Tim Blubaugh

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About Tim Blubaugh

Program: Natural Population Assessment

Current Projects:

1. Assisting with maintenance of PIT tag interrogation sites to assess entrainment of juvenile Pacific Lamprey in Umatilla River irrigation canals

2. Studying the effects of higher winter temperature on larval lamprey metamorphosis

3. Maintaining fish weirs used for monitoring of the Clackamas River Bull Trout Reintroduction Project and a Cougar Creek Bull Trout spawning population study

Past Projects:

1. Assessed the thermal effects of dams on white sturgeon incubation and early life stage rearing

2. Analyzed diets of native and non-natives fishes of the Columbia River

3. Radio telemetry and PIT tag studies

    a. Monitored lamprey upstream migration at the Lower Columbia dams to determine lamprey's ability to utilize existing passage systems

    b. Studied the migratory behavior, distribution, run timing and spawning success for Chinook, Coho and Steelhead in the Willamette River and its tributaries

Background:

Tim has previously worked for the US Fish and Wildlife Service at the Redbluff Fish and Wildlife Conservation Office

At CRFWCO since: 2020

From The Library

An evaluation of batch marking techniques for larval lampreys

Pacific Lamprey Entosphenus tridentatus is an ecologically important anadromous species native to the Pacific Northwest region and a species of concern in the Columbia River basin (Close et al., 2002, Wang and Schaller 2015). Pacific Lamprey have declined in distribution due to anthropogenic...

Clackamas River Bull Trout Reintroduction Project 2022 Annual Report

Bull Trout (Salvelinus confluentus) were last documented in the Clackamas River in 1963. Over four decades later, a 2007 feasibility study determined the Clackamas River Subbasin to be a promising candidate for Bull Trout reintroduction. In 2011, the first phase of a multi-agency reintroduction...

An evaluation of potential climate change impacts on the larval metamorphosis of Pacific Lamprey (Entosphenus tridentatus)

Larval Pacific Lamprey must undergo metamorphosis to reproduce. Physiological and environmental factors appear to impact when this metamorphosis occurs. In other lamprey species, larvae that reach a certain threshold for energy storage appear to initiate metamorphosis when exposed to cold winter...