Historical delta(15) N records of Saccharina specimens from oligotrophic waters of Japan Sea (Hokkaido)
Historically Saccharina spp. beds occurred along the west coast of Hokkaido, an oligotrophic area, and were commercially exploited. Currently extensive commercial Saccharina spp. beds do not form due to nutrient limitations. Here, we postulate that nutrients assimilated by paleo-Saccharina spp. beds...
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/67133 2023-05-15T17:52:40+02:00 Historical delta(15) N records of Saccharina specimens from oligotrophic waters of Japan Sea (Hokkaido) Kuribayashi, Takanori Abe, Tsuyoshi Montani, Shigeru http://hdl.handle.net/2115/67133 https://doi.org/10.1371/journal.pone.0180760 eng eng PLOS http://hdl.handle.net/2115/67133 PLoS ONE, 12(7): e0180760 http://dx.doi.org/10.1371/journal.pone.0180760 http://creativecommons.org/licenses/by/4.0/ CC-BY 660 article fthokunivhus https://doi.org/10.1371/journal.pone.0180760 2022-11-18T01:04:25Z Historically Saccharina spp. beds occurred along the west coast of Hokkaido, an oligotrophic area, and were commercially exploited. Currently extensive commercial Saccharina spp. beds do not form due to nutrient limitations. Here, we postulate that nutrients assimilated by paleo-Saccharina spp. beds may have been derived from spawning herrings (Clupea pallasii) acting as organisms that formed a vector from their feeding grounds (Okhotsk Sea and Pacific Ocean) to their spawning area (west coast of Hokkaido, Japan Sea). To test this hypothesis we examined stable nitrogen isotope ratios (delta N-15) of 100-to 135-year-old Saccharina specimens preserved at the Herbarium (Hokkaido University Museum). delta(15) N values of the paleo-Saccharina specimens collected from this region were in the range of 10%, which is significantly higher than the current 3-7% in freshly sampled Saccharina spp. This high delta(15) N indicates that spawning herring (Clupea pallasii) had potentially been a significant source of dissolved inorganic nitrogen (DIN) absorbed by Saccharina, acting as an organism forming a vector for transporting nutrients from eutrophic to oligotrophic coastal ecosystems. Our findings support the hypothesis of so-called "herring-derived nutrients. Article in Journal/Newspaper okhotsk sea Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Okhotsk Pacific PLOS ONE 12 7 e0180760 |
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Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
660 |
spellingShingle |
660 Kuribayashi, Takanori Abe, Tsuyoshi Montani, Shigeru Historical delta(15) N records of Saccharina specimens from oligotrophic waters of Japan Sea (Hokkaido) |
topic_facet |
660 |
description |
Historically Saccharina spp. beds occurred along the west coast of Hokkaido, an oligotrophic area, and were commercially exploited. Currently extensive commercial Saccharina spp. beds do not form due to nutrient limitations. Here, we postulate that nutrients assimilated by paleo-Saccharina spp. beds may have been derived from spawning herrings (Clupea pallasii) acting as organisms that formed a vector from their feeding grounds (Okhotsk Sea and Pacific Ocean) to their spawning area (west coast of Hokkaido, Japan Sea). To test this hypothesis we examined stable nitrogen isotope ratios (delta N-15) of 100-to 135-year-old Saccharina specimens preserved at the Herbarium (Hokkaido University Museum). delta(15) N values of the paleo-Saccharina specimens collected from this region were in the range of 10%, which is significantly higher than the current 3-7% in freshly sampled Saccharina spp. This high delta(15) N indicates that spawning herring (Clupea pallasii) had potentially been a significant source of dissolved inorganic nitrogen (DIN) absorbed by Saccharina, acting as an organism forming a vector for transporting nutrients from eutrophic to oligotrophic coastal ecosystems. Our findings support the hypothesis of so-called "herring-derived nutrients. |
format |
Article in Journal/Newspaper |
author |
Kuribayashi, Takanori Abe, Tsuyoshi Montani, Shigeru |
author_facet |
Kuribayashi, Takanori Abe, Tsuyoshi Montani, Shigeru |
author_sort |
Kuribayashi, Takanori |
title |
Historical delta(15) N records of Saccharina specimens from oligotrophic waters of Japan Sea (Hokkaido) |
title_short |
Historical delta(15) N records of Saccharina specimens from oligotrophic waters of Japan Sea (Hokkaido) |
title_full |
Historical delta(15) N records of Saccharina specimens from oligotrophic waters of Japan Sea (Hokkaido) |
title_fullStr |
Historical delta(15) N records of Saccharina specimens from oligotrophic waters of Japan Sea (Hokkaido) |
title_full_unstemmed |
Historical delta(15) N records of Saccharina specimens from oligotrophic waters of Japan Sea (Hokkaido) |
title_sort |
historical delta(15) n records of saccharina specimens from oligotrophic waters of japan sea (hokkaido) |
publisher |
PLOS |
url |
http://hdl.handle.net/2115/67133 https://doi.org/10.1371/journal.pone.0180760 |
geographic |
Okhotsk Pacific |
geographic_facet |
Okhotsk Pacific |
genre |
okhotsk sea |
genre_facet |
okhotsk sea |
op_relation |
http://hdl.handle.net/2115/67133 PLoS ONE, 12(7): e0180760 http://dx.doi.org/10.1371/journal.pone.0180760 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0180760 |
container_title |
PLOS ONE |
container_volume |
12 |
container_issue |
7 |
container_start_page |
e0180760 |
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1766160366129119232 |