Linear relationship between carbon and nitrogen isotope ratios along simple food chains in marine environments
To examine the relationship between carbon and nitrogen stable isotope (SI) ratios (δ13C and δ15N) of zooplankton, we analyzed samples collected bimonthly from March to October 2009, from the euphotic layers of the Oyashio current along the A-line in the western North Pacific. Isotopic ratios of hig...
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Online Access: | http://hdl.handle.net/2115/52084 https://doi.org/10.1093/plankt/fbr070 |
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/52084 2023-05-15T13:42:37+02:00 Linear relationship between carbon and nitrogen isotope ratios along simple food chains in marine environments Aita, Maki Noguchi Tadokoro, Kazuaki Ogawa, Nanako O. Hyodo, Fujio Ishii, Reiichiro Smith, S. Lan Saino, Toshiro Kishi, Michio J. Saitoh, Sei-ichi Wada, Eitaro http://hdl.handle.net/2115/52084 https://doi.org/10.1093/plankt/fbr070 eng eng Oxford University Press http://hdl.handle.net/2115/52084 Journal of Plankton Research, 33(11): 1629-1642 http://dx.doi.org/10.1093/plankt/fbr070 Stable isotopes Nitrogen Carbon Food chain Isotopic fractionation 452 article (author version) fthokunivhus https://doi.org/10.1093/plankt/fbr070 2022-11-18T01:02:41Z To examine the relationship between carbon and nitrogen stable isotope (SI) ratios (δ13C and δ15N) of zooplankton, we analyzed samples collected bimonthly from March to October 2009, from the euphotic layers of the Oyashio current along the A-line in the western North Pacific. Isotopic ratios of higher trophic levels such as predatory zooplankton and/or long-lived zooplankton varied little with season, while those of short-lived zooplankton were variable on the δ15N–δ13C map. We also analyzed preserved samples taken from the warm-core ring 86-B derived from the Kuroshio extension region. Although the zooplankton groups in the two regions exhibited different values in δ15N, the δ15N versus δ13C slopes for each ecosystem do not show significant differences. Statistical analysis conducted together with previously published data from the Antarctic Ocean and the Gulf of Alaska suggested a similar δ15N versus δ13C slope throughout the four regions. We attributed this common slope to physiological aspects of feeding processes (e.g. the kinetic isotope effects inherent in the processes of amino acid synthesis). The common pattern for all four oceanic regions suggests that SIs may be used to elucidate general patterns in ecosystems and biogeochemical cycles. Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Alaska Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Antarctic Antarctic Ocean Gulf of Alaska Oyashio ENVELOPE(157.000,157.000,50.000,50.000) Pacific The Antarctic Journal of Plankton Research 33 11 1629 1642 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Stable isotopes Nitrogen Carbon Food chain Isotopic fractionation 452 |
spellingShingle |
Stable isotopes Nitrogen Carbon Food chain Isotopic fractionation 452 Aita, Maki Noguchi Tadokoro, Kazuaki Ogawa, Nanako O. Hyodo, Fujio Ishii, Reiichiro Smith, S. Lan Saino, Toshiro Kishi, Michio J. Saitoh, Sei-ichi Wada, Eitaro Linear relationship between carbon and nitrogen isotope ratios along simple food chains in marine environments |
topic_facet |
Stable isotopes Nitrogen Carbon Food chain Isotopic fractionation 452 |
description |
To examine the relationship between carbon and nitrogen stable isotope (SI) ratios (δ13C and δ15N) of zooplankton, we analyzed samples collected bimonthly from March to October 2009, from the euphotic layers of the Oyashio current along the A-line in the western North Pacific. Isotopic ratios of higher trophic levels such as predatory zooplankton and/or long-lived zooplankton varied little with season, while those of short-lived zooplankton were variable on the δ15N–δ13C map. We also analyzed preserved samples taken from the warm-core ring 86-B derived from the Kuroshio extension region. Although the zooplankton groups in the two regions exhibited different values in δ15N, the δ15N versus δ13C slopes for each ecosystem do not show significant differences. Statistical analysis conducted together with previously published data from the Antarctic Ocean and the Gulf of Alaska suggested a similar δ15N versus δ13C slope throughout the four regions. We attributed this common slope to physiological aspects of feeding processes (e.g. the kinetic isotope effects inherent in the processes of amino acid synthesis). The common pattern for all four oceanic regions suggests that SIs may be used to elucidate general patterns in ecosystems and biogeochemical cycles. |
format |
Article in Journal/Newspaper |
author |
Aita, Maki Noguchi Tadokoro, Kazuaki Ogawa, Nanako O. Hyodo, Fujio Ishii, Reiichiro Smith, S. Lan Saino, Toshiro Kishi, Michio J. Saitoh, Sei-ichi Wada, Eitaro |
author_facet |
Aita, Maki Noguchi Tadokoro, Kazuaki Ogawa, Nanako O. Hyodo, Fujio Ishii, Reiichiro Smith, S. Lan Saino, Toshiro Kishi, Michio J. Saitoh, Sei-ichi Wada, Eitaro |
author_sort |
Aita, Maki Noguchi |
title |
Linear relationship between carbon and nitrogen isotope ratios along simple food chains in marine environments |
title_short |
Linear relationship between carbon and nitrogen isotope ratios along simple food chains in marine environments |
title_full |
Linear relationship between carbon and nitrogen isotope ratios along simple food chains in marine environments |
title_fullStr |
Linear relationship between carbon and nitrogen isotope ratios along simple food chains in marine environments |
title_full_unstemmed |
Linear relationship between carbon and nitrogen isotope ratios along simple food chains in marine environments |
title_sort |
linear relationship between carbon and nitrogen isotope ratios along simple food chains in marine environments |
publisher |
Oxford University Press |
url |
http://hdl.handle.net/2115/52084 https://doi.org/10.1093/plankt/fbr070 |
long_lat |
ENVELOPE(157.000,157.000,50.000,50.000) |
geographic |
Antarctic Antarctic Ocean Gulf of Alaska Oyashio Pacific The Antarctic |
geographic_facet |
Antarctic Antarctic Ocean Gulf of Alaska Oyashio Pacific The Antarctic |
genre |
Antarc* Antarctic Antarctic Ocean Alaska |
genre_facet |
Antarc* Antarctic Antarctic Ocean Alaska |
op_relation |
http://hdl.handle.net/2115/52084 Journal of Plankton Research, 33(11): 1629-1642 http://dx.doi.org/10.1093/plankt/fbr070 |
op_doi |
https://doi.org/10.1093/plankt/fbr070 |
container_title |
Journal of Plankton Research |
container_volume |
33 |
container_issue |
11 |
container_start_page |
1629 |
op_container_end_page |
1642 |
_version_ |
1766170163943571456 |