| アイテムタイプ |
デフォルト(1) |
| 公開日 |
2026-01-28 |
| タイトル |
|
|
タイトル |
Local environmental changes boost predation risk in forage fish: application to the sand lance in the eastern Seto Inland Sea |
|
言語 |
en |
| 作成者 |
Taniguchi, Aoi
Yoneda, Michio
Nishikawa, Tetsuya
Nakamura, Masahiro
Morioka, Taizo
Tomiyama, Takeshi
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
© 2025 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ ). |
|
言語 |
en |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Bottom-up effect |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Forage fish |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Ocean warming |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Piscivorous fish |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Population dynamics |
| 主題 |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Top-down effect |
| 内容記述 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Changes in environmental conditions can modify the strength of prey-predator interactions in marine ecosystems by altering top-down and bottom-up drivers. This study examined potential top-down effects on the biomass of a forage fish, the sand lance Ammodytes japonicus, in oligotrophic waters of the eastern Seto Inland Sea, Japan. The biomass of sand lance has decreased over the last several decades, possibly due to reduced prey availability associated with declining nutrient levels. We analyzed 30 years of catch data for major omnivorous and piscivorous fish species in relation to temperature fluctuations. Additionally, laboratory experiments were conducted to test whether food manipulations simulating bottom-up trophic effects could amplify top-down impacts. The abundance of 14 predator fish species has shifted to high levels in sand lance habitats since 2016, coinciding with rising temperatures. Although nutritional status of sand lance did not significantly affect predation susceptibility, sand lance individuals with lower nutritional status spent more time searching for prey prior to estivation. These results suggest that warming-induced shifts in predator distribution within sand lance habitats may increase predation risk by creating more frequent predator encounters. This mechanism partly explains the sharp decline in sand lance biomass observed since 2017. Our findings highlight the importance of understanding how environmental changes influence predator-prey dynamics to better predict the sustainability of local populations and trophic structures in marine ecosystems. |
|
言語 |
en |
| 内容記述 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
This research was partly supported by the Sasakawa Scientific Research Grant from the Japan Science Society (2020-4067) to A.T., by the research grant of restoration and creation in a coastal environment in Osaka bay area (040002, 050002) to T.T, M.Y., and T.N., and by JSPS KAKENHI Grant Number 23K23686 to T.T. and M.Y. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Elsevier |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1016/j.marenvres.2025.107827 |
| 助成情報 |
|
|
|
助成機関識別子タイプ |
Crossref Funder |
|
|
助成機関識別子タイプURI |
https://doi.org/10.13039/501100001691 |
|
|
助成機関名 |
日本学術振興会 |
|
|
言語 |
ja |
|
|
助成機関名 |
Japan Society for the Promotion of Science |
|
|
言語 |
en |
|
|
研究課題番号 |
23K23686 |
|
|
研究課題番号URI |
https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-23K23686/ |
|
|
研究課題名 |
沿岸性魚類の繁殖投資量に及ぼす水温と餌料環境の複合的影響の評価 |
|
|
言語 |
ja |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
0141-1136 |
| 書誌情報 |
en : Marine Environmental Research
巻 215,
p. 104761,
ページ数 9,
発行日 2026-01-02
|
MarineEnvironmentalResearch_215_107827.pdf (2.5 MB)
