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January 1, 2026Ecology and Civil EngineeringOpen Access

Relationships between river floods and benthic fauna at intertidal zones of the Kuma River system.

Akihiko Koyama Ryutei INUI Hiroki IYOOKA Tomoko MINAGAWA Kazuaki OHTSUKI Norio Onikura

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Key Points

This research examines the relationship between river floods and the occurrence patterns of benthic fauna over nine years.
Monitored 94 fixed points in the intertidal zones of the Kuma River from 2012 to 2020
Assessed changes in sediment composition and their impact on benthic fauna diversity
Categorized occurrence patterns of 55 benthic species
Found a significant correlation between large floods and decreases in benthic fauna diversity
Sediment shifts to finer particles were noted post-flooding, especially after heavy rainfall in July 2020
Identified five distinct occurrence patterns among benthic species related to flood impacts

Implication

Analysis reveals that floods impact benthic fauna diversity in intertidal zones, suggesting ecological shifts.

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Cite This Study

Koyama et al. (2026) studied this question.

synapsesocial.com/papers/699a9cc6482488d673cd27af https://doi.org/10.3825/ece.25-00023

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