Search Help
Assay of Wild Salmonids for presence of Myxobolus cerebralis

Abstract: Results of assay for M. cerebralis myxospores by digest wild juvenile salmonids recovered in the Clackamas River (OR) basin.

Purpose: To determine if Myxobolus cerebralis was already established in the Clackamas River system.

Related URL
Description: Juvenile rainbow (n=29), steelhead (n=38 and cutthroat (O. clarki, n=2) trout and Chinook salmon (n=1) were collected from locations above (Rkm 33, n=12; Rkm 31.8, n=22) and below (Rkm 13.9, n=18; Rkm 3.0, n=15; Rkm 0, n=3) the hatchery in Clear Creek in February 2002 by ODFW. Juvenile trout and salmon were collected from the Clackamas River basin, including Clear Creek, in 2002-05 by the U.S. Fish and Wildlife Service (USFWS) as part of the Wild Fish Health Survey ( From Clear Creek, these included: 1 steelhead trout (O. mykiss), 2 Spring Chinook salmon and 2 coho salmon (O. kisutch). Fish were also collected from Eagle Creek (32 cutthroat trout, 35 steelhead, 2 coho salmon), Deep Creek (1 steelhead, 5 coho salmon), Oak Grove Fork Clackamas River (2 cutthroat trout, 31 steelhead), Fish Creek (34 steelhead), Little Crater Creek (60 kokanee O. nerka, 12 brown trout Salmon trutta) and the North Fork Clackamas River (60 Chinook salmon, 8 steelhead).
Geographic Coverage
Spatial coordinates   
  N: 45.43   S: 45.2   E: -122.51   W: -122.95

Temporal Coverage
Start Date: 2002-12-01
Stop Date: 2005-12-31
Use Constraints Although these data and information have been processed successfully on the originators' computer system, no warranty expressed or implied is made regarding the accuracy or utility of the data and information on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and information, and aggregate use with other data and information. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data and information. The originator shall not be held liable for improper or incorrect use of the data and information described and/or contained herein.
Data Center
Big Sky Institute, Montana State University Supplemental Info
Data Center URL:

Data Center Personnel
Phone: (360) 305-8822
Email: lotts at
Contact Address:
NBII Mountain Prairie Information Node Coordinator Informatics Lab
Big Sky Institute 106 AJM Johnson Hall
City: Bozeman
Province or State: MT
Postal Code: 59717
Country: USA
Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2007-03-13
Last DIF Revision Date: 2017-08-23