Estuaries, an important part of the continental shelf, have been
important centers for the economic development of man. They serve
as an interface between the terrestrial and oceanic realm and are a
part of the ocean that receives the most physical damage.
Different agencies and political groups are vested with...
The intent of "Oregon Port Districts: An Economic Profile" is to present
a profile of the activities of the Oregon Port Districts and to evaluate
some of the economic contributions that port district operations made in
1975. The study reflects the present role of the port districts within
their community...
This report presents observations from two programs in 1975, WISP and UP-75 to study circulation off Oregon. WISP was a study of the transition between the winter and spring regimes, and UP-75 was designed to determine whether there is a poleward undercurrent along the continental slope during the upwellinq season....
Self-recording instruments were installed in the Drake Passage in February 1975. Approximately one-half were part of a short-term array (3 + weeks) and were all successfully recovered in March 1975. The remainder are part of the long-term array which was recovered in January 1976.
The short-term array consisted of 2...
This report represents the progress in "Ecological and Radioecological
Studies in the Columbia River Estuary and Adjacent Pacific
Ocean" for the period 1 April 1975 through 31 March 1976. This research
has been supported with funds from the Division of Biomedical and
Environmental Research, U.S. Energy Research and Development Administration...
Instrumentation for rapid, high precision size analysis of silt and sand size particles has been acquired and/or developed by the marine geology group of the School of Oceanography of Oregon State University. A Cahn automatic electrobalance with particle sedimentation accessories is used for size analysis of the silt fraction of...
This is the first of two technical reports derived from the dissertation
by Yao, Neng-Chun titled "Bispectral and Cross-bispectral Analysis
of Winds and Currents off the Oregon Coast. " In this first technical
report we give the theoretical development of the rotary component
approach to the bispectrum and cross-bispectrum among...
The purpose of this work was to develop a dynamic partial order model of II electrolyte solutions which avoids inconsistencies present in the Debye-1-Iuckel and 1n related theories. It is shown that our results are consistent with activity coefficient data in aqueous electrolyte solutions. The main features of our work...
Precise chemical analyses of geological samples continue to play an
important role in geochemical research. During the past 10 years atomic
absorption spectrophotometry has become increasingly prominent as an
accurate and relatively simple analytical technique. The marine geochemistry
group at OST7 has used a Jarrel-Ash 82-820 atomic absorption
spectrophotometer (AAS)...
The Port of Astoria has proposed to fill a 32.4 hectare inter- and
subtidal area at the mouth of Youngs Bay, Columbia River, Oregon. The
possible effects of this fill on the biota and sedimentation patterns
of this area were studied from 31 August 1975 to 29 February 1976. Part...
This compilation lists in chronological order the oceanographic reports published in 1974 and 1975. It is the second annual update of our reference 74-1 which brought together a listing of all the numbered series issued, 1955-1973. Reference 75-1 listed 1972-1973 and 1974 reports. It also lists theses for which degrees...
Catch data for albacore troll boats were collected from fishermen's logbooks and from dockside
interviews during the 1968, 1969, and 1970 seasons. Fishing powers of these boats were calculated and used to determine the 10 most successful and 10 least successful fishermen (highliners and lowliners, respectively) who fished off Oregon...
Pandalis jordani Rathbun, like many other species of pandalid shrimps, undergo regular diel changes in their vertical distribution (Tegelberg and Smith 1957; Alverson et al. 1960; Pearcy 1970, 1972; Robinson in press). Little is known, however, about the vertical distribution and diel migrations of larval and juvenile shrimp, or at...
Factor analysis of radiolarian species from the tops of 34 gravity
cores in the area extending from 5°N to 45°N, 95°W to 155°W, yields
five factor assemblages which are related to the present surface circulation:
1) a Pacific Equatorial Water assemblage; 2) a California
Current assemblage; 3) a North Equatorial...
This technical report summarizes the
results of a three year study of the zooplankton
living in the nearshore zone off
Newport, Oregon. The sampling program was
part of the Early Life History (ELH) project
of the Oregon State University Sea Grant Program
and was designed to study the ecology
of...
An investigation was conducted on factors influencing sex ratio in Eurytemora. Fifteen generations of brother/sister mating have produced family lines with a high proportion of either males or females of Eurytemora affinis. On this basis, a polygenic mechanism of sex
determination is proposed for E. affinis. Laboratory experiments on the...
During the period 1970-76, Siletz Spit on the mid-Oregon coast
has suffered foredune erosion. This erosion is associated with high
wave conditions along the coast, produced by intense storms in the
North Pacific.
During the winter of 1972-73 and during January through March
1976 the erosion was particularly severe. The...