A newly developed calcium sensitive liquid-liquid membrane
electrode is used to analyse seawater off the Oregon coast in waters
fed by the Columbia River runoff. For the analysis, an application of
the method of standard additions is used requiring the assumption that
the seawater is of so high a salt...
An intensive chemical investigation, that includes the
determinations of salinity, oxygen, nutrients, pH, alkalinity, and
total carbon dioxide of the Columbia River plume off the Oregon
coast in July 1967 shows the following unique features:
1. Along the axis of the river plume both the salinity minimum and
temperature maximum...
Data from the Surveyor 1968 Spring cruise were used to study
the vertical distribution of salinity, temperature, dissolved oxygen,
apparent oxygen utilization, pH, alkalinity, specific alkalinity and
percent saturation of calcite in two sections, one along 162°W from
35°N to 45°N and the other along 180°W from 35°N to 50°N....
The Geochemical Ocean Sections Study (GEOSECS) program has carried
out an intensive study of physical and chemical parameters in the
Pacific and Atlantic Ocean. As a result, an enormous collection of high
quality data has been amassed for these two oceans. To analyze the
Pacific data, fourteen stations extending from...
Phosphate, silicate and nitrate concentrations in the sea off
the coast of Oregon were determined to study their seasonal distribution
patterns. The water samples were collected monthly along the
east-west hydrographic line off Newport, Oregon, from the shore to
165 miles (310 km) offshore. The samples were analyzed by both...
Nitrate reductase is known to be the enzyme regulating the
reduction of nitrate to nitrite in plants. This reduction is the first
and rate-limiting step in the transformation of inorganic nitrate to
a cellular nitrogen form. Since this reduction process is essential
to phytoplankton growth when nitrate is the only...