Conductivity data from which salinity values were computed were collected at 10 locations in Yaquina Bay from April 1967 to October 1968. Streamflow was measured for the Yaquina River, Elk Creek and Mill Creek from April 1967 to November 1968. Wind speed and direction data were collected near the mouth...
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....
Several studies were conducted to determine the feasibility of
using terbacil (3-tert-butyl-5-chloro-6-methyluracil) postemergence
to weeds and peppermint (Mentha piperita L.). Three nonionic surfactants,
four nonphytotoxic oils, and a liquid fertilizer were each
combined with 0.5 lb ai/A terbacil in 35 gallons of water per acre.
Weed species tested include: redroot...
Penetration has long been recognized as an important factor
in the action of chemicals on plants. The effectiveness of herbicides
on such plants as blackberries is often thought to be limited by the
failure to obtain adequate penetration through the cuticular barrier.
A number of factors, among them relative humidity,...
A summary of moored instrument measurements over the continental
shelf of Peru is presented. Measurements of variables were made in an
upwelling zone between Pisco and San Juan, from 28 March to 9 April, 1969.
Time series of temperature and horizontal current and wind velocities were
obtained at several depths...
The adaptiveness of polygyny in passerines poses a particularly
intriguing problem. The altricial young of this group require extended
parental care, but young of polygynous pairings generally lack the undivided
attention of the male which young of monogamous pairings receive.
Polygynous offspring may thus be undernourished and experience
greater mortality....