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The importance of the northern Satsunan area as a spawning and nursery ground of small pelagic migratory fish

Research Project

Project/Area Number 20K06186
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 40030:Aquatic bioproduction science-related
Research InstitutionKagoshima University

Principal Investigator

Kume Gen  鹿児島大学, 農水産獣医学域水産学系, 准教授 (00554263)

Co-Investigator(Kenkyū-buntansha) 一宮 睦雄  熊本県立大学, 環境共生学部, 教授 (30601918)
小針 統  鹿児島大学, 農水産獣医学域水産学系, 教授 (60336328)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords北部薩南海域 / 湧昇 / 黒潮 / 多獲性浮魚類 / マアジ / マサバ / カタクチイワシ / 食性 / 成長 / 魚種交代 / 回遊性魚類 / 初期生活史 / 低次生産構造
Outline of Research at the Start

2015年以降実施してきた魚類の卵・稚仔調査から、日本の沿岸域で漁獲される多くの回遊性魚類が、鹿児島湾の湾口部を中心とした北部薩南海域を重要な産卵場、成育場として利用していることが明らかとなった。これは、回遊性魚類の主要な産卵場が遠く離れた黒潮上流域である東シナ海に存在し、仔稚魚が黒潮、対馬海流を利用して日本沿岸域へと加入し、漁業資源を支えているというこれまでの定説を覆すものである。本研究では、マアジ、マサバ、クロマグロの初期生活史特性を海域間で比較することにより、北部薩南海域の低次生産力の高さを証明する。その上で、高い生産力を支えているこの海域に特有の低次生産構造について明らかにする。

Outline of Final Research Achievements

To evaluate the importance of the northern Satsunan area as a spawning and nursery ground for small pelagic migratory fish (Engraulis japonicus, Trachurus japonicus, and Scomber japonicus), we investigated their early life history characteristics. E. japonicus larvae were dominantly occurred. The number of S. japonicus larvae started to increase in 2016, corresponding to the population dynamics of the Pacific stock of the species, which has shown increasing trends in recent years. Densities of larvae were consistently higher in the bay (upwelling area) than in the strait (non-upwelling area). Their diet clearly differed among species. In addition to copepods, S. japonicus larvae fed substantially on appendicularians. The trophic pathway involving appendicularians might support the feeding habits of S. japonicus, promoting its coexistence with other species. Our results provide insights for the fisheries management for small pelagic migratory fish in the Japanese Pacific coastal area.

Academic Significance and Societal Importance of the Research Achievements

資源高水準期になると、北部薩南海域にはマイワシの最大規模の産卵場が形成されることが知られている。マサバでも同様の傾向がみられることが分かった。本海域はカタクチイワシ、マアジ、ゴマサバ、資源高水準期のマサバ、マイワシといった多獲性浮魚類の重要な産卵場として利用されていることが明らかとなった。
太平洋沿岸域において黒潮の上流に位置し、かつ、従来考えられてきた東シナ海の主要な産卵場に比べて近接する北部薩南海域は、我が国の太平洋沿岸域の水産資源を支える鍵となる海域である。今回得られた成果は、今後我が国の太平洋沿岸の多獲性浮魚類の資源管理施策を講じていく上で重要な知見であり、学術的かつ社会的意義は大きい。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (33 results)

All 2023 2022 2021 2020

All Journal Article (12 results) (of which Peer Reviewed: 12 results,  Open Access: 3 results) Presentation (21 results) (of which Int'l Joint Research: 4 results,  Invited: 1 results)

  • [Journal Article] Trophic sources and pathways of mesozooplankton and fish larvae in the Kuroshio and its neighboring waters based on stable isotope ratios of carbon and nitrogen2023

    • Author(s)
      Kobari Toru、Shinyashiki Maharu、Saito Kanako、Kume Gen、Ichinomiya Mutsuo、Komorita Tomohiro、Miyamoto Hiroomi、Okazaki Yuji、Makino Fumihiro、Fukuda Ryuji、Hyodo Fujio、Noguchi-Aita Maki
    • Journal Title

