Krill diversity and population structure along the sub-Arctic GodthAyenbsfjord, SW Greenland
In June 2010 four krill species were collected in Godthåbsfjord, SW Greenland, namely Thysanoessa raschii, T. inermis, T. longicaudata and Meganyctiphanes norvegica. A transect from offshore Fyllas Bank to the inner Godthåbsfjord revealed a zonation of the species in relation to hydrography. Offshor...
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ftzenodo:oai:zenodo.org:46288 2023-05-15T15:06:43+02:00 Krill diversity and population structure along the sub-Arctic GodthAyenbsfjord, SW Greenland Agersted, Mette Dalgaard Nielsen, Torkel Gissel 2014-05-02 https://zenodo.org/record/46288 https://doi.org/10.1093/plankt/fbt139 unknown info:eu-repo/grantAgreement/EC/FP7/264933/ https://zenodo.org/communities/euro-basin https://zenodo.org/communities/ecfunded https://zenodo.org/record/46288 https://doi.org/10.1093/plankt/fbt139 oai:zenodo.org:46288 info:eu-repo/semantics/openAccess Thysanoessa spp Meganyctiphanes norvegica length–frequency distribution population structure length–weight relations info:eu-repo/semantics/article publication-article 2014 ftzenodo https://doi.org/10.1093/plankt/fbt139 2023-03-10T21:54:32Z In June 2010 four krill species were collected in Godthåbsfjord, SW Greenland, namely Thysanoessa raschii, T. inermis, T. longicaudata and Meganyctiphanes norvegica. A transect from offshore Fyllas Bank to the inner Godthåbsfjord revealed a zonation of the species in relation to hydrography. Offshore, in the Atlantic-influenced water, the Atlantic T. longicaudata dominated. All individuals of T. longicaudata found offshore were carrying spermatophores. Within the fjord T. raschii and T. inermis were present in high numbers but the former dominated. The boreal M. norvegica were only present in the inner part of the fjord. Presence of only 1-year-old individuals and no fertilized females suggests the population is sustained by advection of M. norvegica from offshore waters. Krill community abundance and biomass were lowest offshore and peaked in the innermost part of Godthåbsfjord. Thysanoessa inermis matured after 2 years, while T. raschii matured after 1 and 2 years, respectively, depending on temperature. The present study suggests that a warmer future will favour Atlantic species and result in a more diverse self-sustainable krill community in the Godthåbsfjord. Article in Journal/Newspaper Arctic Godthåbsfjord Greenland Meganyctiphanes norvegica Thysanoessa raschii Thysanoessa inermis Zenodo Arctic Greenland Fyllas Bank ENVELOPE(-53.000,-53.000,64.000,64.000) Journal of Plankton Research 36 3 800 815 |
institution |
Open Polar |
collection |
Zenodo |
op_collection_id |
ftzenodo |
language |
unknown |
topic |
Thysanoessa spp Meganyctiphanes norvegica length–frequency distribution population structure length–weight relations |
spellingShingle |
Thysanoessa spp Meganyctiphanes norvegica length–frequency distribution population structure length–weight relations Agersted, Mette Dalgaard Nielsen, Torkel Gissel Krill diversity and population structure along the sub-Arctic GodthAyenbsfjord, SW Greenland |
topic_facet |
Thysanoessa spp Meganyctiphanes norvegica length–frequency distribution population structure length–weight relations |
description |
In June 2010 four krill species were collected in Godthåbsfjord, SW Greenland, namely Thysanoessa raschii, T. inermis, T. longicaudata and Meganyctiphanes norvegica. A transect from offshore Fyllas Bank to the inner Godthåbsfjord revealed a zonation of the species in relation to hydrography. Offshore, in the Atlantic-influenced water, the Atlantic T. longicaudata dominated. All individuals of T. longicaudata found offshore were carrying spermatophores. Within the fjord T. raschii and T. inermis were present in high numbers but the former dominated. The boreal M. norvegica were only present in the inner part of the fjord. Presence of only 1-year-old individuals and no fertilized females suggests the population is sustained by advection of M. norvegica from offshore waters. Krill community abundance and biomass were lowest offshore and peaked in the innermost part of Godthåbsfjord. Thysanoessa inermis matured after 2 years, while T. raschii matured after 1 and 2 years, respectively, depending on temperature. The present study suggests that a warmer future will favour Atlantic species and result in a more diverse self-sustainable krill community in the Godthåbsfjord. |
format |
Article in Journal/Newspaper |
author |
Agersted, Mette Dalgaard Nielsen, Torkel Gissel |
author_facet |
Agersted, Mette Dalgaard Nielsen, Torkel Gissel |
author_sort |
Agersted, Mette Dalgaard |
title |
Krill diversity and population structure along the sub-Arctic GodthAyenbsfjord, SW Greenland |
title_short |
Krill diversity and population structure along the sub-Arctic GodthAyenbsfjord, SW Greenland |
title_full |
Krill diversity and population structure along the sub-Arctic GodthAyenbsfjord, SW Greenland |
title_fullStr |
Krill diversity and population structure along the sub-Arctic GodthAyenbsfjord, SW Greenland |
title_full_unstemmed |
Krill diversity and population structure along the sub-Arctic GodthAyenbsfjord, SW Greenland |
title_sort |
krill diversity and population structure along the sub-arctic godthayenbsfjord, sw greenland |
publishDate |
2014 |
url |
https://zenodo.org/record/46288 https://doi.org/10.1093/plankt/fbt139 |
long_lat |
ENVELOPE(-53.000,-53.000,64.000,64.000) |
geographic |
Arctic Greenland Fyllas Bank |
geographic_facet |
Arctic Greenland Fyllas Bank |
genre |
Arctic Godthåbsfjord Greenland Meganyctiphanes norvegica Thysanoessa raschii Thysanoessa inermis |
genre_facet |
Arctic Godthåbsfjord Greenland Meganyctiphanes norvegica Thysanoessa raschii Thysanoessa inermis |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/264933/ https://zenodo.org/communities/euro-basin https://zenodo.org/communities/ecfunded https://zenodo.org/record/46288 https://doi.org/10.1093/plankt/fbt139 oai:zenodo.org:46288 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1093/plankt/fbt139 |
container_title |
Journal of Plankton Research |
container_volume |
36 |
container_issue |
3 |
container_start_page |
800 |
op_container_end_page |
815 |
_version_ |
1766338268653158400 |