Influence of transported hypoxic water on macrobenthic community on a sandy region

• Project/Area Number: 18K11625
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 63010:Environmental dynamic analysis-related
• Research Institution: Prefectural University of Kumamoto
• Principal Investigator: Komorita Tomohiro 熊本県立大学, 環境共生学部, 准教授 (10554470)
• Co-Investigator(Kenkyū-buntansha): 田井 明 九州大学, 工学研究院, 准教授 (20585921) ; 山田 勝雅 熊本大学, くまもと水循環・減災研究教育センター, 准教授 (80569195) ; 折田 亮 佐賀大学, 農学部, 助教 (80800143)
• Project Period (FY): 2018-04-01 – 2021-03-31
• Project Status: Completed (Fiscal Year 2020)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
• Keywords: 貧酸素水 / 有明海 / 底生動物 / ヒメカノコアサリ / 二枚貝 / 内湾 / 酸素消費 / 物質循環 / 貧酸素 / 沿岸 / 諫早湾

Outline of Final Research Achievements

We evaluated the effect of advection of hypoxic water on macro benthic community in the Ariake Bay, Japan, where hypoxic water does not occur. In the non-occurrence area, biodiversity was higher than in the occurrence area, and although the period of hypoxia was about one-fourth, the diversity tended to decrease significantly. Since the density of the dominant species, Timoclea micra, was more stable in the area where hypoxia occurred, it is considered that the activity of predators was greatly restricted by hypoxic water.

Academic Significance and Societal Importance of the Research Achievements

貧酸素水が移流することで貧酸素水が発生しない海域の底生動物群集の多様度を変動させることを示した。貧酸素水が発生しない海域の底生動物群集は貧酸素水に対する感受性が高いことを明らかにした。
貧酸素海域の優占種であるヒメカノコアサリの個体群動態の結果から、貧酸素水の発生海域においては貧酸素水の非発生海域と比べて密度が安定する傾向が示された。これは、ヒメカノコアサリ自体が貧酸素水に対する耐性を有するとともに、ヒメカノコアサリの捕食者が貧酸素水の影響を受けて活動が低下した可能性を示す。
このように本研究では、貧酸素水が底生動物の量を減らすだけではなく、群集構造を大きく変える可能性を指摘した。

