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Evaluate how sampling design and analytical modeling approaches influence multi-scale inferences of juvenile Chinook salmon responses to floodplain restoration.

August 19, 2026Restoration Ecology

Evaluation of sampling and analytical approaches to assess fish population responses to floodplain restoration

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Authors

SGStine GriepWenatchee Valley College CPCarlos M. PolivkaPacific Northwest Research Station KBKeith van den BroekWenatchee Valley College

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Implication

Comparative modeling study reveals that non-randomized sampling and nonlinear models effectively estimate juvenile Chinook salmon density, suggesting small-scale surveys can assess restoration.

Key Points

Evaluate how sampling design and analytical modeling approaches influence multi-scale inferences of juvenile Chinook salmon responses to floodplain restoration.
Assessed physical habitat attributes strongly correlated with juvenile Chinook Salmon (Oncorhynchus tshawytscha) density.
Compared linear and nonlinear modeling approaches to evaluate fish density estimates derived from randomized versus non-randomized sampling designs.
Constructed a density-weighted habitat diversity index to model reach-scale fish population sizes across subbasins.
Nonlinear models demonstrated superior fit to fish density and habitat data compared to linear modeling approaches.
Data simulation revealed that non-randomized sampling produced reach-scale density estimates comparable to randomized sampling designs.
Restored floodplains exhibited higher density-weighted habitat diversity, which positively correlated with larger reach-scale fish populations across subbasins.

Cite This Study

Griep et al. (2026) studied this question.

synapsesocial.com/papers/6a85642503308d306e2d7b84 https://doi.org/10.1111/rec.70528

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Implication

Comparative modeling study reveals that non-randomized sampling and nonlinear models effectively estimate juvenile Chinook salmon density, suggesting small-scale surveys can assess restoration.

Evaluation of sampling and analytical approaches to assess fish population responses to floodplain restoration

Discussion

Member takes

Implication

Key Points

Cite This Study

Evaluation of sampling and analytical approaches to assess fish population responses to floodplain restoration

Discussion

Member takes

Implication

Key Points

Cite This Study

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