Species composition of three size fractions of zooplankton used in routine monitoring of the Barents Sea ecosystem
Size fractionation with 2000 and 1000 μm screens is used by the Institute of Marine Research in Norway in routine monitoring of zooplankton biomass. This study examines the separation of taxa by this procedure. For copepods and cladocerans, the fractionation separates individuals according to their...
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Online Access: | https://hdl.handle.net/11250/2828839 https://doi.org/10.1093/plankt/fbab056 |
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ftimr:oai:imr.brage.unit.no:11250/2828839 2023-05-15T15:38:41+02:00 Species composition of three size fractions of zooplankton used in routine monitoring of the Barents Sea ecosystem Skjoldal, Hein Rune 2021 application/pdf https://hdl.handle.net/11250/2828839 https://doi.org/10.1093/plankt/fbab056 eng eng Norges forskningsråd: 228880 Journal of Plankton Research. 2021, 43 (5), 762-772. urn:issn:0142-7873 https://hdl.handle.net/11250/2828839 https://doi.org/10.1093/plankt/fbab056 cristin:1951527 762-772 43 Journal of Plankton Research 5 Peer reviewed Journal article 2021 ftimr https://doi.org/10.1093/plankt/fbab056 2021-11-17T23:36:51Z Size fractionation with 2000 and 1000 μm screens is used by the Institute of Marine Research in Norway in routine monitoring of zooplankton biomass. This study examines the separation of taxa by this procedure. For copepods and cladocerans, the fractionation separates individuals according to their size in a consistent and predictable manner. Individuals up to 0.4 mm in width are contained in the small fraction (<1 mm). From width 0.4 to 0.8 mm, there is a progressive shift from the small to the medium fraction (1–2 mm). From about 0.8 mm width, individuals start to be contained in the large fraction (>2 mm). For Calanus finmarchicus, young copepodites CI–CIII are contained in the small fraction, while the older stages CV and adults are contained in the medium fraction. Small copepods (Oithona, Oncaea, Microcalanus, Pseudocalanus) are contained in the small fraction, as are most appendicularians and meroplanktonic invertebrate larvae. The large fraction includes large copepods, larger individuals of chaetognaths, krill and amphipods. The consistency of separation of taxa by size will help to interpret and improve the ecological relevance of results on size-fractioned zooplankton biomass in the Barents Sea as well as other high-latitude areas. publishedVersion Article in Journal/Newspaper Barents Sea Calanus finmarchicus Copepods Institute for Marine Research: Brage IMR Barents Sea Norway Journal of Plankton Research 43 5 762 772 |
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Open Polar |
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Institute for Marine Research: Brage IMR |
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ftimr |
language |
English |
description |
Size fractionation with 2000 and 1000 μm screens is used by the Institute of Marine Research in Norway in routine monitoring of zooplankton biomass. This study examines the separation of taxa by this procedure. For copepods and cladocerans, the fractionation separates individuals according to their size in a consistent and predictable manner. Individuals up to 0.4 mm in width are contained in the small fraction (<1 mm). From width 0.4 to 0.8 mm, there is a progressive shift from the small to the medium fraction (1–2 mm). From about 0.8 mm width, individuals start to be contained in the large fraction (>2 mm). For Calanus finmarchicus, young copepodites CI–CIII are contained in the small fraction, while the older stages CV and adults are contained in the medium fraction. Small copepods (Oithona, Oncaea, Microcalanus, Pseudocalanus) are contained in the small fraction, as are most appendicularians and meroplanktonic invertebrate larvae. The large fraction includes large copepods, larger individuals of chaetognaths, krill and amphipods. The consistency of separation of taxa by size will help to interpret and improve the ecological relevance of results on size-fractioned zooplankton biomass in the Barents Sea as well as other high-latitude areas. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Skjoldal, Hein Rune |
spellingShingle |
Skjoldal, Hein Rune Species composition of three size fractions of zooplankton used in routine monitoring of the Barents Sea ecosystem |
author_facet |
Skjoldal, Hein Rune |
author_sort |
Skjoldal, Hein Rune |
title |
Species composition of three size fractions of zooplankton used in routine monitoring of the Barents Sea ecosystem |
title_short |
Species composition of three size fractions of zooplankton used in routine monitoring of the Barents Sea ecosystem |
title_full |
Species composition of three size fractions of zooplankton used in routine monitoring of the Barents Sea ecosystem |
title_fullStr |
Species composition of three size fractions of zooplankton used in routine monitoring of the Barents Sea ecosystem |
title_full_unstemmed |
Species composition of three size fractions of zooplankton used in routine monitoring of the Barents Sea ecosystem |
title_sort |
species composition of three size fractions of zooplankton used in routine monitoring of the barents sea ecosystem |
publishDate |
2021 |
url |
https://hdl.handle.net/11250/2828839 https://doi.org/10.1093/plankt/fbab056 |
geographic |
Barents Sea Norway |
geographic_facet |
Barents Sea Norway |
genre |
Barents Sea Calanus finmarchicus Copepods |
genre_facet |
Barents Sea Calanus finmarchicus Copepods |
op_source |
762-772 43 Journal of Plankton Research 5 |
op_relation |
Norges forskningsråd: 228880 Journal of Plankton Research. 2021, 43 (5), 762-772. urn:issn:0142-7873 https://hdl.handle.net/11250/2828839 https://doi.org/10.1093/plankt/fbab056 cristin:1951527 |
op_doi |
https://doi.org/10.1093/plankt/fbab056 |
container_title |
Journal of Plankton Research |
container_volume |
43 |
container_issue |
5 |
container_start_page |
762 |
op_container_end_page |
772 |
_version_ |
1766369929949347840 |