Research Products

• [Int'l Joint Research] Parma University(イタリア)
• [Int'l Joint Research] Kasesart University(タイ)
• [Int'l Joint Research] Parma University(イタリア)
• [Journal Article] Population dynamics of a hypoxia-tolerant bivalve: a comparison between two sites in the inner part of Ariake Bay, Japan (2021)
  • Author(s): Ryo Orita, Tomohiro Komorita, Mutsuo Ichinomiya & Hiroaki Tsutsumi
  • Journal Title: Plankton & Benthos Research Volume: 出版中
  • Peer Reviewed / Open Access
• [Journal Article] The effects of photoperiod and temperature on embryonic diapause termination in the hermit crab Pagurus nigrofascia (2020)
  • Author(s): Mishima, S., S. Kobayashi, K. Yamada, Y. Henmi
  • Journal Title: Plankton & Benthos Research Volume: in press
  • NAID: 130008050977
  • Peer Reviewed
• [Journal Article] Traits database of tidal flat macrobenthos along the Northwest Pacific coast of Japan (2020)
  • Author(s): Yamakita Takehisa、Yamada Katsumasa、Yokooka Hiroyuki、Kanaya Gen
  • Journal Title: Ecological Research Volume: 35 Issue: 6 Pages: 1062-1072
  • DOI: 10.1111/1440-1703.12183
  • Peer Reviewed
• [Journal Article] Morphological variations among distinct genotypes of the pen shell Atrina pectinata in Japan and Korea (2019)
  • Author(s): Yamada, K., K. Hashimoto, T. Sasaki, M. Kobayashi, Y. Henmi, M. Sekino
  • Journal Title: roceedings of 2019 International Conference on climate change, disaster management and environmental sustainability Volume: 1 Pages: 808-814
  • Peer Reviewed / Open Access
• [Journal Article] Longitudinal distribution patterns of brachyuran crab (Crustacea, Decapoda) community along tidal rivers flowing into the inner area of Ariake Bay (2019)
  • Author(s): Kobayashi, S., K. Yamada, K. Yoshino, Y. Henmi
  • Journal Title: Proceedings of 2019 International Conference on climate change, disaster management and environmental sustainability Volume: 1 Pages: 523-532
  • Peer Reviewed / Open Access
• [Journal Article] Comparison of trophic magnification factors of PCBs and PBDEs in Tokyo Bay based on nitrogen isotope ratios in bulk nitrogen and amino acids (2019)
  • Author(s): Kobayashi Jun、Yoshimoto Miki、Yamada Katsumasa、Okamura Kazumaro、Sakurai Takeo
  • Journal Title: Chemosphere Volume: 226 Pages: 220-228
  • DOI: 10.1016/j.chemosphere.2019.03.133
  • Peer Reviewed
• [Journal Article] Influence of water discharged from a reservoir on reclaimed land into Isahaya Bay (Kyushu, Japan) on the regeneration of NH4+ in the water column (2019)
  • Author(s): H Takasu, T Komorita, T Okano, M Kuwahara, K Hoshimoto
  • Journal Title: Journal of Oceanography Volume: in press Issue: 4 Pages: 1-6
  • DOI: 10.1007/s10872-018-0503-z
  • Peer Reviewed
• [Journal Article] Differences in the damage caused by hypoxia to the macrobenthic communities in source regions of hypoxic water and in regions with advected hypoxic water (2018)
  • Author(s): S Ishimatsu, T Komorita, R Orita, H Tsutsumi
  • Journal Title: Journal of Oceanography Volume: 74 Issue: 6 Pages: 607-617
  • DOI: 10.1007/s10872-018-0485-x
  • Peer Reviewed
• [Journal Article] 生産量より見積もったホトトギスガイによる基礎生産者への摂餌圧の定量的評価 (2018)
  • Author(s): 小森田智大・猪島頌太・堤裕昭
  • Journal Title: Laguna Volume: 25 Pages: 105-110
  • Peer Reviewed / Open Access
• [Journal Article] Combined Effects of Drift Macroalgal Bloom and Warming on Occurrence and Intensity of Diel-Cycling Hypoxia in a Eutrophic Coastal Lagoon (2018)
  • Author(s): Miyamoto Yasushi、Nakano Tadashi、Yamada Katsumasa、Hatakeyama Keisuke、Hamaguchi Masami
  • Journal Title: Estuaries and Coasts Volume: 42 Issue: 2 Pages: 494-503
