Population dynamics and life history strategies of the dominant copepods in a sub-arctic Greenlandic fjord
Investigations of the Arctic and Sub-Arctic pelagic food web have previously focused on the copepod genus Calanus, as they often dominate the mesozooplankton community and serve as a lipid rich food source for higher trophic levels. However, if night samples are considered a different food web might...
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ftdtupubl:oai:pure.atira.dk:publications/e1e3a70a-0cb9-4806-8daa-34cee4cab716 2023-12-24T10:12:09+01:00 Population dynamics and life history strategies of the dominant copepods in a sub-arctic Greenlandic fjord Kjellerup, Sanne Nielsen, Torkel Gissel 2014 https://orbit.dtu.dk/en/publications/e1e3a70a-0cb9-4806-8daa-34cee4cab716 eng eng https://orbit.dtu.dk/en/publications/e1e3a70a-0cb9-4806-8daa-34cee4cab716 info:eu-repo/semantics/restrictedAccess Kjellerup , S & Nielsen , T G 2014 , ' Population dynamics and life history strategies of the dominant copepods in a sub-arctic Greenlandic fjord ' , ESSAS Annual Science Meeting , Copenhagen , Denmark , 07/04/2014 - 09/04/2014 . conferenceObject 2014 ftdtupubl 2023-11-30T00:00:06Z Investigations of the Arctic and Sub-Arctic pelagic food web have previously focused on the copepod genus Calanus, as they often dominate the mesozooplankton community and serve as a lipid rich food source for higher trophic levels. However, if night samples are considered a different food web might emerges with the omnivorous copepod Metridia spp. in a major role. Biology of Metridia is practically unknown but deviates from Calanus e.g. Metridia does not hibernate but stays active yearlong benefiting from being omnivore. In the present study abundance, depth distribution, and egg and pellet production of two Calanus species and Metridia longa was monitored weekly from March-August. M. longa performed diel vertical migration of up to 200 meters and was the dominating larger copepod species. Weekly lipid measurements of M. longa showed a similar buildup of lipids during late summer as the 20 hibernating Calanus. M. longa might thereby also have a central role in the lipid rich food chain which is a distinct feature for Arctic and Sub-Arctic ecosystems Conference Object Arctic Arctic greenlandic Copepods Technical University of Denmark: DTU Orbit Arctic |
institution |
Open Polar |
collection |
Technical University of Denmark: DTU Orbit |
op_collection_id |
ftdtupubl |
language |
English |
description |
Investigations of the Arctic and Sub-Arctic pelagic food web have previously focused on the copepod genus Calanus, as they often dominate the mesozooplankton community and serve as a lipid rich food source for higher trophic levels. However, if night samples are considered a different food web might emerges with the omnivorous copepod Metridia spp. in a major role. Biology of Metridia is practically unknown but deviates from Calanus e.g. Metridia does not hibernate but stays active yearlong benefiting from being omnivore. In the present study abundance, depth distribution, and egg and pellet production of two Calanus species and Metridia longa was monitored weekly from March-August. M. longa performed diel vertical migration of up to 200 meters and was the dominating larger copepod species. Weekly lipid measurements of M. longa showed a similar buildup of lipids during late summer as the 20 hibernating Calanus. M. longa might thereby also have a central role in the lipid rich food chain which is a distinct feature for Arctic and Sub-Arctic ecosystems |
format |
Conference Object |
author |
Kjellerup, Sanne Nielsen, Torkel Gissel |
spellingShingle |
Kjellerup, Sanne Nielsen, Torkel Gissel Population dynamics and life history strategies of the dominant copepods in a sub-arctic Greenlandic fjord |
author_facet |
Kjellerup, Sanne Nielsen, Torkel Gissel |
author_sort |
Kjellerup, Sanne |
title |
Population dynamics and life history strategies of the dominant copepods in a sub-arctic Greenlandic fjord |
title_short |
Population dynamics and life history strategies of the dominant copepods in a sub-arctic Greenlandic fjord |
title_full |
Population dynamics and life history strategies of the dominant copepods in a sub-arctic Greenlandic fjord |
title_fullStr |
Population dynamics and life history strategies of the dominant copepods in a sub-arctic Greenlandic fjord |
title_full_unstemmed |
Population dynamics and life history strategies of the dominant copepods in a sub-arctic Greenlandic fjord |
title_sort |
population dynamics and life history strategies of the dominant copepods in a sub-arctic greenlandic fjord |
publishDate |
2014 |
url |
https://orbit.dtu.dk/en/publications/e1e3a70a-0cb9-4806-8daa-34cee4cab716 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Arctic greenlandic Copepods |
genre_facet |
Arctic Arctic greenlandic Copepods |
op_source |
Kjellerup , S & Nielsen , T G 2014 , ' Population dynamics and life history strategies of the dominant copepods in a sub-arctic Greenlandic fjord ' , ESSAS Annual Science Meeting , Copenhagen , Denmark , 07/04/2014 - 09/04/2014 . |
op_relation |
https://orbit.dtu.dk/en/publications/e1e3a70a-0cb9-4806-8daa-34cee4cab716 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
_version_ |
1786172857836896256 |