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Sample Design: Piscivorous Waterbird Colony Assessment - Oregon State University
  • ID: 16451
  • State: Finalized
  • Owner: Ken Collis
  • Collaborator(s): Timothy Lawes
  • Spatial Design Category: Census: Full
Basics

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

Data will be collected to 1) Locate piscivorous waterbird colonies in the Columbia River basin, 2) Assess the distribution and size of piscivorous waterbird colonies in the Columbia River basin below the confluence with the Snake River, 3) Estimate size of piscivorous waterbird colonies in the Columbia River basin below the confluence with the Snake River, 3) calculate colony-specific predation rates of piscivorous waterbirds on juvenile salmonids in the Columbia River basin below the confluence with the Snake River, 4) Assess cumulative/system-wide predation impacts on juvenile salmonids by piscivorous colonial waterbirds in the Columbia River basin below the confluence with the Snake River.


To complete the work elements identified in our 2021 BPA SOW, we need to conduct multiple boat- and ground-based surveys to accurately estimate peak colony size and to conduct PIT tag work at each colony.

Start Year

2020

End Year

Study Plan

Avian Predation on Juvenile Salmonids in the Columbia River Estuary v2.0

Data Repositories

Focal Species

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Photos

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Documents

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Area of Inference

Mainstem Reaches and Dams: Bonneville Dam to The Dalles Dam
Mainstem Reaches and Dams: The Dalles Dam to John Day Dam
Mainstem Reaches and Dams: John Day Dam to McNary Dam
Mainstem Reaches and Dams: McNary Dam to Confluence of Snake and Columbia River
Lower Columbia Estuary (LCREP): Upper Tidal Flood Plain Basin
Lower Columbia Estuary (LCREP): Middle Tidal Flood Plain Basin
Lower Columbia Estuary (LCREP): Volcanics Current Reversal
Lower Columbia Estuary (LCREP): Coastal Uplands Salinity Gradient
Lower Columbia Estuary (LCREP): Coastal Lowlands Entrance-Mixing
Lower Columbia Estuary (LCREP): Western Cascades Tributary Confluences
Lower Columbia Estuary (LCREP): Western Gorge
Lower Columbia Estuary (LCREP): Tidal Flood Plain Basin Constriction

AOI Notes

AOI may be refine to point locations updated in for colonies.


Sample Sites
These are the unique sites that are participating in this sample design over the time period covered by the design.

Map of Sites

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Sampling Schedule
This section describes which sites are scheduled to be sampled in any given year, and (if applicable) the panel and stratum that the sample site belongs to.

Plan Description

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References and Download

Shapefile

Download

WorkStatementElements Referencing This Design

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Relevant acts include the Organic Act, 43 U.S.C. 31 et seq., 1879; Fish and Wildlife Coordination Act, 1934; Fish and Wildlife Act, 1956; Migratory Bird Treaty Act, 1918; Migratory Bird Conservation Act, 1900; Federal Land Policy and Management Act, 1976; Fish and Wildlife Improvement Act, 1978; Endangered Species Act, 1973; Marine Mammal Protection Act, 1972; Great Lakes Fishery Act, 1956; Nonindigenous Aquatic Nuisance Prevention and Control Act, 1990; Water Resources Development Act, 1990; and other authorizations conveyed to the U.S. Geological Survey.

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