Oregon's commercial fishery for albacore tuna (Thunnus alalunga)
is large, valuable, and variable. Little is known, however, about the
oceanographic factors which determine abundance and distribution of
albacore.
Primarily using logbook data contributed by fishermen, this study
compares albacore catches with selected ocean conditions. The study
is limited to troll-caught...
Solar radiation intensities, incident to the sea surface off the Oregon
coast, are measured and compared. Simplification of some physical
and biological problems can be anticipated if the average radiation
received over a broad segment of ocean can be accurately indicated
by the amount recorded at the land station.
The...
Using the hydrographic data collected by the ACONA from June
1961 to May 1963, the Oregon coastal front has been examined. Representative
sigma-t surfaces were chosen to delineate the front, and
changes in position of these surfaces with time were used to obtain
zonal flow rates for the frontal and...
Current observations were obtained at three locations forming
a cross section along 70°34'W longitude in Long Island Sound. Fifteen
days of data were selected from each series so that nearly
simultaneous observations were used in the analysis.
Elementary statistics were computed for the data prior to
performing a least squares...
This study examines the seasonal variability in temperature and
salinity of the nearshore waters off Oregon and Northern California.
Specifically, temperature and salinity variations during summer and
winter were ana1yzed from data gathered at shore stations along the
coast and from hydrographic data collected within 25 nautical miles
of shore....
The data recorded between March 3, 1969, and October 31, 1969,
by a wind gauge installed at the South Jetty, Newport, Oregon, were
analyzed. The components of each observation were treated as if they
were an independent, normal, bivariate distribution and standard
statistical procedures were applied. It was found that...
This thesis demonstrates that at low frequencies (periods longer
than 2.5 days) local currents off the coast of Oregon are closely
related to the wind. Wind and current observations made during
August and September 1969 are described and compared to demonstrate
that a relationship exists; the physics of the interaction...