      Progress in Oceanography

      Volume: 210 Pages: 102952-102952

    • DOI

      10.1016/j.pocean.2022.102952

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 高分解能沿岸海洋モデルの粒子追跡による黒潮への黒潮内側域水塊移流の評価2023

    • Author(s)
      数野真,加古真一郎,中村啓彦,山城徹,仁科文子,久米元,小針統
    • Journal Title

      水産海洋研究

      Volume: 86 Pages: 153-165

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Growth activity of fish larvae appearing in the Kuroshio and its neighbouring waters2022

    • Author(s)
      眞子 裕友、小針 統、一宮 睦雄、小森田 智大、幅野 明正、東 隆文、久米 元
    • Journal Title

      Bulletin of the Plankton Society of Japan

      Volume: 69 Issue: 2 Pages: 93-101

    • DOI

      10.24763/bpsj.69.2_93

    • ISSN
      0387-8961, 2434-0839
    • Year and Date
      2022-08-25
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Prey of whale sharks visiting the northern Satsunan area (western North Pacific Ocean)2022

    • Author(s)
      眞子 裕友、米山 和良、土田 洋之、小針 統、久米 元、兵藤 不二夫、野口 真希、一宮 睦雄、小森田 智大、河邊 玲、中村 乙水
    • Journal Title

      Bulletin of the Plankton Society of Japan

      Volume: 69 Issue: 1 Pages: 18-24

    • DOI

      10.24763/bpsj.69.1_18

    • ISSN
      0387-8961, 2434-0839
    • Year and Date
      2022-02-25
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Seasonal influence of intrusion from the Kuroshio Current on microplankton biomass and community structure in the northern Satsunan area, western Japan2022

    • Author(s)
      Ichinomiya Mutsuo、Nomiya Takehito、Komorita Tomohiro、Kobari Toru、Kume Gen、Habano Akimasa、Arita Yoichi、Makino Fumihiro
    • Journal Title

      Journal of Marine Systems

      Volume: 234 Pages: 103767-103767

    • DOI

      10.1016/j.jmarsys.2022.103767

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spring phytoplankton blooms in the Northern Satsunan region, Japan, stimulated by the intrusion of Kuroshio Branch water2021

    • Author(s)
      Komorita Tomohiro、Kobari Toru、Kume Gen、Sawada Daiki、Nagata Takuya、Habano Akimasa、Arita Yoichi、Makino Fumihiro、Ichinomiya Mutsuo
    • Journal Title

      Estuarine, Coastal and Shelf Science

      Volume: 259 Pages: 107472-107472

    • DOI

      10.1016/j.ecss.2021.107472

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Distribution, Feeding Habits, and Growth of Chub Mackerel, Scomber japonicus, Larvae During a High-Stock Period in the Northern Satsunan Area, Southern Japan2021

    • Author(s)
      Kume Gen、Shigemura Taichi、Okanishi Masahiro、Hirai Junya、Shiozaki Kazuhiro、Ichinomiya Mutsuo、Komorita Tomohiro、Habano Akimasa、Makino Fumihiro、Kobari Toru
    • Journal Title

      Frontiers in Marine Science

      Volume: 8 Pages: 725227-725227

    • DOI

      10.3389/fmars.2021.725227

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Metabarcoding analysis of trophic sources and linkages in the plankton community of the Kuroshio and neighboring waters2021

    • Author(s)
      Kobari Toru、Tokumo Yusuke、Sato Ibuki、Kume Gen、Hirai Junya
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 23265-23265

    • DOI

      10.1038/s41598-021-02083-8

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Diet niche segregation of co-occurring larval stages of mesopelagic and commercially important fishes in the Osumi Strait assessed through morphological, DNA metabarcoding, and stable isotope analyses2021

    • Author(s)
      Kume Gen、Kobari Toru、Hirai Junya、Kuroda Hiroumi、Takeda Tsutomu、Ichinomiya Mutsuo、Komorita Tomohiro、Aita-Noguchi Maki、Hyodo Fujio
    • Journal Title

      Marine Biology

      Volume: 168 Issue: 1

    • DOI

      10.1007/s00227-020-03810-x

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Temporal and spatial variability of mesozooplankton community in the northern Satsunan area, southern Kyushu2020

