The movements of a population of adult sockeye salmon
(Oncorhynchus nerka) were followed in a small tributary of Brooks
Lake, Alaska until spawning was nearly complete in 1963. The objectives
of the study were to describe the movements of sockeye
salmon on the spawning ground of an entire small stream,...
The experiment was conducted at the Soap Creek farm ponds
near Corvallis, Oregon. Oregon Moist Pellet and Purina Trout
Chow at three different rates of feeding for each diet were used
to feed fingerling channel catfish stocked at the rate of 1,000 per
acre. A complete random design and Fisher's...
The effects of a sublethal concentration of dieldrin (0. 2 ppb)
in the water on the growth and body composition of underyearling rainbow
and cutthroat trout held in aquaria and fed different rations of tubificid
worms or Oregon moist pellets were studied at Oak Creek Fisheries
Research Laboratory, Oregon State...
Historic changes that have taken place on Oregon's commercial
salmon fisheries are described in terms of their effects on the efficiency
of fishermen. This historical analysis provides a background
for comparative efficiency studies of Columbia River gillnetters and
ocean trollers with the objective of determining which harvester
group was more...
A theoretical framework for economic fishery management was
developed. Extensive isocline analysis of a general fishery model
yielded a detailed look at the possible equilibrium behavior of a
system that was allowed to vary in terms of the levels of its
environmental parameters, its composition, and the response functions
governing...