Search Constraints

Start Over
Filtering by: Subject Steelhead (Fish) -- Habitat -- Oregon Remove constraint Subject: Steelhead (Fish) -- Habitat -- Oregon Decade 2000-2009 Remove constraint Decade: 2000-2009

Search Results

  • Description and prediction of broad-scale spatial variability in expression of anadromy in female Oncorhynchus mykiss in the John Day River, Oregon, USA

    Creator:
    Mills, Justin S.
    Abstract:
    Partial migration is a common migratory behavior where some individuals in a population migrate and others do not. Patterns of partial migration can vary dramatically, especially for species that inhabit a wide range of environments. I described and predicted spatial variation in marine migration (anadromy) of female Oncorhynchus mykiss (steelhead...
    Resource Type:
    Masters Thesis
    Full Text:
    sites throughout the study area used for monitoring of steelhead by the State of Oregon (J. Ruzycki

  • The Oregon Plan for Salmon and Watersheds : biennial report 2003-2005 : volume 1

    Creator:
    Oregon Watershed Enhancement Board
    Abstract:
    The report summarizes basin level accomplishments and investments related to water quality improvements, fish recovery, and watershed health. The report also provides an overview of state agency actions and recommendations to enhance the effectiveness of the Oregon Plan.
    Resource Type:
    Technical Report
    Full Text:
    Mission: To restore the watersheds of Oregon and to recover the fish and wildlife populations of those

  • The Oregon Plan for Salmon and Watersheds : biennial report 2001-2003

    Creator:
    Oregon Watershed Enhancement Board
    Abstract:
    This is the fourth report on the Oregon Plan for Salmon and Watersheds. The first three reports focused on people – their stories and their efforts to restore watershed health and recover listed fish species. While these earlier reports contained what little information was available regarding the quantitative aspects of...
    Resource Type:
    Technical Report
    Full Text:
    of Oregon and to recover the fish and wildlife populations of those watersheds to productive and

  • Habitat selection of hatchery and wild juvenile salmonids in Eagle Creek Basin, Oregon

    Creator:
    Brignon, William R.
    Abstract:
    To best manage Eagle Creek National Fish Hatchery and minimize any negative impacts that the current hatchery program may be having on Endangered Species Act-listed salmonids in the Eagle Creek Basin, I determined if wild fish are being displaced from preferred habitats by hatchery salmonids Oncorhynchus spp. This thesis had...
    Resource Type:
    Masters Thesis
    Full Text:
    fish populations. Residual hatchery steelhead comprised 0.9% of the winter steelhead population (1.1

  • Ecological relation of sympatric steelhead and resident rainbow trout in the Deschutes River, Oregon

    Creator:
    Zimmerman, Christian E.
    Abstract:
    Sympatric steelhead and resident rainbow trout (Oncorhynchus mykiss) are known to exist in many rivers throughout the Pacific Rim. Whether sympatric steelhead and resident rainbow trout are polymorphisms within a single gene pool or two reproductively isolated populations has significant implications concerning the study and conservation of this polytypic species....
    Resource Type:
    Dissertation
    Full Text:
    , Oregon. Gordon H. Reeves Sympatric steelhead and resident rainbow trout (Oncorhynchus mykiss) are known

  • Development of a progeny marker for steelhead

    Creator:
    Shippentower, Gene E.
    Abstract:
    This study was undertaken to determine if strontium chloride could be used to create a trans-generational otolith mark in steelhead (Oncorhynchus mykiss). I completed two strontium injection trials and a survey of juvenile steelhead from various steelhead hatcheries. The two trials measured Sr:Ca ratios in otoliths in response to injections...
    Resource Type:
    Masters Thesis
    Full Text:
    steelhead (20 males and 23 females) were trapped and transported to Oregon State University’s Fish

  • Oregon's wetland regulatory framework : A synthesis of approaches

    Creator:
    Wirth, Julie A.
    Abstract:
    This paper will address Oregon's ability to regulate and manage its wetland resources as a means for protecting and enhancing salmon habitat. After identifying the importance of wetland environments the paper will look into OWRF to assess its effectiveness. Ultimately the paper will conclude that OWRF's design is an effective...
    Resource Type:
    Capstone Project

  • Cormorant harassment to protect juvenile salmonids in Tillamook County, Oregon

    Creator:
    Bayer, Range D., 1947-
    Abstract:
    The goal of the Oregon Plan is to restore wild coho and wild steelhead runs. Under the federal Endangered Species Act, wild coho salmon along the Oregon Coast are listed as Threatened and wild Oregon Coast steelhead are a candidate for listing. Although cormorants have been hazed at the Nehalem...
    Resource Type:
    Book
    Full Text:
    . Coho salmon--Oregon--Tillamook County. 4. Steelhead (Fish)--Oregon--Tillamook County. I. Title

  • Seasonal life history of Oncorhynchus mykiss in the South Fork John Day River Basin, Oregon

    Creator:
    Tattam, Ian A.
    Abstract:
    Understanding seasonal changes in growth, survival, and movement rates is crucial to salmonid management. These life history characteristics provide a context for evaluation of management actions. We evaluated the life history of individually marked Oncorhynchus mykiss gairdneri in the South Fork John Day River basin in Northeastern Oregon. This thesis...
    Resource Type:
    Masters Thesis
    Full Text:
    One strategy for regaining the historic abundance of summer steelhead focuses on restoring habitat

  • Countersunk culvert hydraulics for upstream juvenile fish passage

    Creator:
    House, Matthew R.
    Abstract:
    Twenty-one countersunk culverts in Oregon were inventoried to establish baseline information for the stream crossings so that subsequent resurveys can assess the long-term stability and functionality of the culvert design. A subset of the inventoried culverts was selected for detailed hydraulic measurements. The detailed velocity measurements were used to help...
    Resource Type:
    Masters Thesis
    Full Text:
    salmonids (NMFS, 1996; NMFS 2000). Oregon Department of Fish and Wildlife (1997) culvert design guidelines