Supplementary material from "Southern Ocean biological iron cycling in the pre-whaling and present ecosystems"
This study aimed to create the first model of biological iron (Fe) cycling in the Southern Ocean food web. Two biomass-balanced Ecopath models were built to represent pre- and post-whaling ecosystem states (1900 and 2008). Functional group biomasses (tonnes wet weight km −2 ) were converted to bioge...
Main Authors: | , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Figshare
2016
|
Subjects: | |
Online Access: | https://dx.doi.org/10.6084/m9.figshare.c.3491595 https://figshare.com/collections/Supplementary_material_from_Southern_Ocean_biological_iron_cycling_in_the_pre-whaling_and_present_ecosystems_/3491595 |
id |
ftdatacite:10.6084/m9.figshare.c.3491595 |
---|---|
record_format |
openpolar |
spelling |
ftdatacite:10.6084/m9.figshare.c.3491595 2023-05-15T15:37:11+02:00 Supplementary material from "Southern Ocean biological iron cycling in the pre-whaling and present ecosystems" Maldonado, Maria T. Surma, Szymon Pakhomov, Evgeny A. 2016 https://dx.doi.org/10.6084/m9.figshare.c.3491595 https://figshare.com/collections/Supplementary_material_from_Southern_Ocean_biological_iron_cycling_in_the_pre-whaling_and_present_ecosystems_/3491595 unknown Figshare https://dx.doi.org/10.1098/rsta.2015.0292 CC-BY https://creativecommons.org/licenses/by/4.0 CC-BY Oceanography FOS Earth and related environmental sciences Collection article 2016 ftdatacite https://doi.org/10.6084/m9.figshare.c.3491595 https://doi.org/10.1098/rsta.2015.0292 2021-11-05T12:55:41Z This study aimed to create the first model of biological iron (Fe) cycling in the Southern Ocean food web. Two biomass-balanced Ecopath models were built to represent pre- and post-whaling ecosystem states (1900 and 2008). Functional group biomasses (tonnes wet weight km −2 ) were converted to biogenic Fe pools (kg Fe km −2 ) using published Fe content ranges. In both models, biogenic Fe pools and consumption in the pelagic Southern Ocean were highest for plankton and small nektonic groups. The production of plankton biomass, particularly unicellular groups, accounted for the highest annual Fe demand. Microzooplankton contributed most to biological Fe recycling, followed by carnivorous zooplankton and krill. Biological Fe recycling matched previous estimates, and under most conditions, could entirely meet the Fe demand of bacterioplankton and phytoplankton. Iron recycling by large baleen whales was reduced 10-fold by whaling between 1900 and 2008. However, even under the 1900 scenario, the contribution of whales to biological Fe recycling was negligible compared with that of planktonic consumers. These models are a first step in examining oceanic-scale biological Fe cycling, highlighting gaps in our present knowledge and key questions for future research on the role of marine food webs in the cycling of trace elements in the sea. Article in Journal/Newspaper baleen whales Southern Ocean DataCite Metadata Store (German National Library of Science and Technology) Southern Ocean |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
unknown |
topic |
Oceanography FOS Earth and related environmental sciences |
spellingShingle |
Oceanography FOS Earth and related environmental sciences Maldonado, Maria T. Surma, Szymon Pakhomov, Evgeny A. Supplementary material from "Southern Ocean biological iron cycling in the pre-whaling and present ecosystems" |
topic_facet |
Oceanography FOS Earth and related environmental sciences |
description |
This study aimed to create the first model of biological iron (Fe) cycling in the Southern Ocean food web. Two biomass-balanced Ecopath models were built to represent pre- and post-whaling ecosystem states (1900 and 2008). Functional group biomasses (tonnes wet weight km −2 ) were converted to biogenic Fe pools (kg Fe km −2 ) using published Fe content ranges. In both models, biogenic Fe pools and consumption in the pelagic Southern Ocean were highest for plankton and small nektonic groups. The production of plankton biomass, particularly unicellular groups, accounted for the highest annual Fe demand. Microzooplankton contributed most to biological Fe recycling, followed by carnivorous zooplankton and krill. Biological Fe recycling matched previous estimates, and under most conditions, could entirely meet the Fe demand of bacterioplankton and phytoplankton. Iron recycling by large baleen whales was reduced 10-fold by whaling between 1900 and 2008. However, even under the 1900 scenario, the contribution of whales to biological Fe recycling was negligible compared with that of planktonic consumers. These models are a first step in examining oceanic-scale biological Fe cycling, highlighting gaps in our present knowledge and key questions for future research on the role of marine food webs in the cycling of trace elements in the sea. |
format |
Article in Journal/Newspaper |
author |
Maldonado, Maria T. Surma, Szymon Pakhomov, Evgeny A. |
author_facet |
Maldonado, Maria T. Surma, Szymon Pakhomov, Evgeny A. |
author_sort |
Maldonado, Maria T. |
title |
Supplementary material from "Southern Ocean biological iron cycling in the pre-whaling and present ecosystems" |
title_short |
Supplementary material from "Southern Ocean biological iron cycling in the pre-whaling and present ecosystems" |
title_full |
Supplementary material from "Southern Ocean biological iron cycling in the pre-whaling and present ecosystems" |
title_fullStr |
Supplementary material from "Southern Ocean biological iron cycling in the pre-whaling and present ecosystems" |
title_full_unstemmed |
Supplementary material from "Southern Ocean biological iron cycling in the pre-whaling and present ecosystems" |
title_sort |
supplementary material from "southern ocean biological iron cycling in the pre-whaling and present ecosystems" |
publisher |
Figshare |
publishDate |
2016 |
url |
https://dx.doi.org/10.6084/m9.figshare.c.3491595 https://figshare.com/collections/Supplementary_material_from_Southern_Ocean_biological_iron_cycling_in_the_pre-whaling_and_present_ecosystems_/3491595 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
baleen whales Southern Ocean |
genre_facet |
baleen whales Southern Ocean |
op_relation |
https://dx.doi.org/10.1098/rsta.2015.0292 |
op_rights |
CC-BY https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.c.3491595 https://doi.org/10.1098/rsta.2015.0292 |
_version_ |
1766367639216586752 |