis Biozönose TEP Stoffhaushalt Meiners, Klaus Sea-ice communities: structure and composition in Baltic, Antarctic and Arctic seas |
topic_facet |
ddc:570 thesis Ostsee Polargebiete Meereis Biozönose TEP Stoffhaushalt |
description |
Sea ice is an important structural component of polar marine ecosystems but also at lower latitude seas like e.g. the northern Baltic Sea. This study summarises observations on biological, chemical and physical characteristics of sea ice and under-ice water obtained during three expeditions to the Baltic Sea, the Fram Strait area (Arctic) and the Bellingshausen Sea (Antarctica). The study aimed at a better understanding and quantification of different components of the sea ice related food web. The seasonal Baltic sea ice is least studied and therefore the work in this area focused on an inventory determination of the abundance and biomass composition of the sympagic (=ice-associated) community of the Bothnian Bay and Bothnian Sea as well as on the importance of abiotic and biotic factors in the control of ice algal accumulation. The work on the better explored polar sea ice focused on the abundance, distribution and characteristics of transparent exopolymer particles (TEP) in Arctic and Antarctic sea ice. TEP are a recently described class of exopolymeric particles, which are formed abiotically and biotically from polysaccharid-rich precursors. High amounts of TEP-precursors are released by bacteria and algae especially in response to environmental stress. In the pelagic realm TEP are important in the aggregation of diatom blooms, provide the matrix of macroaggregates and serve as substrate and habitat for attached bacteria. High concentrations of TEP have been recently described for Arctic sea ice and may have an important impact on carbon dynamics in sea-ice systems. The present study related TEP concentrations to biotic and abiotic sea ice parameters, potential modes of TEP formation were elucidated and the importance of TEP for the sea-ice habitat was discussed. |
author2 |
Spindler, M. Hoppe, H.-G. |
format |
Doctoral or Postdoctoral Thesis |
author |
Meiners, Klaus |
author_facet |
Meiners, Klaus |
author_sort |
Meiners, Klaus |
title |
Sea-ice communities: structure and composition in Baltic, Antarctic and Arctic seas |
title_short |
Sea-ice communities: structure and composition in Baltic, Antarctic and Arctic seas |
title_full |
Sea-ice communities: structure and composition in Baltic, Antarctic and Arctic seas |
title_fullStr |
Sea-ice communities: structure and composition in Baltic, Antarctic and Arctic seas |
title_full_unstemmed |
Sea-ice communities: structure and composition in Baltic, Antarctic and Arctic seas |
title_sort |
sea-ice communities: structure and composition in baltic, antarctic and arctic seas |
publishDate |
2002 |
url |
https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-6393 https://macau.uni-kiel.de/receive/diss_mods_00000639 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/dissertation_derivate_00000639/d639.pdf |
geographic |
Antarctic Arctic Bellingshausen Sea |
geographic_facet |
Antarctic Arctic Bellingshausen Sea |
genre |
Antarc* Antarctic Antarctica Arctic Bellingshausen Sea Fram Strait Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Arctic Bellingshausen Sea Fram Strait Sea ice |
op_relation |
https://nbn-resolving.org/urn:nbn:de:gbv:8-diss-6393 https://macau.uni-kiel.de/receive/diss_mods_00000639 https://macau.uni-kiel.de/servlets/MCRFileNodeServlet/dissertation_derivate_00000639/d639.pdf |
op_rights |
https://rightsstatements.org/page/InC/1.0/ info:eu-repo/semantics/openAccess |
_version_ |
1802648507089158144 |