Starved cells of Ant-300, a psychrophilic marine Vibrio, maintained
binding and transport systems for glutamic acid, arginine, proline, and
leucine. The uptake of these amino acids was inhibited by the uncoupler
2,4-dinitrophenol indicating that an energized membrane was necessary
for binding and was maintined in starved cells. The levels of...
The study extends from the mouth of the Columbia River to River Mile 46. It has four elements: an overview of transportation infrastructure, dredging requirements and other constraints and opportunities; identification of potential development sites; description of estuarine impacts; and a review of policy and mitigation strategies. The study in...
Transition metal and rare earth element (REE) data are presented
for various sedimentary materials from two Manganese Nodule
Program (MANOP) sites in the eastern tropical Pacific. These data
constrain the sources of elemental supply to the seafloor and the
processes that control ferromanganese nodule genesis. Investigation
of elemental partitioning between...
Juvenile coho salmon (101-400 mm) were sampled by
purse seine off the Pacific Coast from Waatch Point,
Washington to Four Mile Creek, Oregon, out to 30 mi
offshore, during the months of May, June, and September in
1982 and 1983. Sea surface temperature, surface salinity,
surface chlorophyll-a concentration, and Secchi...
A phytoplankton bloom dominated by the pennate diatom Nitzschia
curta (Van Heurck) Hasle was observed during January-February 1983 at
a receding ice-edge in the Western Ross Sea, Antarctica. The core of
the bloom was found between 100-150 Km from the ice-edge. Nitzschia
curta cell densities up to 22 x 10⁶...
Anomaly timescales for the last 90 million years, derived from
marine magnetic profiles and published prior to mid-1979, are summarized,
illustrated for comparison, and critically reviewed. A revised timescale
is constructed using calibration points which fix the ages of anomalies
2.3', 5.5, 24, and 29. An equation is presented for...
The shallow, wave-swept sea floor off the central Oregon coast
is used by 0-age flatfishes as a nursery ground. This dissertation
is based on a series of projects designed to: 1) identify the dominant
meiobenthic nematodes present in a coastal nursery area; 2)
describe the important temporal and spatial scales...
Holocene hemipelagic deposition of terrigenous silts and clays
dominates sedimentation on most of the Oregon and Washington continental
slope. The sources of these sediments, the mechanisms causing sediment
dispersal, and the relative contributions of the various continental
sources to the marine deposits have been investigated using quantitative
mineral and geochemical...