Assessing the trophic link between primary and secondary producers in the Southern Ocean: A carbon-biomass based approach
Scarcity of Carbon estimates from the biogeochemically important Southern Ocean (SO), if addressed better, can help in improving the present understanding of the Carbon (C) cycle of the region. We present estimates of standing stock of Carbon from every species, as well as the entire copepod communi...
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Format: | Article in Journal/Newspaper |
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ftnipr:oai:nipr.repo.nii.ac.jp:00016909 2023-05-15T18:02:48+02:00 Assessing the trophic link between primary and secondary producers in the Southern Ocean: A carbon-biomass based approach 2022-03 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16909 http://id.nii.ac.jp/1291/00016778/ en eng https://doi.org/10.1016/j.polar.2021.100734 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16909 http://id.nii.ac.jp/1291/00016778/ Polar Science, 31, 100734(2022-03) 18739652 Phytoplankton Morphometry Copepod carbon stock Trophic efficiency Southern Ocean Journal Article 2022 ftnipr https://doi.org/10.1016/j.polar.2021.100734 2022-12-03T19:43:26Z Scarcity of Carbon estimates from the biogeochemically important Southern Ocean (SO), if addressed better, can help in improving the present understanding of the Carbon (C) cycle of the region. We present estimates of standing stock of Carbon from every species, as well as the entire copepod community from this region during austral summer. Of the total copepod community, Rhincalanus gigas (13.397 mgC) contributed the most to C stock, followed by Calanus australis (5.269 mgC) and Calocalanus sp (1.027 mgC). The harpacticoid, Microsetella norvegica and poecilostomatoid, Oncaea curvata contributed more to C stock than the cyclopoids, Oithona similis and Oithona frigida. A total of 118.96 mgC was estimated from the copepod community. The trophic efficiency (Czoo/Cphyto) of 0.48 indicated a grazing pressure and exposure of copepods to a wide range of food sizes. Our findings highlight the necessity of regular spatiotemporal observations to better understand the fine ecological fluctuations and C cycle dynamics, given the accelerated changes in SO in the last few decades. Article in Journal/Newspaper Polar Science Polar Science Southern Ocean Copepods National Institute of Polar Research Repository, Japan Southern Ocean Austral Polar Science 31 100734 |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
Phytoplankton Morphometry Copepod carbon stock Trophic efficiency Southern Ocean |
spellingShingle |
Phytoplankton Morphometry Copepod carbon stock Trophic efficiency Southern Ocean Assessing the trophic link between primary and secondary producers in the Southern Ocean: A carbon-biomass based approach |
topic_facet |
Phytoplankton Morphometry Copepod carbon stock Trophic efficiency Southern Ocean |
description |
Scarcity of Carbon estimates from the biogeochemically important Southern Ocean (SO), if addressed better, can help in improving the present understanding of the Carbon (C) cycle of the region. We present estimates of standing stock of Carbon from every species, as well as the entire copepod community from this region during austral summer. Of the total copepod community, Rhincalanus gigas (13.397 mgC) contributed the most to C stock, followed by Calanus australis (5.269 mgC) and Calocalanus sp (1.027 mgC). The harpacticoid, Microsetella norvegica and poecilostomatoid, Oncaea curvata contributed more to C stock than the cyclopoids, Oithona similis and Oithona frigida. A total of 118.96 mgC was estimated from the copepod community. The trophic efficiency (Czoo/Cphyto) of 0.48 indicated a grazing pressure and exposure of copepods to a wide range of food sizes. Our findings highlight the necessity of regular spatiotemporal observations to better understand the fine ecological fluctuations and C cycle dynamics, given the accelerated changes in SO in the last few decades. |
format |
Article in Journal/Newspaper |
title |
Assessing the trophic link between primary and secondary producers in the Southern Ocean: A carbon-biomass based approach |
title_short |
Assessing the trophic link between primary and secondary producers in the Southern Ocean: A carbon-biomass based approach |
title_full |
Assessing the trophic link between primary and secondary producers in the Southern Ocean: A carbon-biomass based approach |
title_fullStr |
Assessing the trophic link between primary and secondary producers in the Southern Ocean: A carbon-biomass based approach |
title_full_unstemmed |
Assessing the trophic link between primary and secondary producers in the Southern Ocean: A carbon-biomass based approach |
title_sort |
assessing the trophic link between primary and secondary producers in the southern ocean: a carbon-biomass based approach |
publishDate |
2022 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16909 http://id.nii.ac.jp/1291/00016778/ |
geographic |
Southern Ocean Austral |
geographic_facet |
Southern Ocean Austral |
genre |
Polar Science Polar Science Southern Ocean Copepods |
genre_facet |
Polar Science Polar Science Southern Ocean Copepods |
op_relation |
https://doi.org/10.1016/j.polar.2021.100734 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16909 http://id.nii.ac.jp/1291/00016778/ Polar Science, 31, 100734(2022-03) 18739652 |
op_doi |
https://doi.org/10.1016/j.polar.2021.100734 |
container_title |
Polar Science |
container_volume |
31 |
container_start_page |
100734 |
_version_ |
1766173451815485440 |