    • Author(s)
      小針統、山崎朱音、遠藤有紀、久米元、小森田智大、一宮睦雄、幅野明正、有田洋一、牧野文洋
    • Journal Title

      Oceanography in Japan

      Volume: 29 Issue: 6 Pages: 217-232

    • DOI

      10.5928/kaiyou.29.6_217

    • NAID

      130008131929

    • ISSN
      0916-8362, 2186-3105
    • Year and Date
      2020-11-15
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Feeding habits of the mesopelagic fish Sigmops gracilis larvae in the Kuroshio and its adjacent water, southern Japan2020

    • Author(s)
      Yoshinaga Shohei、Kobari Toru、Tanonaka Norika、Yamanoue Kaori、Kume Gen
    • Journal Title

      Ichthyological Research

      Volume: 68 Issue: 1 Pages: 171-176

    • DOI

      10.1007/s10228-020-00760-8

    • NAID

      40022462134

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Feeding habits of the skinnycheek lanternfish [Benthosema pterotum (Alcock, 1890)] in Kagoshima Bay, southern Japan2020

    • Author(s)
      Habano Akimasa、Kobari Toru、Ohbayashi Wataru、Kume Gen
    • Journal Title

      Ichthyological Research

      Volume: 68 Issue: 1 Pages: 164-170

    • DOI

      10.1007/s10228-020-00758-2

    • NAID

      40022462130

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 東シナ海黒潮における動物プランクトンの脂肪酸組成2022

    • Author(s)
      石丸嶺央,久米元,福田隆二,中村啓彦,仁科文子,小針統
    • Organizer
      日本プランクトン学会・ベントス学会合同大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 黒潮域亜表層水の混合によって励起された植物プランクトンの増殖2022

    • Author(s)
      盛満彩加,久米元,小玉将史,一宮睦雄,小森田智大,福田隆二,中村啓彦,仁科文子,小針統
    • Organizer
      日本プランクトン学会・ベントス学会合同大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 北部薩南海域におけるマサバ仔魚の成長と摂餌要求量2022

    • Author(s)
      大庭嘉起,小針統,重村太一,塩崎一弘,一宮睦雄,小森田智大,久米元
    • Organizer
      日本水産学会秋季大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Protein synthetases activity of fish larvae appearing in the Kuroshio and its neighboring waters2022

    • Author(s)
      Yusuke Manako, Toru Kobari, Mutsuo Ichinomiya, Tomohiro Komorita, Akimasa Habano, Takafumi Azuma, Gen Kume
    • Organizer
      PICES-2022 Annual Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Growth and food requirement of chub mackerel Scomber japonicus larvae in the northern Satsunan area, southern Japan2022

    • Author(s)
      Hiroki Oba, Toru Kobari, Taichi Shigemura, Kazuhiro Shiozaki, Mutsuo Ichinomiya, Tomohiro Komorita, Gen Kume
    • Organizer
      PICES-2022 Annual Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Temporal changes of micoplankton community after the inflow of the Kuroshio branch current in the Northern Satsunan region, southern Japan during mixing period2022

    • Author(s)
      Tomohiro Komorita, Mutsuo Ichinomiya, Toru Kobari, Gen Kume, Shin'ichro Kako, Akimasa Habano, Yoichi Arita, Fumihiro Makino
    • Organizer
      PICES-2022 Annual Meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 魚類の産卵場,成育場としての鹿児島湾口部の重要性2022

    • Author(s)
      久米元
    • Organizer
      南九州水産海洋研究集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 魚類の産卵場および成育場としての北部薩南海域の重要性2022

    • Author(s)
      久米元,小針統,小玉将史,塩崎一弘,一宮睦雄,小森田智大,平井惇也
    • Organizer
      黒潮生態系とその変動を駆動する物理・化学・生物過程
    • Related Report
      2022 Annual Research Report
  • [Presentation] 水産資源を支える黒潮生態系の食物網構造と栄養動態2022

    • Author(s)
      小針統,久米元,中村啓彦,仁科文子,堤英輔,一宮睦雄,小森田智大,郭新宇,吉江直樹,長井健容,齊藤宏明,平井惇也
    • Organizer
      黒潮生態系とその変動を駆動する物理・化学・生物過程
    • Related Report
      2022 Annual Research Report
  • [Presentation] 北部薩南海域の春期ブルームにおける動物プランクトンのエネルギー経路2022

