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Sample Design: Field Sampling in Mainstem Willamette - Oregon Department of Fish and Wildlife 2020, cloned for Study Design 1326
  • Version History: v1.0 Draft (4/21/2020)
This is an abbreviated view of sample design Field Sampling in Mainstem Willamette - Oregon Department of Fish and Wildlife 2020, cloned for Study Design 1326. To view this sample design in full you need to be logged in.

The details of this Sample Design, including all the parameters used to generate it, are included below. Sample designs must belong to a Study Plan.

Description

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We will follow fish and physical habitat surveys of the Willamette River mainstem following protocol from initial decadal sampling from 2011-2013 (Williams et al. 2014). We will stratify field sampling of the mainstem Willamette River into three sections (upper, middle, and lower), which is based on analysis of river geomorphology. Each 1-km slice of them mainstem river or floodplain slough within a river slice represents a single sampling location. Sites will be chosen randomly within each reach. We propose to sample 6 repeated 1-km slices in each section of the mainstem Willamette River. We will sample native and non-native fish in the entire mainstem Willamette River and the McKenzie River up to Trailbridge Dam. Sampling will be conducted from May to November 2020. Within each sample location, fish will be captured with a boat and backpack electrofisher by two netters. We will sample shallow microhabitats along the shore in each sampling site to represent the variety of nearshore habitats at each site. At the end of each sampling effort, fish will be identified to species and measured (length), and habitat characteristics of the sampling sites recorded.

Start Year

2020

End Year

2020

Study Plan

Field Sampling for Validation of Fish Community Monitoring Protocol in the Mainstem Willamette River v2.0

Data Repositories

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Area of Inference

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AOI Notes

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