Limnocalanus macrurus in the Kara Sea (Arctic Ocean): an opportunistic copepod as evident from distribution and lipid patterns
Limnocalanus macrurus is an important memberof the zooplankton communities of the Siberian shelfseas. During the cruise, Boris Petrov 1999, in August/September to the southern Kara Sea and the Ob andYenisej estuaries, its abundance and vertical distributionwere investigated. In adults, salinity tole...
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Online Access: | https://epic.awi.de/id/eprint/9679/ https://epic.awi.de/id/eprint/9679/1/Hir2003d.pdf https://doi.org/10.1007/s00300-003-0541-9 https://hdl.handle.net/10013/epic.20180 https://hdl.handle.net/10013/epic.20180.d001 |
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ftawi:oai:epic.awi.de:9679 2023-09-05T13:15:55+02:00 Limnocalanus macrurus in the Kara Sea (Arctic Ocean): an opportunistic copepod as evident from distribution and lipid patterns Hirche, Hans-Jürgen Fetzer, Ingo Graeve, Martin Kattner, Gerhard 2003 application/pdf https://epic.awi.de/id/eprint/9679/ https://epic.awi.de/id/eprint/9679/1/Hir2003d.pdf https://doi.org/10.1007/s00300-003-0541-9 https://hdl.handle.net/10013/epic.20180 https://hdl.handle.net/10013/epic.20180.d001 unknown https://epic.awi.de/id/eprint/9679/1/Hir2003d.pdf https://hdl.handle.net/10013/epic.20180.d001 Hirche, H. J. , Fetzer, I. , Graeve, M. orcid:0000-0002-2294-1915 and Kattner, G. (2003) Limnocalanus macrurus in the Kara Sea (Arctic Ocean): an opportunistic copepod as evident from distribution and lipid patterns , Polar biology, 26 , pp. 720-726 . doi:10.1007/s00300-003-0541-9 <https://doi.org/10.1007/s00300-003-0541-9> , hdl:10013/epic.20180 EPIC3Polar biology, 26, pp. 720-726 Article isiRev 2003 ftawi https://doi.org/10.1007/s00300-003-0541-9 2023-08-22T19:48:11Z Limnocalanus macrurus is an important memberof the zooplankton communities of the Siberian shelfseas. During the cruise, Boris Petrov 1999, in August/September to the southern Kara Sea and the Ob andYenisej estuaries, its abundance and vertical distributionwere investigated. In adults, salinity tolerance, egg production,feeding and lipid composition were studied.L. macrurus occurred in water with salinities rangingfrom 1.7 to >33 without clear preference, as revealedfrom salinity-tolerance experiments. The dominance ofadults and their high wax-ester content, as well as thelack of egg production and feeding activity, suggest thatthe population was in the pre-overwintering condition.Wax esters allow L. macrurus to survive long starvationperiods and to reproduce in times of little food availability,but through its potential carnivory, it should beable to replenish its diet by preying on other zooplankton.Morphology and swimming behaviour of L. macrurusresemble the omnivorous copepod Metridialonga, which, however, is mainly found in the openocean. The overall lipid composition and the mode oflipid storage also point to an omnivorous feedingbehaviour. However, the high proportion of the markerfatty acid 16:1(n-7) suggests that L. macrurus stronglyexploited the existent phytoplankton bloom, consistingmainly of diatoms. A striking characteristic of its lipidsis the high level of the 20:1(n-7) fatty alcohol in additionto the 18:1(n-7) fatty acid and alcohol. It is the firstcopepod species known to produce such high amountsof 20:1(n-7) alcohol. Since this alcohol and the correspondingfatty acid are not abundant in any prey, thislong-chain monounsaturated wax-ester moiety has to beproduced de novo. Owing to these particular lipidcharacteristics in its distribution, feeding, and life-cyclestrategy, L. macrurus can be described as a very versatileand opportunistic copepod. