Abundance and biomass of copepods and cladocerans in Atlantic and Arctic domains of the Barents Sea ecosystem
Zooplankton in the Barents Sea have been monitored annually with a standard procedure with determination of size-fractioned biomass since the mid-1980s. Biomass of copepods and cladocerans was estimated based on measured abundance and individual weights taken from literature. Calanus species were do...
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ftpubmed:oai:pubmedcentral.nih.gov:10710905 2024-01-14T10:04:22+01:00 Abundance and biomass of copepods and cladocerans in Atlantic and Arctic domains of the Barents Sea ecosystem Skjoldal, Hein Rune Aarflot, Johanna Myrseth 2023-10-12 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10710905/ http://www.ncbi.nlm.nih.gov/pubmed/38084300 https://doi.org/10.1093/plankt/fbad043 en eng Oxford University Press http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10710905/ http://www.ncbi.nlm.nih.gov/pubmed/38084300 http://dx.doi.org/10.1093/plankt/fbad043 © The Author(s) 2023. Published by Oxford University Press. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. J Plankton Res Original Article Text 2023 ftpubmed https://doi.org/10.1093/plankt/fbad043 2023-12-17T01:49:28Z Zooplankton in the Barents Sea have been monitored annually with a standard procedure with determination of size-fractioned biomass since the mid-1980s. Biomass of copepods and cladocerans was estimated based on measured abundance and individual weights taken from literature. Calanus species were dominant, making up ~85% of the estimated biomass of copepods. The second most important taxon was Oithona spp. (~0.5 g dry weight (dw) m(−2), ~10%), followed by Metridia spp. (~0.15 g dw m(−2), 2–3%) and Pseudocalanus spp. (0.10–0.15 g dw m(−2), 1–5%). Estimated biomass of cladoceran taxa (Evadne and Podon) was low (0.01 g dw m(−2)). Calanus spp. contributed most of the biomass of the medium size fraction (1–2 mm), whereas small copepod species (Oithona, Pseudocalanus and others) contributed to the small size fraction (<1 mm). Estimated biomass of Calanus spp. and of the sum of small copepod species were both positively correlated with measured total zooplankton biomass (R(2) = 0.72 and 0.34, respectively). The biomass ratio of small copepod species to Calanus was similar in Atlantic and Arctic water masses (~0.15–0.2) but tended to increase with decreasing total biomass. This suggests a shift to relatively larger roles of small copepods as Calanus and total biomass decrease. Text Arctic Barents Sea Zooplankton Copepods PubMed Central (PMC) Arctic Barents Sea Journal of Plankton Research 45 6 870 884 |
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English |
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Original Article |
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Original Article Skjoldal, Hein Rune Aarflot, Johanna Myrseth Abundance and biomass of copepods and cladocerans in Atlantic and Arctic domains of the Barents Sea ecosystem |
topic_facet |
Original Article |
description |
Zooplankton in the Barents Sea have been monitored annually with a standard procedure with determination of size-fractioned biomass since the mid-1980s. Biomass of copepods and cladocerans was estimated based on measured abundance and individual weights taken from literature. Calanus species were dominant, making up ~85% of the estimated biomass of copepods. The second most important taxon was Oithona spp. (~0.5 g dry weight (dw) m(−2), ~10%), followed by Metridia spp. (~0.15 g dw m(−2), 2–3%) and Pseudocalanus spp. (0.10–0.15 g dw m(−2), 1–5%). Estimated biomass of cladoceran taxa (Evadne and Podon) was low (0.01 g dw m(−2)). Calanus spp. contributed most of the biomass of the medium size fraction (1–2 mm), whereas small copepod species (Oithona, Pseudocalanus and others) contributed to the small size fraction (<1 mm). Estimated biomass of Calanus spp. and of the sum of small copepod species were both positively correlated with measured total zooplankton biomass (R(2) = 0.72 and 0.34, respectively). The biomass ratio of small copepod species to Calanus was similar in Atlantic and Arctic water masses (~0.15–0.2) but tended to increase with decreasing total biomass. This suggests a shift to relatively larger roles of small copepods as Calanus and total biomass decrease. |
format |
Text |
author |
Skjoldal, Hein Rune Aarflot, Johanna Myrseth |
author_facet |
Skjoldal, Hein Rune Aarflot, Johanna Myrseth |
author_sort |
Skjoldal, Hein Rune |
title |
Abundance and biomass of copepods and cladocerans in Atlantic and Arctic domains of the Barents Sea ecosystem |
title_short |
Abundance and biomass of copepods and cladocerans in Atlantic and Arctic domains of the Barents Sea ecosystem |
title_full |
Abundance and biomass of copepods and cladocerans in Atlantic and Arctic domains of the Barents Sea ecosystem |
title_fullStr |
Abundance and biomass of copepods and cladocerans in Atlantic and Arctic domains of the Barents Sea ecosystem |
title_full_unstemmed |
Abundance and biomass of copepods and cladocerans in Atlantic and Arctic domains of the Barents Sea ecosystem |
title_sort |
abundance and biomass of copepods and cladocerans in atlantic and arctic domains of the barents sea ecosystem |
publisher |
Oxford University Press |
publishDate |
2023 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10710905/ http://www.ncbi.nlm.nih.gov/pubmed/38084300 https://doi.org/10.1093/plankt/fbad043 |
geographic |
Arctic Barents Sea |
geographic_facet |
Arctic Barents Sea |
genre |
Arctic Barents Sea Zooplankton Copepods |
genre_facet |
Arctic Barents Sea Zooplankton Copepods |
op_source |
J Plankton Res |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10710905/ http://www.ncbi.nlm.nih.gov/pubmed/38084300 http://dx.doi.org/10.1093/plankt/fbad043 |
op_rights |
© The Author(s) 2023. Published by Oxford University Press. https://creativecommons.org/licenses/by/4.0/This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
op_doi |
https://doi.org/10.1093/plankt/fbad043 |
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Journal of Plankton Research |
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45 |
container_issue |
6 |
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870 |
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884 |
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1788058912851755008 |