Published March 1979. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
The physical framework or matrix in which the biological processes of aquatic ecosystems occur is currently under investigation at the Castle Lake Research Station. Special attention has been given these physical parameters in view of their close interrelationship with important biological properties within the lake (as exemplified by the rate...
This study was undertaken to compile a comprehensive
review of the literature and to gain a better understanding
of the host-parasite relationship in corynebacterial kidney
disease of salmonid fishes. An indirect fluorescent antibody
technique was developed which allowed differentiation
of intra- and extracellular bacteria. This technique was
used in combination...
Every student has a creative potential. An atmosphere needs
to be maintained in the classroom that motivates and encourages the
student to use and to develop this potential. Evidence indicates that
teachers need help in freeing and in stimulating each student's creative
potential. A learning package on design principles was...
The Purposes of the Study
The primary purpose of this study was to identify common professional
education competencies needed by public school district
vocational education leaders. Other purposes were to (1) determine
if significant differences existed in vocational education leadership
competencies among respondents as categorized by state, type of
position...
The purpose of this study was to determine if male and female
Counselor-Trainees enrolled in master's degree programs in the
State of Oregon would emit significantly different responses to a
new and professionally developed video-based client simulation.
The sample consisted of ninety-two Counselor-Trainees
enrolled during the 1975-76 academic year in...
The purpose of this study was to compare the perceptions
of the university environment of four selected groups
of residence hall students at Oregon State University:
male elected residence hall leaders (N -52), male non-leader
residence hall students (N-52), female elected residence
hall leaders (N-53), and female non-leader residence hall...
The distribution in Oregon of two viruses affecting salmonid
fishes was determined by examination of hatchery and feral fish.
Infectious pancreatic necrosis virus (IPNV) was isolated from fish
at the Oregon Department of Fish and Wildlife Research Laboratory,
Corvallis, Roaring River, Fort Klamath, and Wizard Falls Hatcheries.
Fish collected at...
Mathematical modeling of phytoplankton populations based on laboratory observations provides increased understanding of the interaction among the environmental and biological mechanisms. influencing growth dynamics. Such fundamental understanding is necessary to estimate the impact of man-made perturbations on natural population.
A three-compartment mathematical model was developed to represent a phytoplankton population...