Biometry, and fatty acid and fatty alcohol composition of the Arctic ctenophore Mertensia ovum from Kongsfjorden
Lipids of the Arctic ctenophore Mertensia ovum, collected from Kongsfjorden (Svalbard) in 2001, were analysed to investigate seasonal variability and fate of dietary lipids. Total lipids, lipid classes and fatty acid and alcohol compositions were determined in animals, which were selected according...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.810340 2023-05-15T14:25:53+02:00 Biometry, and fatty acid and fatty alcohol composition of the Arctic ctenophore Mertensia ovum from Kongsfjorden Graeve, Martin Lundberg, Marte Böer, Marco Kattner, Gerhard Hop, Haakon Falk-Petersen, Stig LATITUDE: 78.971000 * LONGITUDE: 11.680000 * DATE/TIME START: 2001-05-21T00:00:00 * DATE/TIME END: 2001-09-04T00:00:00 2008-04-17 application/zip, 5 datasets https://doi.pangaea.de/10.1594/PANGAEA.810340 https://doi.org/10.1594/PANGAEA.810340 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.810340 https://doi.org/10.1594/PANGAEA.810340 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Graeve, Martin; Lundberg, Marte; Böer, Marco; Kattner, Gerhard; Hop, Haakon; Falk-Petersen, Stig (2008): The fate of dietary lipids in the Arctic ctenophore Mertensia ovum (Fabricius 1780). Marine Biology, 153(4), 643-651, https://doi.org/10.1007/s00227-007-0837-3 DIVER International Polar Year (2007-2008) IPY Kongsfjorden_2001 Kongsfjorden Spitsbergen Arctic Sampling by diver Dataset 2008 ftpangaea https://doi.org/10.1594/PANGAEA.810340 https://doi.org/10.1007/s00227-007-0837-3 2023-01-20T07:32:58Z Lipids of the Arctic ctenophore Mertensia ovum, collected from Kongsfjorden (Svalbard) in 2001, were analysed to investigate seasonal variability and fate of dietary lipids. Total lipids, lipid classes and fatty acid and alcohol compositions were determined in animals, which were selected according to age-group and season. Changes in lipids of age-group 0 animals were followed during growth from spring to autumn. Total lipids increased from May to September. Lipids as percentage of dry mass were lowest in August indicating their use for reproduction. Higher values occurred in September, which may be due to lipid storage for overwintering. Wax esters were the major lipid class accounting for about 50% of total lipids in age-group 0 animals from July and August. Phospholipids were the second largest lipid fraction with up to 46% in this age-group. The principal fatty acids of M. ovum from all age-groups were 22:6(n-3), 20:5(n-3) and 16:0. Wax ester fatty alcohols were dominated by 22:1(n-11) and 20:1(n-9) followed by moderate proportions of 16:0. The unique feature of M. ovum lipids was the high amount of free fatty alcohols originating probably from the dietary wax esters. In May, free alcohols exhibited the highest mean proportion with 14.6% in age-group 0 animals. We present the first data describing a detailed free fatty alcohol composition in zooplankton. This composition was very different from the alcohol composition of M. ovum wax esters because of the predominance of the long-chain monounsaturated 22:1 (n-11) alcohol accounting for almost 100% of total free alcohols in some samples. The detailed lipid composition clearly reflected feeding of M. ovum on the herbivorous calanoid species, Calanus glacialis and C. finmarchicus, the abundant members of the zooplankton community in Kongsfjorden. Other copepod species or prey items seem to be less important for M. ovum. Dataset Arctic Arctic Calanus glacialis International Polar Year IPY Kongsfjord* Kongsfjorden Svalbard Zooplankton Spitsbergen PANGAEA - Data Publisher for Earth & Environmental Science Arctic Svalbard ENVELOPE(11.680000,11.680000,78.971000,78.971000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
DIVER International Polar Year (2007-2008) IPY Kongsfjorden_2001 Kongsfjorden Spitsbergen Arctic Sampling by diver |
spellingShingle |
DIVER International Polar Year (2007-2008) IPY Kongsfjorden_2001 Kongsfjorden Spitsbergen Arctic Sampling by diver Graeve, Martin Lundberg, Marte Böer, Marco Kattner, Gerhard Hop, Haakon Falk-Petersen, Stig Biometry, and fatty acid and fatty alcohol composition of the Arctic ctenophore Mertensia ovum from Kongsfjorden |