  • DOI: 10.1007/s12237-018-0484-6
  • Peer Reviewed
• [Journal Article] Does suspended matters drained from Isahaya freshwater reservoir cause organic enrichment of northern Ariake Bay? (2018)
  • Author(s): Yoshino, K., K. Yamada, K. Kimura
  • Journal Title: Journal of Oceanography Volume: 74 Issue: 6 Pages: 619-628
  • DOI: 10.1007/s10872-018-0486-9
• [Journal Article] Lineage specific detection of the scaly form of the pen shell Atrina spp. by a loop-mediated isothermal amplification method (2018)
  • Author(s): Hashimoto K, Yamada K, Nagae A, Matsuyama Y
  • Journal Title: Fisheries Science Volume: 84 Issue: 5 Pages: 837-848
  • DOI: 10.1007/s12562-018-1231-4
  • NAID: 40021650855
  • Peer Reviewed
• [Journal Article] 善か悪か？：浅場域で増大するホトトギスガイ個体群の生態系への影響と研究の動向 (2018)
  • Author(s): 山田勝雅, 倉田健悟
  • Journal Title: Laguna Volume: 25 Pages: 55-63
  • Peer Reviewed
• [Journal Article] 中海におけるホトトギスガイのマットと大型海藻マットの空間形成 (2018)
  • Author(s): 山田勝雅, 宮本 康, 畠山恵介
  • Journal Title: Laguna Volume: 25 Pages: 81-92
  • Peer Reviewed
• [Journal Article] 八代海球磨川河口干潟における底生動物相の時空間変化：ホトトギスガイのマット形成が群集構造に与える影響 (2018)
  • Author(s): 14)北岡 匠, 山田勝雅, 逸見泰久
  • Journal Title: Laguna Volume: 25 Pages: 81-92
  • Peer Reviewed
• [Presentation] 諫早湾の現地観測データに基づく潮流変動特性について (2020)
  • Author(s): 許斐 聖・田井 明・速水 祐一
  • Organizer: 令和２年度土木学会西部支部研究発表会
• [Presentation] 新規なアゲマキガイ保護区の検証;干満差を利用した澪筋維持施設の活用 (2020)
  • Author(s): 折田亮・川村嘉応・田村匡・大村優奈・木村圭・加藤治・小林元太
  • Organizer: 令和2年度 日本水産学会 春季大会
• [Presentation] 水産有用二枚貝類の粒状排泄物に含まれる生元素含量の特徴： メタデータ解析によるアプローチ (2019)
  • Author(s): 小森田智大・ダニエレ ニッツォリ・マルコ バルトリ・ピエールルイージ ビアローリ
  • Organizer: 日本ベントス学会日本プランクトン学会合同大会
• [Presentation] Characterization of the organic matter of biodeposits derived from marine aquaculture bivalves: a meta-analysis approach (2019)
  • Author(s): T Komorita, D Nizzoli, P Viaroli
  • Organizer: The 4th Asian Marine Biology Symposium
  • Int'l Joint Research
• [Presentation] Morphological variations among distinct genotypes of the pen shell Atrina pectinata in Japan and Korea (2019)
  • Author(s): Yamada K., K. Hashimoto, T. Sasaki, M. Kobayashi, Y. Henmi, M. Sekino.
  • Organizer: CWMD International Conference 2019
  • Int'l Joint Research
• [Presentation] 海の貧酸素化がベントス群集に与える影響;直接効果と間接効果 (2019)
  • Author(s): 折田亮
  • Organizer: 日本動物学会・九州沖縄植物学会・日本生態学会 合同佐賀例会
  • Invited
• [Presentation] Analysis of Resuspension Phenomenon Using Coupled Wave, Current and Sediment Transport Model in the Ariake Sea (2019)
  • Author(s): Akira TAI
  • Organizer: st International Conference on Science, Technology and Agriculture Research
  • Int'l Joint Research
• [Presentation] 波浪・潮流カップリング底質輸送シミュレーションによる有明海の再懸濁現象の再現 (2019)
  • Author(s): 田井明,深野 翔太
  • Organizer: 日本流体力学会年会2019
• [Presentation] Community structure of benthic infauna at tidal flats ecosystem of Ariake Bay, Kyushu, Japan: focusing on turnover and nestedness components of β diversity (2018)
  • Author(s): Yamada K., T. Komorita, Y. Henmi
  • Organizer: AMBL90 - Biodiversity, Ecology and Evolution
  • Int'l Joint Research
• [Presentation] 機能的多様性の空間変異パターン：荒尾干潟の底生生物群集を事例に (2018)
  • Author(s): 山田勝雅, 逸見泰久, 鈴木孝男, 吉野健児, 森 敬介, 石田 惣, 竹下文雄, 前川 匠, 多留聖典, 渡部哲也, 田中正敦, 松浦 弘, 比留間美帆, 青木美鈴, 小材隆文, 山北剛久
  • Organizer: 第66回日本生態学会
• [Presentation] 貧酸素水塊の移入に対するベントス群集の応答：群集形成パターンの評価 (2018)
  • Author(s): 山田勝雅, 小森田智大, 宮本 康, 石松将武, Wachirah Jaingam, 堤 裕昭, 逸見泰久
  • Organizer: 2018年度日本プランクトン学会・日本ベントス学会合同大会
• [Presentation] 干潟漁場生態系の底生生物群集の集合規則：入れ子構造と種の入れ替わり (2018)
  • Author(s): 山田勝雅, 小森田智大, 竹中理佐, 相澤章仁, 諸熊孝典, 黒木善之, 内川純一
  • Organizer: 第65回日本生態学会