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2022 Fiscal Year Final Research Report

Functions of salt marshes maintaining diverse microbenthic invertebrates: an field experimental approach

Research Project

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Project/Area Number 19K15896
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Kawaida Shun  島根大学, 学術研究院環境システム科学系, 助教 (60743581)

Project Period (FY) 2019-04-01 – 2023-03-31
Keywords塩性湿地 / 底生動物 / 群集構造 / 餌環境 / 立体構造 / 成長率 / 安定同位体比 / セルロース分解酵素
Outline of Final Research Achievements

This study aimed to assess the function of estuarine salt marshes as a habitat of macrobenthic invertebrates using multiple field experiments. The results showed that diverse macrobenthic invertebrates including some endangered species inhabit salt marshes. The field experiments indicated that the physical structure of salt marsh vegetation would facilitate high species diversity and densities of intertidal epifaunal populations as providing excellent shelter from predators. Furthermore, salt marshes could be a general feeding ground for some gastropods. These findings suggested that the multiple function of salt marshes as a shelter and/or feeding ground play an important role in maintaining the diversity of coastal macrobenthic invertebrates.

Free Research Field

海洋生態学

Academic Significance and Societal Importance of the Research Achievements

耐塩性の抽水植物が生育する塩性湿地は,絶滅危惧種を含む多様なベントスの重要な生息場となっている。しかし,塩性湿地ではこのような重要性に関する定量的な知見は極めて限られており,世界的に破壊の進む塩性湿地の保全活動を推進するうえで大きな障壁となっている。このような状況に対し,本研究はベントスの隠れ家・餌場としての塩性湿地の機能を多角的な野外実験により数値的に明らかにしたものであり,塩性湿地を対象とした保護区の設定や開発案件における保全上の配慮を促すための定量的なエビデンスとなることが期待される。

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Published: 2024-01-30  

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