topic_facet |
DIVER International Polar Year (2007-2008) IPY Kongsfjorden_2001 Kongsfjorden Spitsbergen Arctic Sampling by diver |
description |
Lipids of the Arctic ctenophore Mertensia ovum, collected from Kongsfjorden (Svalbard) in 2001, were analysed to investigate seasonal variability and fate of dietary lipids. Total lipids, lipid classes and fatty acid and alcohol compositions were determined in animals, which were selected according to age-group and season. Changes in lipids of age-group 0 animals were followed during growth from spring to autumn. Total lipids increased from May to September. Lipids as percentage of dry mass were lowest in August indicating their use for reproduction. Higher values occurred in September, which may be due to lipid storage for overwintering. Wax esters were the major lipid class accounting for about 50% of total lipids in age-group 0 animals from July and August. Phospholipids were the second largest lipid fraction with up to 46% in this age-group. The principal fatty acids of M. ovum from all age-groups were 22:6(n-3), 20:5(n-3) and 16:0. Wax ester fatty alcohols were dominated by 22:1(n-11) and 20:1(n-9) followed by moderate proportions of 16:0. The unique feature of M. ovum lipids was the high amount of free fatty alcohols originating probably from the dietary wax esters. In May, free alcohols exhibited the highest mean proportion with 14.6% in age-group 0 animals. We present the first data describing a detailed free fatty alcohol composition in zooplankton. This composition was very different from the alcohol composition of M. ovum wax esters because of the predominance of the long-chain monounsaturated 22:1 (n-11) alcohol accounting for almost 100% of total free alcohols in some samples. The detailed lipid composition clearly reflected feeding of M. ovum on the herbivorous calanoid species, Calanus glacialis and C. finmarchicus, the abundant members of the zooplankton community in Kongsfjorden. Other copepod species or prey items seem to be less important for M. ovum. |
format |
Dataset |
author |
Graeve, Martin Lundberg, Marte Böer, Marco Kattner, Gerhard Hop, Haakon Falk-Petersen, Stig |
author_facet |
Graeve, Martin Lundberg, Marte Böer, Marco Kattner, Gerhard Hop, Haakon Falk-Petersen, Stig |
author_sort |
Graeve, Martin |
title |
Biometry, and fatty acid and fatty alcohol composition of the Arctic ctenophore Mertensia ovum from Kongsfjorden |
title_short |
Biometry, and fatty acid and fatty alcohol composition of the Arctic ctenophore Mertensia ovum from Kongsfjorden |
title_full |
Biometry, and fatty acid and fatty alcohol composition of the Arctic ctenophore Mertensia ovum from Kongsfjorden |
title_fullStr |
Biometry, and fatty acid and fatty alcohol composition of the Arctic ctenophore Mertensia ovum from Kongsfjorden |
title_full_unstemmed |
Biometry, and fatty acid and fatty alcohol composition of the Arctic ctenophore Mertensia ovum from Kongsfjorden |
title_sort |
biometry, and fatty acid and fatty alcohol composition of the arctic ctenophore mertensia ovum from kongsfjorden |
publisher |
PANGAEA |
publishDate |
2008 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.810340 https://doi.org/10.1594/PANGAEA.810340 |
op_coverage |
LATITUDE: 78.971000 * LONGITUDE: 11.680000 * DATE/TIME START: 2001-05-21T00:00:00 * DATE/TIME END: 2001-09-04T00:00:00 |
long_lat |
ENVELOPE(11.680000,11.680000,78.971000,78.971000) |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Arctic Arctic Calanus glacialis International Polar Year IPY Kongsfjord* Kongsfjorden Svalbard Zooplankton Spitsbergen |
genre_facet |
Arctic Arctic Calanus glacialis International Polar Year IPY Kongsfjord* Kongsfjorden Svalbard Zooplankton Spitsbergen |
op_source |
Supplement to: Graeve, Martin; Lundberg, Marte; Böer, Marco; Kattner, Gerhard; Hop, Haakon; Falk-Petersen, Stig (2008): The fate of dietary lipids in the Arctic ctenophore Mertensia ovum (Fabricius 1780). Marine Biology, 153(4), 643-651, https://doi.org/10.1007/s00227-007-0837-3 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.810340 https://doi.org/10.1594/PANGAEA.810340 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.810340 https://doi.org/10.1007/s00227-007-0837-3 |
_version_ |
1766298373201068032 |