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Publications

Below is a list of available WFRC peer reviewed and published science.

Filter Total Items: 2562

Differentiation of Colletotrichum species responsible for anthracnose of strawberry by arbitrarily primed PCR Differentiation of Colletotrichum species responsible for anthracnose of strawberry by arbitrarily primed PCR

A collection of 39 isolates of Colletotrichum acutatum, C. fragariae and C. gloeosporioides, which cause anthracnose on strawberry, was grouped into species based on the arbitrarily primed polymerase chain reaction (ap-PCR). All isolates used had previously been identified according to classical taxonomic morphology. Ap-PCR amplification of genomic DNA using four different primers...
Authors
S. Freeman, R. J. Rodriguez

Index of predation on juvenile salmonids by northern squawfish in the lower and middle Columbia River and in the lower Snake River Index of predation on juvenile salmonids by northern squawfish in the lower and middle Columbia River and in the lower Snake River

We developed a predation index to describe the relative magnitude of predation on juvenile salmonids by northern squawfish Ptychocheilus oregonensis throughout the lower and middle Columbia River and lower Snake River. The predation index was the product of an abundance index and a consumption index. We evaluated various catch indices and found that catch per unit effort best reflected...
Authors
David L. Ward, James H. Petersen, John J. Loch

Prerelease disease treatment with potassium permanganate for Fall Chinook salmon smolts Prerelease disease treatment with potassium permanganate for Fall Chinook salmon smolts

Standard potassium permanganate treatment (2 mg KMnO4/L freshwater for 1 h on three consecutive days) was applied to presmolts (parr) and smolts of fall chinook salmon (Oncorhynchus tshawytscha). Smoltification was determined by gill Na+,K+-ATPase activity. Treatments were conducted 73, 59, 45, 31, 16, and 2 d prior to full-strength seawater entry in aquaria. Potassium permanganate did...
Authors
Stanley D. Smith, Rowan W. Gould, Wally S. Zaugg, Lee W. Harrell, Conrad Mahnken

Mutational analyses of molecularly cloned satellite tobacco mosaic virus during serial passage in plants: Evidence for hotspots of genetic change Mutational analyses of molecularly cloned satellite tobacco mosaic virus during serial passage in plants: Evidence for hotspots of genetic change

The high level of genetic diversity and rapid evolution of viral RNA genomes are well documented, but few studies have characterized the rate and nature of ongoing genetic change over time under controlled experimental conditions, especially in plant hosts. The RNA genome of satellite tobacco mosaic virus (STMV) was used as an effective model for such studies because of advantageous...
Authors
Gael Kurath, J.A. Dodds

Flowing-recirculated water system for inducing spawning phase sea lampreys to spawn in the laboratory Flowing-recirculated water system for inducing spawning phase sea lampreys to spawn in the laboratory

We describe a water-recirculating system for inducing spawning of sea lampreys (Petromyzon marinus) held under laboratory conditions. Water temperature in the system was gradually increased to and maintained at 18 ± 2°C, the optimal temperature for spawning. About 10% freshwater was added daily to prevent buildup of waste products. Sea lampreys were provided substrate (approximately 3–6...
Authors
Kim T. Fredricks, James G. Seelye

Population viability of the Snake River chinook salmon (Oncorhynchus tshawytscha) Population viability of the Snake River chinook salmon (Oncorhynchus tshawytscha)

In the presence of historical data, population viability models of intermediate complexity can be parameterized and utilized to project the consequences of various management actions for endangered species. A general stochastic population dynamics model with density feedback, age structure, and autocorrelated environmental fluctuations was constructed and parameterized for best fit over...
Authors
John M. Emlen
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