Environmental constraints on the lipid composition and metabolism of euphausiids: the case of Euphausia superbaand Meganyctiphanes norvegica
Antarctic (Euphausia superba) and northern krill (Meganyctiphanes norvegica) are characterised by large-scale spatial distributions. Euphausia superba is limited to the Southern Ocean, while M. norvegica is present from the Arctic Ocean to the Mediterranean Sea. Euphausia superba structural lipids s...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Online Access: | http://dx.doi.org/10.1139/f00-181 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-181 |
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crcansciencepubl:10.1139/f00-181 2024-06-23T07:46:14+00:00 Environmental constraints on the lipid composition and metabolism of euphausiids: the case of Euphausia superbaand Meganyctiphanes norvegica Mayzaud, P Albessard, E Virtue, P Boutoute, M 2000 http://dx.doi.org/10.1139/f00-181 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-181 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 57, issue S3, page 91-103 ISSN 0706-652X 1205-7533 journal-article 2000 crcansciencepubl https://doi.org/10.1139/f00-181 2024-06-13T04:10:50Z Antarctic (Euphausia superba) and northern krill (Meganyctiphanes norvegica) are characterised by large-scale spatial distributions. Euphausia superba is limited to the Southern Ocean, while M. norvegica is present from the Arctic Ocean to the Mediterranean Sea. Euphausia superba structural lipids showed little mesoscale variability. Specific differences between phosphatidylcholine and phosphatidylethanolamine fatty acid composition exceeded variability related to sampling stations. On a larger scale (Southern Ocean), fatty acid composition of both total polar lipids and phosphatidylcholine confirmed the reduced level of regional variability. Similar comparisons between female M. norvegica collected at two extreme sites in terms of temperature regime (Kattegat and Ligurian Sea) during two seasons (spring-summer and fall-winter) suggested a more complex picture. Levels of phosphatidylethanolamine, lysophosphatidylcholine, and diphosphatidylglycerol showed significant differences between sites. During spring- summer, a lower content of phosphatidylethanolamine and lysophosphatidylcholine was observed for the Ligurian Sea population. Fatty acid composition of total polar lipids was significantly different at both sites. Comparisons between spring-summer populations at both sites showed higher percentages of 22:6n-3 and a lower content in saturated and monoenoic acids for the Ligurian Sea, suggesting some degree of adaptation to temperature regime. Article in Journal/Newspaper Antarc* Antarctic Arctic Arctic Ocean Euphausia superba Meganyctiphanes norvegica Northern krill Southern Ocean Canadian Science Publishing Antarctic Arctic Arctic Ocean Kattegat ENVELOPE(9.692,9.692,63.563,63.563) Southern Ocean Canadian Journal of Fisheries and Aquatic Sciences 57 S3 91 103 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
Antarctic (Euphausia superba) and northern krill (Meganyctiphanes norvegica) are characterised by large-scale spatial distributions. Euphausia superba is limited to the Southern Ocean, while M. norvegica is present from the Arctic Ocean to the Mediterranean Sea. Euphausia superba structural lipids showed little mesoscale variability. Specific differences between phosphatidylcholine and phosphatidylethanolamine fatty acid composition exceeded variability related to sampling stations. On a larger scale (Southern Ocean), fatty acid composition of both total polar lipids and phosphatidylcholine confirmed the reduced level of regional variability. Similar comparisons between female M. norvegica collected at two extreme sites in terms of temperature regime (Kattegat and Ligurian Sea) during two seasons (spring-summer and fall-winter) suggested a more complex picture. Levels of phosphatidylethanolamine, lysophosphatidylcholine, and diphosphatidylglycerol showed significant differences between sites. During spring- summer, a lower content of phosphatidylethanolamine and lysophosphatidylcholine was observed for the Ligurian Sea population. Fatty acid composition of total polar lipids was significantly different at both sites. Comparisons between spring-summer populations at both sites showed higher percentages of 22:6n-3 and a lower content in saturated and monoenoic acids for the Ligurian Sea, suggesting some degree of adaptation to temperature regime. |
format |
Article in Journal/Newspaper |
author |
Mayzaud, P Albessard, E Virtue, P Boutoute, M |
spellingShingle |
Mayzaud, P Albessard, E Virtue, P Boutoute, M Environmental constraints on the lipid composition and metabolism of euphausiids: the case of Euphausia superbaand Meganyctiphanes norvegica |
author_facet |
Mayzaud, P Albessard, E Virtue, P Boutoute, M |
author_sort |
Mayzaud, P |
title |
Environmental constraints on the lipid composition and metabolism of euphausiids: the case of Euphausia superbaand Meganyctiphanes norvegica |
title_short |
Environmental constraints on the lipid composition and metabolism of euphausiids: the case of Euphausia superbaand Meganyctiphanes norvegica |
title_full |
Environmental constraints on the lipid composition and metabolism of euphausiids: the case of Euphausia superbaand Meganyctiphanes norvegica |
title_fullStr |
Environmental constraints on the lipid composition and metabolism of euphausiids: the case of Euphausia superbaand Meganyctiphanes norvegica |
title_full_unstemmed |
Environmental constraints on the lipid composition and metabolism of euphausiids: the case of Euphausia superbaand Meganyctiphanes norvegica |
title_sort |
environmental constraints on the lipid composition and metabolism of euphausiids: the case of euphausia superbaand meganyctiphanes norvegica |
publisher |
Canadian Science Publishing |
publishDate |
2000 |
url |
http://dx.doi.org/10.1139/f00-181 http://www.nrcresearchpress.com/doi/pdf/10.1139/f00-181 |
long_lat |
ENVELOPE(9.692,9.692,63.563,63.563) |
geographic |
Antarctic Arctic Arctic Ocean Kattegat Southern Ocean |
geographic_facet |
Antarctic Arctic Arctic Ocean Kattegat Southern Ocean |
genre |
Antarc* Antarctic Arctic Arctic Ocean Euphausia superba Meganyctiphanes norvegica Northern krill Southern Ocean |
genre_facet |
Antarc* Antarctic Arctic Arctic Ocean Euphausia superba Meganyctiphanes norvegica Northern krill Southern Ocean |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 57, issue S3, page 91-103 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f00-181 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
57 |
container_issue |
S3 |
container_start_page |
91 |
op_container_end_page |
103 |
_version_ |
1802644696227381248 |