The role of sympagic meiofauna in Arctic and Antarctic sea-ice food webs
Both Antarctic and Arctic sympagic meiofauna investigated in this study included taxa new to sea ice. Diversity, abundance and biomass of metazoan meiofauna were significantly higher in a perennially than in a seasonally ice-covered Antarctic region. Brackish meltponds on Arctic sea ice hosted vario...
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ftoceanrep:oai:oceanrep.geomar.de:14719 2024-09-15T17:48:00+00:00 The role of sympagic meiofauna in Arctic and Antarctic sea-ice food webs Kramer, Maike 2011 text https://oceanrep.geomar.de/id/eprint/14719/ https://oceanrep.geomar.de/id/eprint/14719/1/diss_kramer_ipoe_2010.pdf https://macau.uni-kiel.de/receive/diss_mods_00006353 en eng https://oceanrep.geomar.de/id/eprint/14719/1/diss_kramer_ipoe_2010.pdf Kramer, M. (2011) The role of sympagic meiofauna in Arctic and Antarctic sea-ice food webs. Open Access (PhD/ Doctoral thesis), Christian-Albrechts-Universität, Kiel, Germany, 157, XLI pp. UrhG info:eu-repo/semantics/openAccess Thesis NonPeerReviewed 2011 ftoceanrep 2024-08-19T23:40:11Z Both Antarctic and Arctic sympagic meiofauna investigated in this study included taxa new to sea ice. Diversity, abundance and biomass of metazoan meiofauna were significantly higher in a perennially than in a seasonally ice-covered Antarctic region. Brackish meltponds on Arctic sea ice hosted various proto- and metazoans. Stable isotope and fatty acid analyses combined with grazing and predation experiments showed that most metazoan meiofauna prey on ciliates and some even on metazoans. Many of them supplement their diets with algae, bacteria and detritus. A few meiofauna taxa are mainly herbivorous, but can additionally prey on ciliates or nauplii. Ingestion rates were influenced by food density (functional response) and predator density (competition). Grazing rates and the derived grazing impact of the meiofauna community were generally low. Predation rates, in contrast, were very high in some taxa, and the derived predation impact of the meiofauna community was accordingly high. Thesis Antarc* Antarctic Arctic Sea ice OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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Open Polar |
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OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
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ftoceanrep |
language |
English |
description |
Both Antarctic and Arctic sympagic meiofauna investigated in this study included taxa new to sea ice. Diversity, abundance and biomass of metazoan meiofauna were significantly higher in a perennially than in a seasonally ice-covered Antarctic region. Brackish meltponds on Arctic sea ice hosted various proto- and metazoans. Stable isotope and fatty acid analyses combined with grazing and predation experiments showed that most metazoan meiofauna prey on ciliates and some even on metazoans. Many of them supplement their diets with algae, bacteria and detritus. A few meiofauna taxa are mainly herbivorous, but can additionally prey on ciliates or nauplii. Ingestion rates were influenced by food density (functional response) and predator density (competition). Grazing rates and the derived grazing impact of the meiofauna community were generally low. Predation rates, in contrast, were very high in some taxa, and the derived predation impact of the meiofauna community was accordingly high. |
format |
Thesis |
author |
Kramer, Maike |
spellingShingle |
Kramer, Maike The role of sympagic meiofauna in Arctic and Antarctic sea-ice food webs |
author_facet |
Kramer, Maike |
author_sort |
Kramer, Maike |
title |
The role of sympagic meiofauna in Arctic and Antarctic sea-ice food webs |
title_short |
The role of sympagic meiofauna in Arctic and Antarctic sea-ice food webs |
title_full |
The role of sympagic meiofauna in Arctic and Antarctic sea-ice food webs |
title_fullStr |
The role of sympagic meiofauna in Arctic and Antarctic sea-ice food webs |
title_full_unstemmed |
The role of sympagic meiofauna in Arctic and Antarctic sea-ice food webs |
title_sort |
role of sympagic meiofauna in arctic and antarctic sea-ice food webs |
publishDate |
2011 |
url |
https://oceanrep.geomar.de/id/eprint/14719/ https://oceanrep.geomar.de/id/eprint/14719/1/diss_kramer_ipoe_2010.pdf https://macau.uni-kiel.de/receive/diss_mods_00006353 |
genre |
Antarc* Antarctic Arctic Sea ice |
genre_facet |
Antarc* Antarctic Arctic Sea ice |
op_relation |
https://oceanrep.geomar.de/id/eprint/14719/1/diss_kramer_ipoe_2010.pdf Kramer, M. (2011) The role of sympagic meiofauna in Arctic and Antarctic sea-ice food webs. Open Access (PhD/ Doctoral thesis), Christian-Albrechts-Universität, Kiel, Germany, 157, XLI pp. |
op_rights |
UrhG info:eu-repo/semantics/openAccess |
_version_ |
1810288653694402560 |