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2022 年度 実績報告書

気候変動に伴う河川生態系のリスク評価:統計モデルとメソコスム実験の融合

研究課題

研究課題/領域番号 19H04314
研究機関北海道大学

研究代表者

G・MOLINOS JORGE  北海道大学, 北極域研究センター, 准教授 (30767281)

研究分担者 石山 信雄  地方独立行政法人北海道立総合研究機構, 森林研究本部 林業試験場, 主査 (50780821)
末吉 正尚  国立研究開発法人国立環境研究所, 生物多様性領域, 研究員 (70792927)
研究期間 (年度) 2019-04-01 – 2024-03-31
キーワード気候変動 / 河川生態系 / 水温予測 / 種間関係 / メソコスム実験
研究実績の概要

Planned visits of the monitoring sites for maintenance and data collection were conducted and the remaining FY2021 biological samples processed. Results from the year were presented at the 70th annual meeting of the Ecological Society of Japan.
A methodological protocol was developed for real-time temperature monitoring in rivers (submitted as a method paper). We also participated in work related to a field experiment examining combined effects of climate warming, herbicides, and eutrophication on aquatic food webs (submitted as a research paper).
Results from FY2021 were published in three international journals (Sci. Rep., Impact Factor 4.6; Ecol. Monogr., IF 6.1; Landsc. Ecol. Eng., IF 2). These papers provide novel insights onto the relationships between thermal habitats and the distribution and composition of aquatic species, in particular, the role of volcanic geology in supporting cold stable thermal regimes that host distinctive communities with larger proportions of cold-adapted species. Model projections showed that volcanic streams represent important features for conservation and management as they are more resilient to future climate change than non-volcanic streams (climate refugia).
Finally, an international collaborative paper was also published (Environ. Pollut; IF 8.9) reporting on a meta-analysis of aquatic ecosystem recovery rates after restoration highlighting the value of investing in long-term aquatic ecosystem monitoring and the need to consider multiple biotic and abiotic metrics when assessing ecosystem restoration success.

現在までの達成度 (区分)
現在までの達成度 (区分)

2: おおむね順調に進展している

理由

Despite COVID-19 restrictions continued to condition planned field work during this year, requiring some adjustments to the original schedule, the general objectives set by the project for the year were met.
Monitored catchments were visited for site maintenance and retrieval of water and air temperature data collected over the year, and the project databases were updated accordingly. The processing of the remaining (FY2021) biological samples (taxonomic identification of benthic invertebrates) was also completed.
Mesocosm experiments were conducted with project partners to investigate the effects of warming/heatwaves, nutrient, and herbicide pollution on aquatic biodiversity.
Results were disseminated as planned through national and international conferences as well as the publication of four papers in international peer-review journals.

今後の研究の推進方策

FY2023 will be the last year of the project and consequently we will focus on finalizing ongoing analysis of the data collected over the entire project, dissemination of results and submission of papers for publication. We will continue to complement our work with ongoing collaborations with our national and international partners.

  • 研究成果

    (5件)

すべて 2023 2022 その他

すべて 国際共同研究 (1件) 雑誌論文 (3件) (うち国際共著 3件、 査読あり 3件、 オープンアクセス 2件) 学会発表 (1件)

  • [国際共同研究] Institute of Hydrobiology - CAS(中国)

    • 国名
      中国
    • 外国機関名
      Institute of Hydrobiology - CAS
  • [雑誌論文] A meta-analysis of environmental responses to freshwater ecosystem restoration in China2023

    • 著者名/発表者名
      Fu Hong、Xu Jun、Zhang Huan、Garcia Molinos Jorge、Zhang Min、Klaar Megan、Brown Lee E.
    • 雑誌名

      Environmental Pollution

      巻: 316 ページ: 120589~120589

    • DOI

      10.1016/j.envpol.2022.120589

    • 査読あり / 国際共著
  • [雑誌論文] Timescale mediates the effects of environmental controls on water temperature in mid- to low-order streams2022

    • 著者名/発表者名
      Garcia Molinos Jorge、Nobuo Ishiyama、Sueyoshi Masanao、Nakamura Futoshi
    • 雑誌名

      Scientific Reports

      巻: 12 ページ: 12248

    • DOI

      10.1038/s41598-022-16318-9

    • 査読あり / オープンアクセス / 国際共著
  • [雑誌論文] Basin-scale spatiotemporal distribution of ayu Plecoglossus altivelis and its relationship with water temperature from summer growth to autumn spawning periods2022

    • 著者名/発表者名
      Nagayama Shigeya、Sueyoshi Masanao、Fujii Ryoji、Harada Morihiro
    • 雑誌名

      Landscape and Ecological Engineering

      巻: 19 ページ: 21~31

    • DOI

      10.1007/s11355-022-00509-7

    • 査読あり / オープンアクセス / 国際共著
  • [学会発表] Timescale mediates the effects of environmental controls on water temperature in mid- to low-order streams2023

    • 著者名/発表者名
      Garcia Molinos Jorge、Nobuo Ishiyama、Sueyoshi Masanao、Nakamura Futoshi
    • 学会等名
      70th Annual Meeting of Ecological Society of Japan

URL: 

公開日: 2024-12-25  

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