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https://hdl.handle.net/20.500.14094/90006808
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2024-03-29
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90006808 (fulltext)
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メタデータID
90006808
アクセス権
open access
出版タイプ
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タイトル
Influences of the Kuroshio on Interisland Remote Connectivity of Corals Across the Nansei Archipelago in the East China Sea
著者
Uchiyama, Yusuke ; Odani, Sachika ; Kashima, Motohiko ; Kamidaira, Yuki ; Mitarai, Satoshi
著者ID
A0968
研究者ID
1000080344315
KUID
https://kuid-rm-web.ofc.kobe-u.ac.jp/profile/ja.321466d484cf497c520e17560c007669.html
著者名
Uchiyama, Yusuke
内山, 雄介
ウチヤマ, ユウスケ
所属機関名
工学研究科
著者名
Odani, Sachika
著者名
Kashima, Motohiko
著者名
Kamidaira, Yuki
著者名
Mitarai, Satoshi
収録物名
Journal of Geophysical Research: Oceans
巻(号)
123(12)
ページ
9245-9265
出版者
American Geophysical Union
刊行日
2018-12
公開日
2020-02-27
抄録
For the preservation and protection of coral habitats along the Nansei Archipelago in the East China Sea, a submesoscale eddy‐resolving synoptic ocean model was developed based on the Regional Oceanic Modeling System coupled with a 3‐D Lagrangian particle tracking model. Millions of neutrally buoyant particles representing coral spawn and larvae were released from 19 major islands and one lagoon every spring from 2012 to 2015. The model results were compared to satellite data, in situ observation, and surface drifters to confirm reasonable agreement. The connectivity matrix across the archipelago was quantified using Lagrangian probability density functions of the modeled particle displacement. Most particles remained near the release areas, while some traveled long distances by the northeastward drifting Kuroshio, leading to notable interisland coral transport across the archipelago that promotes interisland connectivity. A possible mechanism was examined by analyzing the transition from coastal to pelagic transport of the particles released from the Yaeyama Islands, the southernmost area of the archipelago. The Kuroshio trapped the particles released from the northern coast of the islands with considerable temporal variability in the entrainment rate. By contrast, particles released from the southern coast are markedly affected by the eastward current around the release sites, which significantly reduces their entrainment in the Kuroshio and, thus, long‐distance transport. Some entrained particles were expelled abruptly from the Kuroshio, trapped by the southwestward drifting Kuroshio Counter Current developed between the Kuroshio and the archipelago, and subsequently transported eastward to the islands.
キーワード
Kuroshio
Nansei Archipelago
coral spawn and larvae
coastal connectivity
interisland connectivity
ROMS
Lagrangian particle model
カテゴリ
工学研究科
学術雑誌論文
権利
An edited version of this paper was published by AGU. Copyright 2018 American Geophysical Union
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資源タイプ
journal article
言語
English (英語)
ISSN
2169-9275
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eISSN
2169-9291
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NCID
AA10819754
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関連情報
DOI
https://doi.org/10.1029/2018JC014017
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