    • Author(s)
      谷口綾音,一宮睦雄,小森田智大,東隆文,牧野文洋,久米元,小針統
    • Organizer
      水産海洋学会九州沖縄地区合同シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] トカラ海域黒潮およびその周辺海域に出現する仔稚魚の群集構造2021

    • Author(s)
      眞子裕友 , 原愛理 , 山之上香織 , 東隆文 , 久米元 , 小針統
    • Organizer
      日本プランクトン学会・ベントス学会合同大会
    • Related Report
      2021 Research-status Report
  • [Presentation] メタバーコーディング解析を使った東シナ海黒潮におけるプランクトン食物網構造とエネルギー経路2021

    • Author(s)
      徳毛雄亮 , 小針統 , 佐藤伊吹 , 久米元 , 平井惇也
    • Organizer
      日本プランクトン学会・ベントス学会合同大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 黒潮上流域におけるネズミギス仔魚の成長様式2021

    • Author(s)
      草野智子 , 久米元 , 小針統
    • Organizer
      日本プランクトン学会・ベントス学会合同大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 春季の大隅分枝流域におけるマイクロプランクトン現存量2021

    • Author(s)
      一宮睦雄 , 原田美咲 , 小森田智大 , 久米元 , 小針統 , 幅野明正 , 牧野文洋
    • Organizer
      日本プランクトン学会・ベントス学会合同大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 鹿児島湾における黒潮暖水舌の流入が湾口部の春季ブルームに与える影響2021

    • Author(s)
      小森田智大 , 一宮睦雄 , 久米元 , 小針統
    • Organizer
      日本プランクトン学会・ベントス学会合同大会
    • Related Report
      2021 Research-status Report
  • [Presentation] What happened to mesozooplankton community during the phase of fish species alternation in the neighboring waters of the Kuroshio?2021

    • Author(s)
      Toru Kobari , Yuichi Nishikawa , Mutsuo Ichinomiya , Tomohiro Komorita , Akimasa Habano , Fumihiro Makino , Gen Kume
    • Organizer
      PICES-2021 Annual Meeting
    • Related Report
      2021 Research-status Report
  • [Presentation] Community structure of fish larvae associated with advections of the Kuroshio and its neighboring waters2021

    • Author(s)
      Yusuke Manako , Airi Hara , Kaori Yamanoue , Takafumi Azuma , Gen Kume , Toru Kobari
    • Organizer
      PICES-2021 Annual Meeting
    • Related Report
      2021 Research-status Report
  • [Presentation] How to adapt growth and productivity of fish larvae to the Kuroshio2021

    • Author(s)
      Tomoko Kusano , Toru Kobari , Takafumi Azuma , Gen Kume
    • Organizer
      PICES-2021 Annual Meeting
    • Related Report
      2021 Research-status Report
  • [Presentation] Comparison of plankton community structure, standing stocks and productivity along the Kuroshio at the Tokara Strait2021

    • Author(s)
      Mihoko Abe , Toru Kobari , Gen Kume , Naoki Yoshie , Daisuke Hasegawa , Ayako Nishina , Hirohiko Nakamura
    • Organizer
      PICES-2021 Annual Meeting
    • Related Report
      2021 Research-status Report
  • [Presentation] Distribution, feeding habits, and growth of chub mackerel, Scomber japonicus, larvae during a high-stock period in the northern Satsunan area, southern Japan2021

    • Author(s)
      Gen Kume , Taichi Shigemura , Masahiro Okanishi , Junya Hirai , Kazuhiro Shiozaki , Mutsuo Ichinomiya , Tomohiro Komorita , Akimasa Habano , Fumihiro Makino , Toru Kobari
    • Organizer
      PICES-2021 Annual Meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] 鹿児島湾口域における春季ブルームの珪藻細胞密度と種組成2020

    • Author(s)
      一宮睦雄、野宮岳人、小森田智大、久米元、小針統
    • Organizer
      日本プランクトン学会・ベントス学会合同大会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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