What question did this study set out to answer?

Develop and apply a framework linking meso-scale hydraulic patch delineation with landscape metrics to evaluate physical in-stream habitat changes following dam removal and rapids restoration.

August 19, 2026Journal of EcohydraulicsOpen Access

Linking mesohabitat delineation and landscape metrics to assess the riverscape following multiple dam removals

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Authors

KSKerstin SchlobiesAalto University ERErik van RooijenAalto University DVDavide VanzoKarlsruhe Institute of Technology

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Implication

Restoration assessment reveals increased hydraulic heterogeneity and habitat diversity following dam removals across three river reaches, indicating improved riverscape structural quality.

Key Points

Develop and apply a framework linking meso-scale hydraulic patch delineation with landscape metrics to evaluate physical in-stream habitat changes following dam removal and rapids restoration.
Measured flow velocity and water depth with an Acoustic Doppler Current Profiler across three river reaches under comparable pre- and post-restoration discharge.
Interpolated hydraulic data and delineated contiguous, homogeneous patches using hierarchical clustering and deterministic classification.
Evaluated habitat quality across reaches using nine landscape metrics representing hydraulic heterogeneity, spatial connectedness, and habitat diversity.
Incorporating restored rapids as additional mesohabitats increased metric values in 25 of 27 metric–reach combinations compared to pre-restoration baselines.
Hydraulic heterogeneity increased by 25% to 47% post-restoration across the evaluated reaches.
Relative habitat richness increased by +0.10 in each reach, representing the addition of one distinct habitat class per reach.

Cite This Study

Schlobies et al. (2026) studied this question.

synapsesocial.com/papers/6a85633c03308d306e2d63c6 https://doi.org/10.1080/24705357.2026.2716036

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Implication

Restoration assessment reveals increased hydraulic heterogeneity and habitat diversity following dam removals across three river reaches, indicating improved riverscape structural quality.

Linking mesohabitat delineation and landscape metrics to assess the riverscape following multiple dam removals

Discussion

Member takes

Implication

Key Points

Cite This Study

Linking mesohabitat delineation and landscape metrics to assess the riverscape following multiple dam removals

Discussion

Member takes

Implication

Key Points

Cite This Study

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