An attenuated strain of Flavobacterium psychrophilum (CSF259-93B.17) has shown potential as a vaccine
for prevention of bacterial coldwater disease (BCWD) in rainbow trout, Oncorhynchus mykiss (Walbaum).
Because BCWD outbreaks can result in high mortality in other salmonid species, specifically coho salmon,
Oncorhynchus kisutch (Walbaum), the live-attenuated strain was tested as...
The photoelectron spectra of a series of halogenated
molecules have been investigated in the gas phase. Both
core-ionization energies and Auger kinetic energies were
measured to probe the nature of the interaction that holds
a core electron to the molecule.
It was found that satellite structure (shake) could be
used...
Gadolinium is an important element to the Nuclear Fuel Industry. Two
of the seven naturally occurring isotopes of gadolinium have very large
absorption cross sections for thermal neutrons. The isotopes of
¹⁵⁵
Gd
and
¹⁵⁷ Gd readily absorb thermal neutrons and transmute to
¹⁵⁶
Gd and
¹⁵⁸
Gd which are...
In 1959, a large scale grazing study in western Oregon was
initiated to compare the value of perennial ryegrass (Lolium perenne
L.) with subclover (Trifolium subterraneum L.) and tall fescue
(Festuca arundinacea Schreb.) with subclover, and to evaluate common
use grazing on them. The present investigation was undertaken
to determine...
Results of studies beginning in 1947 on the biology of the Dungeness crab (Cancer magister) in Oregon coastal waters are reported. A review is made of the history of the fishery with regard to trend of the catch by magnitude, area, and season; the development and conduct of the fishery...
In November, 1952, severe winter storms breached the protective Bayocean Peninsula at the mouth of Tillamook Bay. Before the month was out, the gap had widened to almost a mile. Subsequent sedimentation, erosion and salinity changes damaged oyster beds in the Bay. This document recounts interviews with oyster growers about...
Management of New Zealand marine fisheries is widely regarded as innovative and effective. However a nationwide survey in 2000 revealed that New Zealanders judge the state of New Zealand’s marine fisheries to be adequate to good, and management of the marine fisheries is only adequate. On those two criteria marine...
Describes an investigation of a dam at a millpond near the village of Chitwood, Oregon. The dam was on Haxel Creek, a tributary of Thornton Creek, a tributary of the Yaquina River. Includes a hand-drawn map of the area.
Theoretical b:::-eaking criteria for progressive surface gravity waves
are examined, and laboratory and field experiments concerned with breaking waves are reviewed with respect to the testing of these breaking criteria.
The measurements of Komar and Simmons are presented here for the first
time. Only three theoretical breaking criteria have been...