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Kara Sea Phytoplankton Polar Biology Zooplankton Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Arctic Arctic Ocean Kara Sea Polar Biology 26 11 720 726 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Limnocalanus macrurus is an important memberof the zooplankton communities of the Siberian shelfseas. During the cruise, Boris Petrov 1999, in August/September to the southern Kara Sea and the Ob andYenisej estuaries, its abundance and vertical distributionwere investigated. In adults, salinity tolerance, egg production,feeding and lipid composition were studied.L. macrurus occurred in water with salinities rangingfrom 1.7 to >33 without clear preference, as revealedfrom salinity-tolerance experiments. The dominance ofadults and their high wax-ester content, as well as thelack of egg production and feeding activity, suggest thatthe population was in the pre-overwintering condition.Wax esters allow L. macrurus to survive long starvationperiods and to reproduce in times of little food availability,but through its potential carnivory, it should beable to replenish its diet by preying on other zooplankton.Morphology and swimming behaviour of L. macrurusresemble the omnivorous copepod Metridialonga, which, however, is mainly found in the openocean. The overall lipid composition and the mode oflipid storage also point to an omnivorous feedingbehaviour. However, the high proportion of the markerfatty acid 16:1(n-7) suggests that L. macrurus stronglyexploited the existent phytoplankton bloom, consistingmainly of diatoms. A striking characteristic of its lipidsis the high level of the 20:1(n-7) fatty alcohol in additionto the 18:1(n-7) fatty acid and alcohol. It is the firstcopepod species known to produce such high amountsof 20:1(n-7) alcohol. Since this alcohol and the correspondingfatty acid are not abundant in any prey, thislong-chain monounsaturated wax-ester moiety has to beproduced de novo. Owing to these particular lipidcharacteristics in its distribution, feeding, and life-cyclestrategy, L. macrurus can be described as a very versatileand opportunistic copepod. |
format |
Article in Journal/Newspaper |
author |
Hirche, Hans-Jürgen Fetzer, Ingo Graeve, Martin Kattner, Gerhard |
spellingShingle |
Hirche, Hans-Jürgen Fetzer, Ingo Graeve, Martin Kattner, Gerhard Limnocalanus macrurus in the Kara Sea (Arctic Ocean): an opportunistic copepod as evident from distribution and lipid patterns |
author_facet |
Hirche, Hans-Jürgen Fetzer, Ingo Graeve, Martin Kattner, Gerhard |
author_sort |
Hirche, Hans-Jürgen |
title |
Limnocalanus macrurus in the Kara Sea (Arctic Ocean): an opportunistic copepod as evident from distribution and lipid patterns |
title_short |
Limnocalanus macrurus in the Kara Sea (Arctic Ocean): an opportunistic copepod as evident from distribution and lipid patterns |
title_full |
Limnocalanus macrurus in the Kara Sea (Arctic Ocean): an opportunistic copepod as evident from distribution and lipid patterns |
title_fullStr |
Limnocalanus macrurus in the Kara Sea (Arctic Ocean): an opportunistic copepod as evident from distribution and lipid patterns |
title_full_unstemmed |
Limnocalanus macrurus in the Kara Sea (Arctic Ocean): an opportunistic copepod as evident from distribution and lipid patterns |
title_sort |
limnocalanus macrurus in the kara sea (arctic ocean): an opportunistic copepod as evident from distribution and lipid patterns |
publishDate |
2003 |
url |
https://epic.awi.de/id/eprint/9679/ https://epic.awi.de/id/eprint/9679/1/Hir2003d.pdf https://doi.org/10.1007/s00300-003-0541-9 https://hdl.handle.net/10013/epic.20180 https://hdl.handle.net/10013/epic.20180.d001 |
geographic |
Arctic Arctic Ocean Kara Sea |
geographic_facet |
Arctic Arctic Ocean Kara Sea |
genre |
Arctic Arctic Arctic Ocean Kara Sea Phytoplankton Polar Biology Zooplankton |
genre_facet |
Arctic Arctic Arctic Ocean Kara Sea Phytoplankton Polar Biology Zooplankton |
op_source |
EPIC3Polar biology, 26, pp. 720-726 |
op_relation |
https://epic.awi.de/id/eprint/9679/1/Hir2003d.pdf https://hdl.handle.net/10013/epic.20180.d001 Hirche, H. J. , Fetzer, I. , Graeve, M. orcid:0000-0002-2294-1915 and Kattner, G. (2003) Limnocalanus macrurus in the Kara Sea (Arctic Ocean): an opportunistic copepod as evident from distribution and lipid patterns , Polar biology, 26 , pp. 720-726 . doi:10.1007/s00300-003-0541-9 <https://doi.org/10.1007/s00300-003-0541-9> , hdl:10013/epic.20180 |
op_doi |
https://doi.org/10.1007/s00300-003-0541-9 |
container_title |
Polar Biology |
container_volume |
26 |
container_issue |
11 |
container_start_page |
720 |
op_container_end_page |
726 |
_version_ |
1776197718374350848 |